/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:52,134 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:52,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:52,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:52,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:52,174 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:52,176 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:52,178 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:52,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:52,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:52,184 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:52,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:52,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:52,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:52,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:52,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:52,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:52,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:52,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:52,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:52,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:52,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:52,212 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:52,213 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:52,216 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:52,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:52,221 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:52,222 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:52,223 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:52,225 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:52,225 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:52,226 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:52,226 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:52,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:52,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:52,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:52,231 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:52,258 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:52,259 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:52,260 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:52,260 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:52,261 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:52,261 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:52,261 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:52,261 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:52,262 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:52,262 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:52,262 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:52,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:52,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:52,263 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:52,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:52,263 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:52,263 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:52,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:52,264 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:52,264 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:52,264 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:52,264 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:52,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:52,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:52,265 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:52,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:52,647 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:52,701 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:52,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:52,707 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:52,708 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:52,709 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-12-22 06:56:52,811 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015ed943f/1e4ef97d63ee4be18185382fb3d60050/FLAG68c8ea39f [2020-12-22 06:56:53,513 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:53,516 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c [2020-12-22 06:56:53,542 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015ed943f/1e4ef97d63ee4be18185382fb3d60050/FLAG68c8ea39f [2020-12-22 06:56:53,817 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/015ed943f/1e4ef97d63ee4be18185382fb3d60050 [2020-12-22 06:56:53,821 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:53,823 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:53,828 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:53,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:53,832 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:53,833 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:53" (1/1) ... [2020-12-22 06:56:53,836 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72ae9a4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:53, skipping insertion in model container [2020-12-22 06:56:53,836 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:53" (1/1) ... [2020-12-22 06:56:53,850 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:53,926 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:54,287 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11394,11407] [2020-12-22 06:56:54,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:54,359 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:54,458 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product58.cil.c[11394,11407] [2020-12-22 06:56:54,512 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:54,570 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:54,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54 WrapperNode [2020-12-22 06:56:54,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:54,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:54,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:54,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:54,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,678 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:54,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:54,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:54,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:54,690 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,744 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... [2020-12-22 06:56:54,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:54,751 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:54,751 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:54,751 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:54,752 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:54,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:54,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:54,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:56,130 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:56,131 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2020-12-22 06:56:56,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:56 BoogieIcfgContainer [2020-12-22 06:56:56,133 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:56,136 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:56,136 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:56,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:56,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:53" (1/3) ... [2020-12-22 06:56:56,141 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63be59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:56, skipping insertion in model container [2020-12-22 06:56:56,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:54" (2/3) ... [2020-12-22 06:56:56,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63be59a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:56, skipping insertion in model container [2020-12-22 06:56:56,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:56" (3/3) ... [2020-12-22 06:56:56,144 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product58.cil.c [2020-12-22 06:56:56,151 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:56,156 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:56,176 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:56,205 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:56,205 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:56,206 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:56,206 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:56,206 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:56,206 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:56,206 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:56,207 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states. [2020-12-22 06:56:56,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:56,235 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:56,236 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:56,236 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:56,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:56,243 INFO L82 PathProgramCache]: Analyzing trace with hash 1138467236, now seen corresponding path program 1 times [2020-12-22 06:56:56,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:56,254 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113938661] [2020-12-22 06:56:56,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:56,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:56,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113938661] [2020-12-22 06:56:56,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:56,567 