/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_spec3_product34.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:33,023 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:33,027 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:33,086 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:33,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:33,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:33,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:33,104 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:33,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:33,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:33,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:33,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:33,144 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:33,157 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:33,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:33,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:33,163 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:33,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:33,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:33,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:33,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:33,174 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:33,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:33,176 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:33,179 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:33,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:33,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:33,184 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:33,185 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:33,186 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:33,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:33,187 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:33,188 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:33,188 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:33,189 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:33,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:33,191 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:33,218 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:33,218 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:33,219 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:33,220 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:33,220 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:33,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:33,220 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:33,220 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:33,221 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:33,221 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:33,221 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:33,221 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:33,221 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:33,222 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:33,222 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:33,222 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:33,222 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:33,222 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:33,223 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:33,223 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:33,223 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:33,223 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:33,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:33,224 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:33,224 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:33,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:33,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:33,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:33,641 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:33,643 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:33,644 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:33,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2020-12-22 06:55:33,721 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439df1494/8960010de5a046048e4c9e4be90c7f3e/FLAGb9108c1bb [2020-12-22 06:55:34,324 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:34,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product34.cil.c [2020-12-22 06:55:34,339 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439df1494/8960010de5a046048e4c9e4be90c7f3e/FLAGb9108c1bb [2020-12-22 06:55:34,586 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/439df1494/8960010de5a046048e4c9e4be90c7f3e [2020-12-22 06:55:34,589 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:34,591 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:34,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:34,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:34,598 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:34,599 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,601 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@372a4313 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34, skipping insertion in model container [2020-12-22 06:55:34,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,611 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:34,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:35,081 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_spec3_product34.cil.c[15847,15860] [2020-12-22 06:55:35,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:35,123 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:35,229 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_spec3_product34.cil.c[15847,15860] [2020-12-22 06:55:35,236 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:35,274 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:35,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35 WrapperNode [2020-12-22 06:55:35,275 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:35,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:35,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:35,277 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:35,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,414 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:35,415 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:35,415 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:35,415 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:35,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (1/1) ... [2020-12-22 06:55:35,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:35,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:35,458 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:35,458 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:35,459 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (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 06:55:35,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:35,568 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:35,569 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:35,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:36,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:36,452 INFO L299 CfgBuilder]: Removed 104 assume(true) statements. [2020-12-22 06:55:36,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:36 BoogieIcfgContainer [2020-12-22 06:55:36,454 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:36,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:36,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:36,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:36,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:34" (1/3) ... [2020-12-22 06:55:36,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8b6465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:36, skipping insertion in model container [2020-12-22 06:55:36,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:35" (2/3) ... [2020-12-22 06:55:36,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8b6465 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:36, skipping insertion in model container [2020-12-22 06:55:36,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:36" (3/3) ... [2020-12-22 06:55:36,463 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product34.cil.c [2020-12-22 06:55:36,470 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:36,475 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:36,497 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:36,524 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:36,524 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:36,524 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:36,525 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:36,525 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:36,525 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:36,525 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:36,525 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:36,542 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-22 06:55:36,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:36,549 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,550 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,550 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,557 INFO L82 PathProgramCache]: Analyzing trace with hash 143052540, now seen corresponding path program 1 times [2020-12-22 06:55:36,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028982025] [2020-12-22 06:55:36,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,854 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 06:55:36,854 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028982025] [2020-12-22 06:55:36,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:36,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561982814] [2020-12-22 06:55:36,861 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:36,862 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:36,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:36,880 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-12-22 06:55:36,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,911 INFO L93 Difference]: Finished difference Result 162 states and 245 transitions. [2020-12-22 06:55:36,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:36,913 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:36,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,925 INFO L225 Difference]: With dead ends: 162 [2020-12-22 06:55:36,925 INFO L226 Difference]: Without dead ends: 80 [2020-12-22 06:55:36,929 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 06:55:36,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-22 06:55:36,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-22 06:55:36,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:55:36,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-12-22 06:55:36,974 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 18 [2020-12-22 06:55:36,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,975 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-12-22 06:55:36,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:36,975 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-12-22 06:55:36,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:36,977 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,977 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:36,978 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,979 INFO L82 PathProgramCache]: Analyzing trace with hash -767978213, now seen corresponding path program 1 times [2020-12-22 06:55:36,979 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,979 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615386881] [2020-12-22 06:55:36,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,102 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 06:55:37,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615386881] [2020-12-22 06:55:37,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:37,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515969934] [2020-12-22 06:55:37,105 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:37,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:37,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:37,107 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 3 states. [2020-12-22 06:55:37,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,119 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2020-12-22 06:55:37,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:37,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:37,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,121 INFO L225 Difference]: With dead ends: 80 [2020-12-22 06:55:37,121 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 06:55:37,122 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 06:55:37,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 06:55:37,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-22 06:55:37,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-22 06:55:37,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-12-22 06:55:37,128 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-12-22 06:55:37,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,129 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-12-22 06:55:37,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:37,129 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-12-22 06:55:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:37,130 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,130 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 06:55:37,130 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:37,131 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,132 INFO L82 PathProgramCache]: Analyzing trace with hash 459341460, now seen corresponding path program 1 times [2020-12-22 06:55:37,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,132 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543599033] [2020-12-22 06:55:37,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,290 