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:56,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970344529] [2020-12-22 06:56:56,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:56,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:56,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:56,594 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:56,596 INFO L87 Difference]: Start difference. First operand 135 states. Second operand 2 states. [2020-12-22 06:56:56,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:56,666 INFO L93 Difference]: Finished difference Result 264 states and 395 transitions. [2020-12-22 06:56:56,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:56,671 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:56,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:56,690 INFO L225 Difference]: With dead ends: 264 [2020-12-22 06:56:56,690 INFO L226 Difference]: Without dead ends: 131 [2020-12-22 06:56:56,694 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:56,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-12-22 06:56:56,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2020-12-22 06:56:56,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2020-12-22 06:56:56,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 189 transitions. [2020-12-22 06:56:56,743 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 189 transitions. Word has length 16 [2020-12-22 06:56:56,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:56,743 INFO L481 AbstractCegarLoop]: Abstraction has 131 states and 189 transitions. [2020-12-22 06:56:56,743 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:56,744 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 189 transitions. [2020-12-22 06:56:56,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:56,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:56,745 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:56,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:56,746 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:56,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:56,747 INFO L82 PathProgramCache]: Analyzing trace with hash 1722273200, now seen corresponding path program 1 times [2020-12-22 06:56:56,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:56,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390276097] [2020-12-22 06:56:56,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:56,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:56,877 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390276097] [2020-12-22 06:56:56,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:56,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:56,878 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155961240] [2020-12-22 06:56:56,880 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:56,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:56,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:56,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:56,882 INFO L87 Difference]: Start difference. First operand 131 states and 189 transitions. Second operand 3 states. [2020-12-22 06:56:56,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:56,915 INFO L93 Difference]: Finished difference Result 131 states and 189 transitions. [2020-12-22 06:56:56,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:56,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:56,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:56,920 INFO L225 Difference]: With dead ends: 131 [2020-12-22 06:56:56,921 INFO L226 Difference]: Without dead ends: 53 [2020-12-22 06:56:56,923 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:56,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-22 06:56:56,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-22 06:56:56,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-22 06:56:56,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 76 transitions. [2020-12-22 06:56:56,939 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 76 transitions. Word has length 17 [2020-12-22 06:56:56,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:56,939 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 76 transitions. [2020-12-22 06:56:56,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:56,940 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 76 transitions. [2020-12-22 06:56:56,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:56,942 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:56,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:56,942 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:56,943 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:56,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:56,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1529505855, now seen corresponding path program 1 times [2020-12-22 06:56:56,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:56,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137738810] [2020-12-22 06:56:56,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:57,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:57,093 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137738810] [2020-12-22 06:56:57,093 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:57,093 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:57,094 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317361394] [2020-12-22 06:56:57,094 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:57,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:57,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:57,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:57,096 INFO L87 Difference]: Start difference. First operand 53 states and 76 transitions. Second operand 3 states. [2020-12-22 06:56:57,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:57,122 INFO L93 Difference]: Finished difference Result 100 states and 146 transitions. [2020-12-22 06:56:57,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:57,124 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 06:56:57,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:57,125 INFO L225 Difference]: With dead ends: 100 [2020-12-22 06:56:57,125 INFO L226 Difference]: Without dead ends: 53 [2020-12-22 06:56:57,127 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:57,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2020-12-22 06:56:57,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2020-12-22 06:56:57,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53 states. [2020-12-22 06:56:57,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 75 transitions. [2020-12-22 06:56:57,141 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 75 transitions. Word has length 22 [2020-12-22 06:56:57,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:57,142 INFO L481 AbstractCegarLoop]: Abstraction has 53 states and 75 transitions. [2020-12-22 06:56:57,142 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:57,142 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 75 transitions. [2020-12-22 06:56:57,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:57,144 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:57,145 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:57,145 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:57,145 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:57,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:57,146 INFO L82 PathProgramCache]: Analyzing trace with hash 583703192, now seen corresponding path program 1 times [2020-12-22 06:56:57,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:57,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831481269] [2020-12-22 06:56:57,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:57,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:57,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:57,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831481269] [2020-12-22 06:56:57,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:57,281 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:57,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042366021] [2020-12-22 06:56:57,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:57,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:57,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:57,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:57,287 INFO L87 Difference]: Start difference. First operand 53 states and 75 transitions. Second operand 3 states. [2020-12-22 06:56:57,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:57,359 INFO L93 Difference]: Finished difference Result 121 states and 174 transitions. [2020-12-22 06:56:57,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:57,360 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:57,363 INFO L225 Difference]: With dead ends: 121 [2020-12-22 06:56:57,363 INFO L226 Difference]: Without dead ends: 74 [2020-12-22 06:56:57,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:57,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-12-22 06:56:57,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 72. [2020-12-22 06:56:57,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-12-22 06:56:57,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 101 transitions. [2020-12-22 06:56:57,383 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 101 transitions. Word has length 24 [2020-12-22 06:56:57,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:57,384 INFO L481 AbstractCegarLoop]: Abstraction has 72 states and 101 transitions. [2020-12-22 06:56:57,384 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:57,384 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 101 transitions. [2020-12-22 06:56:57,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-12-22 06:56:57,385 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:57,385 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:57,386 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:57,386 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:57,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:57,386 INFO L82 PathProgramCache]: Analyzing trace with hash -198690772, now seen corresponding path program 1 times [2020-12-22 06:56:57,387 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:57,388 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758634] [2020-12-22 06:56:57,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:57,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:57,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:57,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758634] [2020-12-22 06:56:57,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:57,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:57,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668740395] [2020-12-22 06:56:57,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:57,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:57,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:57,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:57,549 INFO L87 Difference]: Start difference. First operand 72 states and 101 transitions. Second operand 5 states. [2020-12-22 06:56:57,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:57,741 INFO L93 Difference]: Finished difference Result 253 states and 363 transitions. [2020-12-22 06:56:57,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:57,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-12-22 06:56:57,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:57,743 INFO L225 Difference]: With dead ends: 253 [2020-12-22 06:56:57,743 INFO L226 Difference]: Without dead ends: 187 [2020-12-22 06:56:57,745 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:57,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-12-22 06:56:57,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 115. [2020-12-22 06:56:57,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 06:56:57,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 158 transitions. [2020-12-22 06:56:57,759 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 158 transitions. Word has length 30 [2020-12-22 06:56:57,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:57,759 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 158 transitions. [2020-12-22 06:56:57,759 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:57,759 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 158 transitions. [2020-12-22 06:56:57,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:57,761 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:57,761 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:57,761 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:57,761 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:57,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:57,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2088460330, now seen corresponding path program 1 times [2020-12-22 06:56:57,762 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:57,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509040632] [2020-12-22 06:56:57,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:57,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:57,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:57,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509040632] [2020-12-22 06:56:57,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:57,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:57,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827632579] [2020-12-22 06:56:57,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:57,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:57,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:57,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:57,837 INFO L87 Difference]: Start difference. First operand 115 states and 158 transitions. Second operand 4 states. [2020-12-22 06:56:57,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:57,957 INFO L93 Difference]: Finished difference Result 238 states and 334 transitions. [2020-12-22 06:56:57,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:57,958 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-22 06:56:57,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:57,960 INFO L225 Difference]: With dead ends: 238 [2020-12-22 06:56:57,960 INFO L226 Difference]: Without dead ends: 172 [2020-12-22 06:56:57,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:57,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-12-22 06:56:57,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 169. [2020-12-22 06:56:57,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 06:56:57,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 233 transitions. [2020-12-22 06:56:57,982 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 233 transitions. Word has length 31 [2020-12-22 06:56:57,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:57,982 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 233 transitions. [2020-12-22 06:56:57,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:57,982 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 233 transitions. [2020-12-22 06:56:57,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:57,984 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:57,985 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:57,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:56:57,985 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:57,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:57,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1948341528, now seen corresponding path program 1 times [2020-12-22 06:56:57,989 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:57,989 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028937194] [2020-12-22 06:56:57,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:58,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:58,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:58,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028937194] [2020-12-22 06:56:58,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:58,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:58,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [913654985] [2020-12-22 06:56:58,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:58,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:58,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:58,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:58,102 INFO L87 Difference]: Start difference. First operand 169 states and 233 transitions. Second operand 4 states. [2020-12-22 06:56:58,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:58,179 INFO L93 Difference]: Finished difference Result 473 states and 664 transitions. [2020-12-22 06:56:58,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:58,180 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2020-12-22 06:56:58,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:58,183 INFO L225 Difference]: With dead ends: 473 [2020-12-22 06:56:58,183 INFO L226 Difference]: Without dead ends: 352 [2020-12-22 06:56:58,184 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:58,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2020-12-22 06:56:58,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 169. [2020-12-22 06:56:58,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 169 states. [2020-12-22 06:56:58,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 231 transitions. [2020-12-22 06:56:58,200 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 231 transitions. Word has length 31 [2020-12-22 06:56:58,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:58,200 INFO L481 AbstractCegarLoop]: Abstraction has 169 states and 231 transitions. [2020-12-22 06:56:58,200 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:58,201 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 231 transitions. [2020-12-22 06:56:58,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:56:58,202 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:58,202 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:58,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:56:58,202 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:58,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:58,203 INFO L82 PathProgramCache]: Analyzing trace with hash 1953598758, now seen corresponding path program 1 times [2020-12-22 06:56:58,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:58,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572329889] [2020-12-22 06:56:58,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:58,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:58,263 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572329889] [2020-12-22 06:56:58,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:58,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:58,264 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494904786] [2020-12-22 06:56:58,264 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:58,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:58,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:58,265 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:58,266 INFO L87 Difference]: Start difference. First operand 169 states and 231 transitions. Second operand 5 states. [2020-12-22 06:56:58,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:58,392 INFO L93 Difference]: Finished difference Result 512 states and 712 transitions. [2020-12-22 06:56:58,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:58,393 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:56:58,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:58,396 INFO L225 