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 06:55:37,292 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543599033] [2020-12-22 06:55:37,292 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:37,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743454215] [2020-12-22 06:55:37,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:37,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:37,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:37,298 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-12-22 06:55:37,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,335 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2020-12-22 06:55:37,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:37,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:55:37,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,339 INFO L225 Difference]: With dead ends: 66 [2020-12-22 06:55:37,339 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 06:55:37,342 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 06:55:37,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 06:55:37,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-22 06:55:37,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-22 06:55:37,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-12-22 06:55:37,354 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-12-22 06:55:37,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,355 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-12-22 06:55:37,355 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:37,355 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-12-22 06:55:37,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:55:37,356 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,356 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] [2020-12-22 06:55:37,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:37,356 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,360 INFO L82 PathProgramCache]: Analyzing trace with hash -179810352, now seen corresponding path program 1 times [2020-12-22 06:55:37,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461912687] [2020-12-22 06:55:37,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,438 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 06:55:37,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461912687] [2020-12-22 06:55:37,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:37,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569343013] [2020-12-22 06:55:37,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:37,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:37,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:37,441 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-12-22 06:55:37,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,463 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-12-22 06:55:37,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:37,464 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:55:37,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,465 INFO L225 Difference]: With dead ends: 89 [2020-12-22 06:55:37,465 INFO L226 Difference]: Without dead ends: 59 [2020-12-22 06:55:37,466 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 06:55:37,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-12-22 06:55:37,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-12-22 06:55:37,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 06:55:37,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2020-12-22 06:55:37,475 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 25 [2020-12-22 06:55:37,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,476 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2020-12-22 06:55:37,476 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:37,476 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2020-12-22 06:55:37,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:55:37,477 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,477 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 06:55:37,478 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:37,478 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1667839457, now seen corresponding path program 1 times [2020-12-22 06:55:37,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124509849] [2020-12-22 06:55:37,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,596 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 06:55:37,597 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124509849] [2020-12-22 06:55:37,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:55:37,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491739918] [2020-12-22 06:55:37,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:37,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:37,600 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:37,601 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 5 states. [2020-12-22 06:55:37,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,717 INFO L93 Difference]: Finished difference Result 149 states and 209 transitions. [2020-12-22 06:55:37,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:55:37,718 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:55:37,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,721 INFO L225 Difference]: With dead ends: 149 [2020-12-22 06:55:37,721 INFO L226 Difference]: Without dead ends: 98 [2020-12-22 06:55:37,724 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 06:55:37,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-22 06:55:37,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2020-12-22 06:55:37,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:55:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-12-22 06:55:37,739 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 31 [2020-12-22 06:55:37,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,740 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-12-22 06:55:37,740 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:37,740 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-12-22 06:55:37,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:55:37,742 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,743 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 06:55:37,743 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:37,744 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,745 INFO L82 PathProgramCache]: Analyzing trace with hash 540443364, now seen corresponding path program 1 times [2020-12-22 06:55:37,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675265679] [2020-12-22 06:55:37,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,848 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 06:55:37,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675265679] [2020-12-22 06:55:37,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:37,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735820453] [2020-12-22 06:55:37,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:37,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:37,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:37,851 