Difference]: With dead ends: 512 [2020-12-22 06:56:58,396 INFO L226 Difference]: Without dead ends: 349 [2020-12-22 06:56:58,397 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:58,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2020-12-22 06:56:58,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 178. [2020-12-22 06:56:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 178 states. [2020-12-22 06:56:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 238 transitions. [2020-12-22 06:56:58,421 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 238 transitions. Word has length 31 [2020-12-22 06:56:58,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:58,422 INFO L481 AbstractCegarLoop]: Abstraction has 178 states and 238 transitions. [2020-12-22 06:56:58,422 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 238 transitions. [2020-12-22 06:56:58,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:56:58,427 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:58,427 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, 1, 1] [2020-12-22 06:56:58,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:56:58,429 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:58,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:58,429 INFO L82 PathProgramCache]: Analyzing trace with hash 2005513094, now seen corresponding path program 1 times [2020-12-22 06:56:58,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:58,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542358388] [2020-12-22 06:56:58,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:58,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:58,541 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542358388] [2020-12-22 06:56:58,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:58,542 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:58,542 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334729125] [2020-12-22 06:56:58,543 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:58,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:58,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:58,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:58,547 INFO L87 Difference]: Start difference. First operand 178 states and 238 transitions. Second operand 6 states. [2020-12-22 06:56:58,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:58,784 INFO L93 Difference]: Finished difference Result 912 states and 1223 transitions. [2020-12-22 06:56:58,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:56:58,785 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-12-22 06:56:58,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:58,789 INFO L225 Difference]: With dead ends: 912 [2020-12-22 06:56:58,789 INFO L226 Difference]: Without dead ends: 740 [2020-12-22 06:56:58,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:56:58,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2020-12-22 06:56:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 338. [2020-12-22 06:56:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 338 states. [2020-12-22 06:56:58,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 338 states to 338 states and 445 transitions. [2020-12-22 06:56:58,877 INFO L78 Accepts]: Start accepts. Automaton has 338 states and 445 transitions. Word has length 34 [2020-12-22 06:56:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:58,879 INFO L481 AbstractCegarLoop]: Abstraction has 338 states and 445 transitions. [2020-12-22 06:56:58,879 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:58,879 INFO L276 IsEmpty]: Start isEmpty. Operand 338 states and 445 transitions. [2020-12-22 06:56:58,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-12-22 06:56:58,885 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:58,885 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, 1, 1] [2020-12-22 06:56:58,885 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:56:58,885 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:58,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:58,886 INFO L82 PathProgramCache]: Analyzing trace with hash -514446840, now seen corresponding path program 1 times [2020-12-22 06:56:58,886 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:58,886 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048832662] [2020-12-22 06:56:58,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:58,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:58,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048832662] [2020-12-22 06:56:58,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:58,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:58,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700036107] [2020-12-22 06:56:58,995 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:58,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:58,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:58,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:58,996 INFO L87 Difference]: Start difference. First operand 338 states and 445 transitions. Second operand 5 states. [2020-12-22 06:56:59,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:59,231 INFO L93 Difference]: Finished difference Result 752 states and 993 transitions. [2020-12-22 06:56:59,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:59,232 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-12-22 06:56:59,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:59,235 INFO L225 Difference]: With dead ends: 752 [2020-12-22 06:56:59,235 INFO L226 Difference]: Without dead ends: 510 [2020-12-22 06:56:59,236 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:59,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-12-22 06:56:59,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 332. [2020-12-22 06:56:59,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-22 06:56:59,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 433 transitions. [2020-12-22 06:56:59,276 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 433 transitions. Word has length 34 [2020-12-22 06:56:59,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:59,276 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 433 transitions. [2020-12-22 06:56:59,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 433 transitions. [2020-12-22 06:56:59,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 06:56:59,277 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:59,277 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:59,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:56:59,278 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:59,278 INFO L82 PathProgramCache]: Analyzing trace with hash 121178437, now seen corresponding path program 1 times [2020-12-22 06:56:59,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:59,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400589318] [2020-12-22 06:56:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:59,341 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 06:56:59,341 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400589318] [2020-12-22 06:56:59,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:59,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:59,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80332755] [2020-12-22 06:56:59,342 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:59,342 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:59,343 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:59,343 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:59,343 INFO L87 Difference]: Start difference. First operand 332 states and 433 transitions. Second operand 5 states. [2020-12-22 06:56:59,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:59,469 INFO L93 Difference]: Finished difference Result 753 states and 985 transitions. [2020-12-22 06:56:59,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:59,470 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 53 [2020-12-22 06:56:59,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:59,473 INFO L225 Difference]: With dead ends: 753 [2020-12-22 06:56:59,473 INFO L226 Difference]: Without dead ends: 427 [2020-12-22 06:56:59,474 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:59,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-12-22 06:56:59,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 332. [2020-12-22 06:56:59,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 332 states. [2020-12-22 06:56:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 427 transitions. [2020-12-22 06:56:59,512 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 427 transitions. Word has length 53 [2020-12-22 06:56:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:59,512 INFO L481 AbstractCegarLoop]: Abstraction has 332 states and 427 transitions. [2020-12-22 06:56:59,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 427 transitions. [2020-12-22 06:56:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-12-22 06:56:59,513 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:59,513 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:59,514 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:56:59,514 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:59,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:59,514 INFO L82 PathProgramCache]: Analyzing trace with hash 48791879, now seen corresponding path program 1 times [2020-12-22 06:56:59,515 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:59,515 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732492729] [2020-12-22 06:56:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:59,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:59,615 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-22 06:56:59,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732492729] [2020-12-22 06:56:59,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:59,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:56:59,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739641783] [2020-12-22 06:56:59,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:59,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:59,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:59,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:56:59,618 INFO L87 Difference]: Start difference. First operand 332 states and 427 transitions. Second operand 4 states. [2020-12-22 06:56:59,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:59,715 INFO L93 Difference]: Finished difference Result 676 states and 879 transitions. [2020-12-22 06:56:59,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:59,717 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-12-22 06:56:59,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:59,719 INFO L225 Difference]: With dead ends: 676 [2020-12-22 06:56:59,719 INFO L226 Difference]: Without dead ends: 350 [2020-12-22 06:56:59,720 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:59,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-12-22 06:56:59,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 266. [2020-12-22 06:56:59,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-12-22 06:56:59,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 341 transitions. [2020-12-22 06:56:59,753 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 341 transitions. Word has length 53 [2020-12-22 06:56:59,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:59,754 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 341 transitions. [2020-12-22 06:56:59,754 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:59,754 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 341 transitions. [2020-12-22 06:56:59,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:56:59,755 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:59,755 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:59,755 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-22 06:56:59,755 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:59,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:59,756 INFO L82 PathProgramCache]: Analyzing trace with hash -516506869, now seen corresponding path program 1 times [2020-12-22 06:56:59,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:59,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478721360] [2020-12-22 06:56:59,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:59,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:59,832 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:56:59,832 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478721360] [2020-12-22 06:56:59,832 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:59,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:59,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121601635] [2020-12-22 06:56:59,833 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:59,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:59,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:59,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:59,835 INFO L87 Difference]: Start difference. First operand 266 states and 341 transitions. Second operand 5 states. [2020-12-22 06:56:59,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:59,968 INFO L93 Difference]: Finished difference Result 878 states and 1149 transitions. [2020-12-22 06:56:59,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:59,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 06:56:59,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:59,973 INFO L225 Difference]: With dead ends: 878 [2020-12-22 06:56:59,973 INFO L226 Difference]: Without dead ends: 666 [2020-12-22 06:56:59,979 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:59,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2020-12-22 06:57:00,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 272. [2020-12-22 06:57:00,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-12-22 06:57:00,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 347 transitions. [2020-12-22 06:57:00,017 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 347 transitions. Word has length 54 [2020-12-22 06:57:00,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:57:00,018 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 347 transitions. [2020-12-22 06:57:00,018 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:57:00,018 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 347 transitions. [2020-12-22 06:57:00,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-12-22 06:57:00,019 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:57:00,019 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:57:00,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-22 06:57:00,020 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:57:00,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:57:00,020 INFO L82 PathProgramCache]: Analyzing trace with hash -909533879, now seen corresponding path program 1 times [2020-12-22 06:57:00,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:57:00,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357278491] [2020-12-22 06:57:00,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:57:00,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:57:00,107 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:57:00,107 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357278491] [2020-12-22 06:57:00,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:57:00,108 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:57:00,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940494910] [2020-12-22 06:57:00,108 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:57:00,109 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:57:00,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:57:00,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:57:00,109 INFO L87 Difference]: Start difference. First operand 272 states and 347 transitions. Second operand 5 states. [2020-12-22 06:57:00,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:57:00,360 INFO L93 Difference]: Finished difference Result 708 states and 904 transitions. [2020-12-22 06:57:00,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:57:00,361 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-12-22 06:57:00,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:57:00,365 INFO L225 Difference]: With dead ends: 708 [2020-12-22 06:57:00,365 INFO L226 Difference]: Without dead ends: 706 [2020-12-22 06:57:00,366 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:57:00,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 706 states. [2020-12-22 06:57:00,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 706 to 272. [2020-12-22 06:57:00,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-12-22 06:57:00,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 345 transitions. [2020-12-22 06:57:00,405 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 345 transitions. Word has length 54 [2020-12-22 06:57:00,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:57:00,406 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 345 transitions. [2020-12-22 06:57:00,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:57:00,406 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 345 transitions. [2020-12-22 06:57:00,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-22 06:57:00,407 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:57:00,407 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:57:00,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-22 06:57:00,408 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:57:00,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:57:00,408 INFO L82 PathProgramCache]: Analyzing trace with hash 473466575, now seen corresponding path program 1 times [2020-12-22 06:57:00,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:57:00,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590607977] [2020-12-22 06:57:00,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:57:00,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:57:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:57:00,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1590607977] [2020-12-22 06:57:00,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269255359] [2020-12-22 06:57:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:57:00,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:57:00,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-22 06:57:00,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:57:00,911 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:57:00,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-12-22 06:57:00,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-12-22 06:57:00,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1662458886] [2020-12-22 06:57:00,915 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:57:00,915 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:57:00,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:57:00,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:57:00,917 INFO L87 Difference]: Start difference. First operand 272 states and 345 transitions. Second operand 6 states. [2020-12-22 06:57:01,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:57:01,287 INFO L93 Difference]: Finished difference Result 855 states and 1102 transitions. [2020-12-22 06:57:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:57:01,288 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-12-22 06:57:01,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:57:01,291 INFO L225 Difference]: With dead ends: 855 [2020-12-22 06:57:01,292 INFO L226 Difference]: Without dead ends: 637 [2020-12-22 06:57:01,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:57:01,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 637 states. [2020-12-22 06:57:01,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 637 to 386. [2020-12-22 06:57:01,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 386 states. [2020-12-22 06:57:01,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 495 transitions. [2020-12-22 06:57:01,349 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 495 transitions. Word has length 55 [2020-12-22 06:57:01,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:57:01,349 INFO L481 AbstractCegarLoop]: Abstraction has 386 states and 495 transitions. [2020-12-22 06:57:01,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:57:01,349 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 495 transitions. [2020-12-22 06:57:01,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 06:57:01,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:57:01,351 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:57:01,564 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-12-22 06:57:01,565 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:57:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:57:01,566 INFO L82 PathProgramCache]: Analyzing trace with hash -2086945688, now seen corresponding path program 2 times [2020-12-22 06:57:01,567 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:57:01,567 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752948329] [2020-12-22 06:57:01,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:57:01,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:57:01,691 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-12-22 06:57:01,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752948329] [2020-12-22 06:57:01,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:57:01,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:57:01,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440375119] [2020-12-22 06:57:01,692 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:57:01,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:57:01,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:57:01,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:57:01,693 INFO L87 Difference]: Start difference. First operand 386 states and 495 transitions. Second operand 5 states. [2020-12-22 06:57:02,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:57:02,406 INFO L93 Difference]: Finished difference Result 1180 states and 1538 transitions. [2020-12-22 06:57:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:57:02,407 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-12-22 06:57:02,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:57:02,411 INFO L225 Difference]: With dead ends: 1180 [2020-12-22 06:57:02,412 INFO L226 Difference]: Without dead ends: 846 [2020-12-22 06:57:02,413 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:57:02,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 846 states. [2020-12-22 06:57:02,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 846 to 532. [2020-12-22 06:57:02,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 532 states. [2020-12-22 06:57:02,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 532 states to 532 states and 679 transitions. [2020-12-22 06:57:02,501 INFO L78 Accepts]: Start accepts. Automaton has 532 states and 679 transitions. Word has length 76 [2020-12-22 06:57:02,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:57:02,501 INFO L481 AbstractCegarLoop]: Abstraction has 532 states and 679 transitions. [2020-12-22 06:57:02,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:57:02,501 INFO L276 IsEmpty]: Start isEmpty. Operand 532 states and 679 transitions. [2020-12-22 06:57:02,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-22 06:57:02,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:57:02,503 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:57:02,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-22 06:57:02,503 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:57:02,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:57:02,504 INFO L82 PathProgramCache]: Analyzing trace with hash -1812186074, now seen corresponding path program 1 times [2020-12-22 06:57:02,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:57:02,504 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292973827] [2020-12-22 06:57:02,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:57:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:57:02,571 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-12-22 06:57:02,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292973827] [2020-12-22 06:57:02,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [354040853] [2020-12-22 06:57:02,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:57:02,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:57:02,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-22 06:57:02,741 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:57:02,835 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-12-22 06:57:02,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:57:02,836 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-12-22 06:57:02,836 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159206032] [2020-12-22 06:57:02,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:57:02,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:57:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:57:02,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:57:02,837 INFO L87 Difference]: Start difference. First operand 532 states and 679 transitions. Second operand 5 states. [2020-12-22 06:57:02,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:57:02,966 INFO L93 Difference]: Finished difference Result 934 states and 1186 transitions. [2020-12-22 06:57:02,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:57:02,967 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-12-22 06:57:02,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:57:02,967 INFO L225 Difference]: With dead ends: 934 [2020-12-22 06:57:02,967 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:57:02,969 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-12-22 06:57:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:57:02,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:57:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:57:02,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:57:02,969 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-12-22 06:57:02,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:57:02,970 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:57:02,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:57:02,970 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:57:02,970 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:57:03,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-12-22 06:57:03,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:57:04,231 WARN L197 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 284 DAG size of output: 253 [2020-12-22 06:57:04,529 WARN L197 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 143 [2020-12-22 06:57:05,112 WARN L197 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 222 [2020-12-22 06:57:05,804 WARN L197 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 234 [2020-12-22 06:57:06,582 WARN L197 SmtUtils]: Spent 775.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-12-22 06:57:06,828 WARN L197 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 140 [2020-12-22 06:57:07,404 WARN L197 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 256 [2020-12-22 06:57:07,610 WARN L197 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 167 [2020-12-22 06:57:07,768 WARN L197 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 140 [2020-12-22 06:57:10,025 WARN L197 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 247 DAG size of output: 29 [2020-12-22 06:57:10,387 WARN L197 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 22 [2020-12-22 06:57:11,127 WARN L197 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 23 [2020-12-22 06:57:11,403 WARN L197 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 24 [2020-12-22 06:57:13,098 WARN L197 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 220 DAG size of output: 29 [2020-12-22 06:57:15,203 WARN L197 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 232 DAG size of output: 22 [2020-12-22 06:57:17,677 WARN L197 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-12-22 06:57:18,240 WARN L197 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 32 [2020-12-22 06:57:20,681 WARN L197 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 251 DAG size of output: 21 [2020-12-22 06:57:21,677 WARN L197 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 40 [2020-12-22 06:57:22,396 WARN L197 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 31 [2020-12-22 06:57:22,631 WARN L197 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 16 [2020-12-22 06:57:22,933 WARN L197 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 24 [2020-12-22 06:57:22,939 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2020-12-22 06:57:22,939 INFO L189 CegarLoopUtils]: For program point L930(lines 929 976) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L798(lines 798 804) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L765(lines 765 773) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L798-2(lines 798 804) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L765-1(lines 765 773) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L765-2(lines 765 773) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L798-4(lines 798 804) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L798-6(lines 