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand 5 states. [2020-12-22 06:55:37,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,961 INFO L93 Difference]: Finished difference Result 314 states and 451 transitions. [2020-12-22 06:55:37,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:37,963 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:55:37,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,965 INFO L225 Difference]: With dead ends: 314 [2020-12-22 06:55:37,965 INFO L226 Difference]: Without dead ends: 260 [2020-12-22 06:55:37,966 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 06:55:37,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-12-22 06:55:38,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 106. [2020-12-22 06:55:38,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 06:55:38,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-12-22 06:55:38,004 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 31 [2020-12-22 06:55:38,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:38,004 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-12-22 06:55:38,004 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:38,004 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-12-22 06:55:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:38,006 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:38,006 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:38,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:55:38,006 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:38,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:38,007 INFO L82 PathProgramCache]: Analyzing trace with hash -1572316506, now seen corresponding path program 1 times [2020-12-22 06:55:38,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:38,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890267312] [2020-12-22 06:55:38,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:38,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:38,075 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 06:55:38,075 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890267312] [2020-12-22 06:55:38,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:38,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:38,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018077486] [2020-12-22 06:55:38,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:55:38,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:38,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:55:38,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:55:38,078 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-12-22 06:55:38,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:38,221 INFO L93 Difference]: Finished difference Result 212 states and 295 transitions. [2020-12-22 06:55:38,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:55:38,221 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-22 06:55:38,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:38,223 INFO L225 Difference]: With dead ends: 212 [2020-12-22 06:55:38,223 INFO L226 Difference]: Without dead ends: 158 [2020-12-22 06:55:38,224 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 06:55:38,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-22 06:55:38,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2020-12-22 06:55:38,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 06:55:38,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2020-12-22 06:55:38,240 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 32 [2020-12-22 06:55:38,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:38,241 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2020-12-22 06:55:38,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:55:38,241 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2020-12-22 06:55:38,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:38,242 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:38,242 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:38,243 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:55:38,243 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:38,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:38,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1711533540, now seen corresponding path program 1 times [2020-12-22 06:55:38,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:38,244 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084291873] [2020-12-22 06:55:38,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:38,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:38,289 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 06:55:38,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084291873] [2020-12-22 06:55:38,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:38,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:38,290 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616133724] [2020-12-22 06:55:38,290 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:55:38,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:38,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:55:38,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:55:38,292 INFO L87 Difference]: Start difference. First operand 155 states and 212 transitions. Second operand 4 states. [2020-12-22 06:55:38,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:38,333 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2020-12-22 06:55:38,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:55:38,334 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-22 06:55:38,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:38,336 INFO L225 Difference]: With dead ends: 350 [2020-12-22 06:55:38,336 INFO L226 Difference]: Without dead ends: 246 [2020-12-22 06:55:38,337 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 06:55:38,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-12-22 06:55:38,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 152. [2020-12-22 06:55:38,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-22 06:55:38,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2020-12-22 06:55:38,353 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 32 [2020-12-22 06:55:38,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:38,354 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2020-12-22 06:55:38,354 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:55:38,354 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2020-12-22 06:55:38,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:38,355 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:38,355 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:38,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:55:38,356 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:38,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:38,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1197872225, now seen corresponding path program 1 times [2020-12-22 06:55:38,357 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:38,357 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174881744] [2020-12-22 06:55:38,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:38,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:38,416 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 06:55:38,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174881744] [2020-12-22 06:55:38,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:38,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:55:38,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135348411] [2020-12-22 06:55:38,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:55:38,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:38,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:55:38,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:55:38,419 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand 6 states. [2020-12-22 06:55:38,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:38,610 INFO L93 Difference]: Finished difference Result 347 states and 484 transitions. [2020-12-22 06:55:38,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:55:38,611 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-12-22 06:55:38,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:38,612 INFO L225 Difference]: With dead ends: 347 [2020-12-22 06:55:38,612 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 06:55:38,613 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:55:38,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 06:55:38,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 60. [2020-12-22 06:55:38,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:55:38,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-12-22 06:55:38,624 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 32 [2020-12-22 06:55:38,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:38,624 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-12-22 06:55:38,624 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:55:38,624 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-12-22 06:55:38,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:38,627 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:38,627 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:38,628 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:55:38,628 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:38,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:38,628 INFO L82 PathProgramCache]: Analyzing trace with hash 1969698978, now seen corresponding path program 1 times [2020-12-22 06:55:38,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:38,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899612625] [2020-12-22 06:55:38,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:38,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:38,724 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 06:55:38,724 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899612625] [2020-12-22 06:55:38,724 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:38,725 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:55:38,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227624838] [2020-12-22 06:55:38,725 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:55:38,726 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:38,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:55:38,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:55:38,727 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 6 states. [2020-12-22 06:55:38,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:38,793 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2020-12-22 06:55:38,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:55:38,793 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-12-22 06:55:38,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:38,794 INFO L225 Difference]: With dead ends: 103 [2020-12-22 06:55:38,794 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:55:38,795 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:55:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:55:38,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:55:38,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:55:38,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:55:38,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-12-22 06:55:38,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:38,796 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:55:38,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:55:38,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:55:38,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:55:38,797 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:55:38,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:55:39,610 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 788) no Hoare annotation was computed. [2020-12-22 06:55:39,610 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:55:39,610 INFO L189 CegarLoopUtils]: For program point L87(lines 87 100) no Hoare annotation was computed. [2020-12-22 06:55:39,611 INFO L185 CegarLoopUtils]: At program point L236(lines 236 242) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2))) [2020-12-22 06:55:39,611 INFO L185 CegarLoopUtils]: At program point L236-1(lines 236 242) the Hoare annotation is: false [2020-12-22 06:55:39,611 INFO L185 CegarLoopUtils]: At program point L236-2(lines 236 242) the Hoare annotation is: false [2020-12-22 06:55:39,611 INFO L189 CegarLoopUtils]: For program point L765(lines 765 778) no Hoare annotation was computed. [2020-12-22 06:55:39,611 INFO L185 CegarLoopUtils]: At program point L765-1(lines 1 920) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 .cse0 .cse2))) [2020-12-22 06:55:39,612 INFO L189 CegarLoopUtils]: For program point L765-2(lines 765 778) no Hoare annotation was computed. [2020-12-22 06:55:39,612 INFO L185 CegarLoopUtils]: At program point L765-3(lines 1 920) the Hoare annotation is: false [2020-12-22 06:55:39,612 INFO L189 CegarLoopUtils]: For program point L765-4(lines 765 778) no Hoare annotation was computed. [2020-12-22 06:55:39,612 INFO L185 CegarLoopUtils]: At program point L765-5(lines 1 920) the Hoare annotation is: false [2020-12-22 06:55:39,612 INFO L185 CegarLoopUtils]: At program point L881(lines 872 885) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:39,613 INFO L185 CegarLoopUtils]: At program point L369(lines 354 372) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 (not .cse1) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse2 (<= 2 ~waterLevel~0) .cse3 .cse4 (not .cse5)) (and (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse0 .cse6 .cse3 .cse4) (and .cse6 .cse5 .cse1 .cse3 .cse4))) .cse2))) [2020-12-22 06:55:39,613 INFO L185 CegarLoopUtils]: At program point L881-1(lines 872 885) the Hoare annotation is: false [2020-12-22 06:55:39,613 INFO L185 CegarLoopUtils]: At program point L369-1(lines 354 372) the Hoare annotation is: false [2020-12-22 06:55:39,613 INFO L185 CegarLoopUtils]: At program point L881-2(lines 872 885) the Hoare annotation is: false [2020-12-22 06:55:39,613 INFO L185 CegarLoopUtils]: At program point L369-2(lines 354 372) the Hoare annotation is: false [2020-12-22 06:55:39,613 INFO L185 CegarLoopUtils]: At program point L105(lines 56 106) the Hoare annotation is: false [2020-12-22 06:55:39,614 INFO L189 CegarLoopUtils]: For program point L799(lines 799 803) no Hoare annotation was computed. [2020-12-22 06:55:39,614 INFO L189 CegarLoopUtils]: For program point L799-3(lines 799 803) no Hoare annotation was computed. [2020-12-22 06:55:39,614 INFO L189 CegarLoopUtils]: For program point L799-6(lines 799 803) no Hoare annotation was computed. [2020-12-22 06:55:39,614 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:55:39,614 INFO L189 CegarLoopUtils]: For program point L58(lines 57 104) no Hoare annotation was computed. [2020-12-22 06:55:39,614 INFO L185 CegarLoopUtils]: At program point L917(lines 912 920) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:55:39,614 INFO L185 CegarLoopUtils]: At program point L174(lines 170 176) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:55:39,615 INFO L185 CegarLoopUtils]: At program point L868(lines 863 871) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2 (= |ULTIMATE.start_getWaterLevel_#res| 1)))) [2020-12-22 06:55:39,615 INFO L185 CegarLoopUtils]: At program point L868-1(lines 863 871) the Hoare annotation is: false [2020-12-22 06:55:39,615 INFO L185 CegarLoopUtils]: At program point L868-2(lines 863 871) the Hoare annotation is: false [2020-12-22 06:55:39,615 INFO L189 CegarLoopUtils]: For program point L769(lines 769 775) no Hoare annotation was computed. [2020-12-22 06:55:39,615 INFO L189 CegarLoopUtils]: For program point L769-2(lines 769 775) no Hoare annotation was computed. [2020-12-22 06:55:39,615 INFO L189 CegarLoopUtils]: For program point L769-4(lines 769 775) no Hoare annotation was computed. [2020-12-22 06:55:39,615 INFO L189 CegarLoopUtils]: For program point L59(lines 59 63) no Hoare annotation was computed. [2020-12-22 06:55:39,616 INFO L185 CegarLoopUtils]: At program point L125-2(lines 125 139) the Hoare annotation is: false [2020-12-22 06:55:39,616 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 788) no Hoare annotation was computed. [2020-12-22 06:55:39,616 INFO L185 CegarLoopUtils]: At program point L836(lines 831 839) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~2 0) .cse0 .cse2))) [2020-12-22 06:55:39,616 INFO L185 CegarLoopUtils]: At program point L836-1(lines 831 839) the Hoare annotation is: false [2020-12-22 06:55:39,616 INFO L185 CegarLoopUtils]: At program point L836-2(lines 831 839) the Hoare annotation is: false [2020-12-22 06:55:39,616 INFO L189 CegarLoopUtils]: For program point L126(line 126) no Hoare annotation was computed. [2020-12-22 06:55:39,617 INFO L192 CegarLoopUtils]: At program point L209(lines 190 212) the Hoare annotation is: true [2020-12-22 06:55:39,617 INFO L189 CegarLoopUtils]: For program point L77(lines 77 83) no Hoare annotation was computed. [2020-12-22 06:55:39,617 INFO L185 CegarLoopUtils]: At program point L77-1(lines 77 83) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:39,617 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:55:39,617 INFO L189 CegarLoopUtils]: For program point L788(line 788) no Hoare annotation was computed. [2020-12-22 06:55:39,617 INFO L189 CegarLoopUtils]: For program point L788-1(line 788) no Hoare annotation was computed. [2020-12-22 06:55:39,617 INFO L189 CegarLoopUtils]: For program point L788-2(line 788) no Hoare annotation was computed. [2020-12-22 06:55:39,618 INFO L189 CegarLoopUtils]: For program point L95(lines 95 99) no Hoare annotation was computed. [2020-12-22 06:55:39,618 INFO L185 CegarLoopUtils]: At program point L95-2(lines 229 235) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:39,618 INFO L189 CegarLoopUtils]: For program point L261(lines 261 278) no Hoare annotation was computed. [2020-12-22 06:55:39,618 INFO L189 CegarLoopUtils]: For program point L261-1(lines 261 278) no Hoare annotation was computed. [2020-12-22 06:55:39,618 INFO L189 CegarLoopUtils]: For program point L261-2(lines 261 278) no Hoare annotation was computed. [2020-12-22 06:55:39,618 INFO L189 CegarLoopUtils]: For program point L129(lines 129 133) no Hoare annotation was computed. [2020-12-22 06:55:39,618 INFO L189 CegarLoopUtils]: For program point L129-1(lines 229 235) no Hoare annotation was computed. [2020-12-22 06:55:39,619 INFO L189 CegarLoopUtils]: For program point L823(lines 823 827) no Hoare annotation was computed. [2020-12-22 06:55:39,619 INFO L185 CegarLoopUtils]: At program point L229(lines 228 247) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:39,619 INFO L189 CegarLoopUtils]: For program point L229-1(lines 229 235) no Hoare annotation was computed. [2020-12-22 06:55:39,619 INFO L185 CegarLoopUtils]: At program point L229-2(lines 228 247) the Hoare annotation is: false [2020-12-22 06:55:39,619 INFO L185 CegarLoopUtils]: At program point L229-3(lines 228 247) the Hoare annotation is: false [2020-12-22 06:55:39,619 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 788) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L759(lines 759 779) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L759-2(lines 759 779) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L759-4(lines 759 779) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L363(lines 363 367) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L363-2(lines 363 367) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L363-3(lines 363 367) no Hoare annotation was computed. [2020-12-22 06:55:39,620 INFO L189 CegarLoopUtils]: For program point L363-5(lines 363 367) no Hoare annotation was computed. [2020-12-22 06:55:39,621 INFO L189 CegarLoopUtils]: For program point L363-6(lines 363 367) no Hoare annotation was computed. [2020-12-22 06:55:39,621 INFO L189 CegarLoopUtils]: For program point L363-8(lines 363 367) no Hoare annotation was computed. [2020-12-22 06:55:39,621 INFO L185 CegarLoopUtils]: At program point L314(lines 309 317) the Hoare annotation is: (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not (= ~pumpRunning~0 0)) (= 1 ~systemActive~0) (not (= |ULTIMATE.start_isPumpRunning_#res| 0)) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:55:39,621 INFO L185 CegarLoopUtils]: At program point L314-1(lines 309 317) the Hoare annotation is: false [2020-12-22 06:55:39,621 INFO L185 CegarLoopUtils]: At program point L314-2(lines 309 317) the Hoare annotation is: false [2020-12-22 06:55:39,621 INFO L185 CegarLoopUtils]: At program point L909(lines 1 920) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L876(lines 876 882) no Hoare annotation was computed. [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L876-1(lines 876 882) no Hoare annotation was computed. [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L876-2(lines 876 882) no Hoare annotation was computed. [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L265(lines 265 273) no Hoare annotation was computed. [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L265-1(lines 265 