798 804) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L798-8(lines 798 804) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L798-10(lines 798 804) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L189 CegarLoopUtils]: For program point L931(lines 931 935) no Hoare annotation was computed. [2020-12-22 06:57:22,940 INFO L185 CegarLoopUtils]: At program point L832(lines 827 835) the Hoare annotation is: false [2020-12-22 06:57:22,941 INFO L185 CegarLoopUtils]: At program point L832-1(lines 827 835) the Hoare annotation is: false [2020-12-22 06:57:22,941 INFO L185 CegarLoopUtils]: At program point L832-2(lines 827 835) the Hoare annotation is: false [2020-12-22 06:57:22,941 INFO L185 CegarLoopUtils]: At program point L568-2(lines 568 582) the Hoare annotation is: false [2020-12-22 06:57:22,941 INFO L189 CegarLoopUtils]: For program point L569(line 569) no Hoare annotation was computed. [2020-12-22 06:57:22,941 INFO L189 CegarLoopUtils]: For program point L536(lines 536 542) no Hoare annotation was computed. [2020-12-22 06:57:22,941 INFO L189 CegarLoopUtils]: For program point L536-1(lines 536 542) no Hoare annotation was computed. [2020-12-22 06:57:22,941 INFO L189 CegarLoopUtils]: For program point L536-2(lines 536 542) no Hoare annotation was computed. [2020-12-22 06:57:22,941 INFO L189 CegarLoopUtils]: For program point L536-3(lines 536 542) no Hoare annotation was computed. [2020-12-22 06:57:22,943 INFO L189 CegarLoopUtils]: For program point L536-4(lines 536 542) no Hoare annotation was computed. [2020-12-22 06:57:22,943 INFO L189 CegarLoopUtils]: For program point L536-5(lines 536 542) no Hoare annotation was computed. [2020-12-22 06:57:22,943 INFO L189 CegarLoopUtils]: For program point L900(lines 900 904) no Hoare annotation was computed. [2020-12-22 06:57:22,943 INFO L189 CegarLoopUtils]: For program point L900-2(lines 900 904) no Hoare annotation was computed. [2020-12-22 06:57:22,943 INFO L189 CegarLoopUtils]: For program point L900-3(lines 900 904) no Hoare annotation was computed. [2020-12-22 06:57:22,944 INFO L189 CegarLoopUtils]: For program point L735(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:57:22,944 INFO L189 CegarLoopUtils]: For program point L900-5(lines 900 904) no Hoare annotation was computed. [2020-12-22 06:57:22,944 INFO L189 CegarLoopUtils]: For program point L735-1(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:57:22,944 INFO L189 CegarLoopUtils]: For program point L900-6(lines 900 904) no Hoare annotation was computed. [2020-12-22 06:57:22,944 INFO L189 CegarLoopUtils]: For program point L735-2(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:57:22,944 INFO L189 CegarLoopUtils]: For program point L735-3(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:57:22,945 INFO L189 CegarLoopUtils]: For program point L900-8(lines 900 904) no Hoare annotation was computed. [2020-12-22 06:57:22,945 INFO L189 CegarLoopUtils]: For program point L735-4(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:57:22,945 INFO L189 CegarLoopUtils]: For program point L735-5(lines 735 752) no Hoare annotation was computed. [2020-12-22 06:57:22,946 INFO L189 CegarLoopUtils]: For program point L471(lines 471 475) no Hoare annotation was computed. [2020-12-22 06:57:22,946 INFO L189 CegarLoopUtils]: For program point L967(lines 967 971) no Hoare annotation was computed. [2020-12-22 06:57:22,946 INFO L185 CegarLoopUtils]: At program point L967-2(lines 703 709) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2020-12-22 06:57:22,946 INFO L185 CegarLoopUtils]: At program point L703(lines 702 721) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse2 (<= 1 ~waterLevel~0)))) [2020-12-22 06:57:22,946 INFO L189 CegarLoopUtils]: For program point L703-1(lines 703 709) no Hoare annotation was computed. [2020-12-22 06:57:22,946 INFO L185 CegarLoopUtils]: At program point L703-2(lines 702 721) the Hoare annotation is: false [2020-12-22 06:57:22,946 INFO L185 CegarLoopUtils]: At program point L703-3(lines 702 721) the Hoare annotation is: false [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L572(lines 572 576) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L572-1(lines 703 709) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L441(line 441) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L441-1(line 441) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L441-2(line 441) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L739(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L739-1(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L739-2(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L739-3(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:57:22,947 INFO L189 CegarLoopUtils]: For program point L739-4(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:57:22,948 INFO L189 CegarLoopUtils]: For program point L739-5(lines 739 747) no Hoare annotation was computed. [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L541(lines 532 545) the Hoare annotation is: false [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L541-1(lines 532 545) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2))) [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L541-2(lines 532 545) the Hoare annotation is: false [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L541-3(lines 532 545) the Hoare annotation is: false [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L541-4(lines 532 545) the Hoare annotation is: false [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L541-5(lines 532 545) the Hoare annotation is: false [2020-12-22 06:57:22,948 INFO L189 CegarLoopUtils]: For program point L939(lines 939 945) no Hoare annotation was computed. [2020-12-22 06:57:22,948 INFO L185 CegarLoopUtils]: At program point L939-1(lines 939 945) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse1 .cse2) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse4 .cse2))) [2020-12-22 06:57:22,949 INFO L185 CegarLoopUtils]: At program point L906(lines 891 909) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp~9 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ULTIMATE.start_isLowWaterLevel_~tmp___0~2) (<= 1 |ULTIMATE.start_isLowWaterLevel_#res|) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:57:22,949 INFO L185 CegarLoopUtils]: At program point L906-1(lines 891 909) the Hoare annotation is: false [2020-12-22 06:57:22,949 INFO L185 CegarLoopUtils]: At program point L906-2(lines 891 909) the Hoare annotation is: false [2020-12-22 06:57:22,949 INFO L185 CegarLoopUtils]: At program point L710(lines 710 716) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:57:22,949 INFO L185 CegarLoopUtils]: At program point L710-1(lines 710 716) the Hoare annotation is: false [2020-12-22 06:57:22,949 INFO L189 CegarLoopUtils]: For program point L644(lines 644 651) no Hoare annotation was computed. [2020-12-22 06:57:22,949 INFO L185 CegarLoopUtils]: At program point L710-2(lines 710 716) the Hoare annotation is: false [2020-12-22 06:57:22,950 INFO L192 CegarLoopUtils]: At program point L644-1(lines 644 651) the Hoare annotation is: true [2020-12-22 06:57:22,950 INFO L185 CegarLoopUtils]: At program point L977(lines 928 978) the Hoare annotation is: false [2020-12-22 06:57:22,950 INFO L185 CegarLoopUtils]: At program point L680(lines 1 984) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point L483(lines 483 487) no Hoare annotation was computed. [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point L881(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point L881-2(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point L881-3(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point L881-5(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,950 INFO L189 CegarLoopUtils]: For program point L881-6(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,951 INFO L185 CegarLoopUtils]: At program point L617(lines 613 619) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-12-22 06:57:22,951 INFO L189 CegarLoopUtils]: For program point L881-8(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,951 INFO L189 CegarLoopUtils]: For program point L881-9(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,951 INFO L185 CegarLoopUtils]: At program point L551(lines 546 554) the Hoare annotation is: (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:57:22,951 INFO L185 CegarLoopUtils]: At program point L551-1(lines 546 554) the Hoare annotation is: false [2020-12-22 06:57:22,951 INFO L189 CegarLoopUtils]: For program point L881-11(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,951 INFO L185 CegarLoopUtils]: At program point L551-2(lines 546 554) the Hoare annotation is: false [2020-12-22 06:57:22,951 INFO L189 CegarLoopUtils]: For program point L881-12(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,951 INFO L189 CegarLoopUtils]: For program point L419(lines 419 432) no Hoare annotation was computed. [2020-12-22 06:57:22,951 INFO L189 CegarLoopUtils]: For program point L881-14(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,952 INFO L185 CegarLoopUtils]: At program point L419-1(lines 1 984) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and (= ~waterLevel~0 1) (= ~methaneLevelCritical~0 0) .cse0 .cse1 .cse2) (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~3) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2020-12-22 06:57:22,952 INFO L189 CegarLoopUtils]: For program point L881-15(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,952 INFO L189 CegarLoopUtils]: For program point L419-2(lines 419 432) no Hoare annotation was computed. [2020-12-22 06:57:22,952 INFO L185 CegarLoopUtils]: At program point L419-3(lines 1 984) the Hoare annotation is: false [2020-12-22 06:57:22,952 INFO L189 CegarLoopUtils]: For program point L881-17(lines 881 885) no Hoare annotation was