273) no Hoare annotation was computed. [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L265-2(lines 265 273) no Hoare annotation was computed. [2020-12-22 06:55:39,622 INFO L189 CegarLoopUtils]: For program point L67(lines 67 73) no Hoare annotation was computed. [2020-12-22 06:55:39,623 INFO L185 CegarLoopUtils]: At program point L67-1(lines 67 73) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ULTIMATE.start_isHighWaterLevel_~tmp~3 0) (not .cse1) .cse0 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:39,623 INFO L189 CegarLoopUtils]: For program point L811(lines 811 815) no Hoare annotation was computed. [2020-12-22 06:55:39,623 INFO L189 CegarLoopUtils]: For program point L200(lines 200 207) no Hoare annotation was computed. [2020-12-22 06:55:39,623 INFO L192 CegarLoopUtils]: At program point L200-1(lines 200 207) the Hoare annotation is: true [2020-12-22 06:55:39,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:39 BoogieIcfgContainer [2020-12-22 06:55:39,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:39,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:39,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:39,649 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:39,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:36" (3/4) ... [2020-12-22 06:55:39,653 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:55:39,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:55:39,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:55:39,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:55:39,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:55:39,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:55:39,674 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:55:39,674 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:55:39,705 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:55:39,706 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) [2020-12-22 06:55:39,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp == 0 && !(\result == 0)) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((tmp == 0 && waterLevel == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) && 1 == systemActive) [2020-12-22 06:55:39,707 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && !(\result == 0)) && splverifierCounter == 0 [2020-12-22 06:55:39,767 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product34.cil.c-witness.graphml [2020-12-22 06:55:39,767 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:39,769 INFO L168 Benchmark]: Toolchain (without parser) took 5177.55 ms. Allocated memory was 177.2 MB in the beginning and 223.3 MB in the end (delta: 46.1 MB). Free memory was 157.5 MB in the beginning and 167.4 MB in the end (delta: -9.9 MB). Peak memory consumption was 35.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,770 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 177.2 MB. Free memory was 148.3 MB in the beginning and 148.3 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:39,770 INFO L168 Benchmark]: CACSL2BoogieTranslator took 682.84 ms. Allocated memory is still 177.2 MB. Free memory was 157.3 MB in the beginning and 136.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,771 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.10 ms. Allocated memory is still 177.2 MB. Free memory was 136.7 MB in the beginning and 157.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,771 INFO L168 Benchmark]: Boogie Preprocessor took 41.66 ms. Allocated memory is still 177.2 MB. Free memory was 157.3 MB in the beginning and 155.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,772 INFO L168 Benchmark]: RCFGBuilder took 996.64 ms. Allocated memory was 177.2 MB in the beginning and 223.3 MB in the end (delta: 46.1 MB). Free memory was 154.6 MB in the beginning and 192.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 46.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,772 INFO L168 Benchmark]: TraceAbstraction took 3192.72 ms. Allocated memory is still 223.3 MB. Free memory was 192.8 MB in the beginning and 174.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 118.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,772 INFO L168 Benchmark]: Witness Printer took 118.05 ms. Allocated memory is still 223.3 MB. Free memory was 174.7 MB in the beginning and 167.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:39,775 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 177.2 MB. Free memory was 148.3 MB in the beginning and 148.3 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 682.84 ms. Allocated memory is still 177.2 MB. Free memory was 157.3 MB in the beginning and 136.7 MB in the end (delta: 20.5 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 138.10 ms. Allocated memory is still 177.2 MB. Free memory was 136.7 MB in the beginning and 157.3 MB in the end (delta: -20.5 MB). Peak memory consumption was 2.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.66 ms. Allocated memory is still 177.2 MB. Free memory was 157.3 MB in the beginning and 155.0 MB in the end (delta: 2.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 996.64 ms. Allocated memory was 177.2 MB in the beginning and 223.3 MB in the end (delta: 46.1 MB). Free memory was 154.6 MB in the beginning and 192.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 46.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3192.72 ms. Allocated memory is still 223.3 MB. Free memory was 192.8 MB in the beginning and 174.7 MB in the end (delta: 18.1 MB). Peak memory consumption was 118.3 MB. Max. memory is 8.0 GB. * Witness Printer took 118.05 ms. Allocated memory is still 223.3 MB. Free memory was 174.7 MB in the beginning and 167.4 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 788]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 788]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 788]: 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: 863]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: (((((((tmp == 0 && !(\result == 0)) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (((((tmp == 0 && waterLevel == 1) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0)) && 1 == systemActive) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && !(\result == 0)) && splverifierCounter == 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 77]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 236]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((tmp == 0 && !(pumpRunning == 0)) && 1 == systemActive) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 748 SDtfs, 767 SDslu, 993 SDs, 0 SdLazy, 160 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 61 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 315 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 34 PreInvPairs, 99 NumberOfFragments, 448 HoareAnnotationTreeSize, 34 FomulaSimplifications, 8552 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 448 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 12512 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 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...