computed. [2020-12-22 06:57:22,952 INFO L189 CegarLoopUtils]: For program point L419-4(lines 419 432) no Hoare annotation was computed. [2020-12-22 06:57:22,952 INFO L185 CegarLoopUtils]: At program point L419-5(lines 1 984) the Hoare annotation is: false [2020-12-22 06:57:22,952 INFO L189 CegarLoopUtils]: For program point L949(lines 949 955) no Hoare annotation was computed. [2020-12-22 06:57:22,952 INFO L185 CegarLoopUtils]: At program point L949-1(lines 949 955) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse0 (= 1 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and (= ULTIMATE.start_activatePump_~tmp~7 0) .cse0 .cse1 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse3))) [2020-12-22 06:57:22,952 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:57:22,953 INFO L192 CegarLoopUtils]: At program point L653(lines 634 656) the Hoare annotation is: true [2020-12-22 06:57:22,953 INFO L189 CegarLoopUtils]: For program point L423(lines 423 429) no Hoare annotation was computed. [2020-12-22 06:57:22,953 INFO L189 CegarLoopUtils]: For program point L423-2(lines 423 429) no Hoare annotation was computed. [2020-12-22 06:57:22,953 INFO L189 CegarLoopUtils]: For program point L423-4(lines 423 429) no Hoare annotation was computed. [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L688(lines 683 691) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 0)) [2020-12-22 06:57:22,953 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L887(lines 872 890) the Hoare annotation is: false [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L887-1(lines 872 890) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 1) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 (<= 1 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1)) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)))) [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L887-2(lines 872 890) the Hoare annotation is: false [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L887-3(lines 872 890) the Hoare annotation is: false [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L887-4(lines 872 890) the Hoare annotation is: false [2020-12-22 06:57:22,953 INFO L185 CegarLoopUtils]: At program point L887-5(lines 872 890) the Hoare annotation is: false [2020-12-22 06:57:22,953 INFO L189 CegarLoopUtils]: For program point L459(lines 459 463) no Hoare annotation was computed. [2020-12-22 06:57:22,954 INFO L189 CegarLoopUtils]: For program point L459-3(lines 459 463) no Hoare annotation was computed. [2020-12-22 06:57:22,954 INFO L189 CegarLoopUtils]: For program point L459-6(lines 459 463) no Hoare annotation was computed. [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L823(lines 816 826) the Hoare annotation is: false [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L823-1(lines 816 826) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L823-2(lines 816 826) the Hoare annotation is: false [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L823-3(lines 816 826) the Hoare annotation is: false [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L823-4(lines 816 826) the Hoare annotation is: false [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L823-5(lines 816 826) the Hoare annotation is: false [2020-12-22 06:57:22,954 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:57:22,954 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 441) no Hoare annotation was computed. [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L528(lines 523 531) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ULTIMATE.start_activatePump_~tmp~7 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) (and .cse0 (= ~pumpRunning~0 0) .cse1 (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-12-22 06:57:22,954 INFO L185 CegarLoopUtils]: At program point L528-1(lines 523 531) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L528-2(lines 523 531) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L496(lines 491 499) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L496-1(lines 491 499) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_isHighWaterLevel_#res| 1) (<= 2 ~waterLevel~0) (= ULTIMATE.start_processEnvironment__wrappee__highWaterSensor_~tmp~5 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~8 0)) [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L496-2(lines 491 499) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L496-3(lines 491 499) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L496-4(lines 491 499) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L185 CegarLoopUtils]: At program point L496-5(lines 491 499) the Hoare annotation is: false [2020-12-22 06:57:22,955 INFO L189 CegarLoopUtils]: For program point L959(lines 959 972) no Hoare annotation was computed. [2020-12-22 06:57:22,955 INFO L189 CegarLoopUtils]: For program point L761(lines 761 778) no Hoare annotation was computed. [2020-12-22 06:57:22,955 INFO L189 CegarLoopUtils]: For program point L761-1(lines 761 778) no Hoare annotation was computed. [2020-12-22 06:57:22,955 INFO L189 CegarLoopUtils]: For program point L761-2(lines 761 778) no Hoare annotation was computed. [2020-12-22 06:57:22,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:57:22 BoogieIcfgContainer [2020-12-22 06:57:22,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:57:22,986 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:57:22,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:57:22,986 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:57:22,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:56" (3/4) ... [2020-12-22 06:57:22,991 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:57:23,016 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:57:23,018 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:57:23,019 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:57:23,020 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:57:23,022 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:57:23,023 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:57:23,024 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:57:23,055 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) [2020-12-22 06:57:23,056 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) [2020-12-22 06:57:23,057 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:57:23,058 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) [2020-12-22 06:57:23,059 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-12-22 06:57:23,060 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:57:23,060 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel [2020-12-22 06:57:23,061 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) [2020-12-22 06:57:23,063 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2020-12-22 06:57:23,063 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 [2020-12-22 06:57:23,152 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product58.cil.c-witness.graphml [2020-12-22 06:57:23,152 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:57:23,154 INFO L168 Benchmark]: Toolchain (without parser) took 29330.63 ms. Allocated memory was 155.2 MB in the beginning and 407.9 MB in the end (delta: 252.7 MB). Free memory was 129.5 MB in the beginning and 361.5 MB in the end (delta: -231.9 MB). Peak memory consumption was 21.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,154 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:57:23,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.18 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 107.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,155 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.11 ms. Allocated memory is still 155.2 MB. Free memory was 107.2 MB in the beginning and 103.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,155 INFO L168 Benchmark]: Boogie Preprocessor took 70.89 ms. Allocated memory is still 155.2 MB. Free memory was 103.1 MB in the beginning and 135.5 MB in the end (delta: -32.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,155 INFO L168 Benchmark]: RCFGBuilder took 1382.93 ms. Allocated memory is still 155.2 MB. Free memory was 135.5 MB in the beginning and 66.8 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,156 INFO L168 Benchmark]: TraceAbstraction took 26849.64 ms. Allocated memory was 155.2 MB in the beginning and 407.9 MB in the end (delta: 252.7 MB). Free memory was 66.3 MB in the beginning and 373.5 MB in the end (delta: -307.2 MB). Peak memory consumption was 185.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,156 INFO L168 Benchmark]: Witness Printer took 166.87 ms. Allocated memory is still 407.9 MB. Free memory was 373.0 MB in the beginning and 361.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:57:23,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 155.2 MB. Free memory is still 127.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 743.18 ms. Allocated memory is still 155.2 MB. Free memory was 129.3 MB in the beginning and 107.2 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.11 ms. Allocated memory is still 155.2 MB. Free memory was 107.2 MB in the beginning and 103.1 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 70.89 ms. Allocated memory is still 155.2 MB. Free memory was 103.1 MB in the beginning and 135.5 MB in the end (delta: -32.4 MB). Peak memory consumption was 7.8 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1382.93 ms. Allocated memory is still 155.2 MB. Free memory was 135.5 MB in the beginning and 66.8 MB in the end (delta: 68.6 MB). Peak memory consumption was 68.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26849.64 ms. Allocated memory was 155.2 MB in the beginning and 407.9 MB in the end (delta: 252.7 MB). Free memory was 66.3 MB in the beginning and 373.5 MB in the end (delta: -307.2 MB). Peak memory consumption was 185.7 MB. Max. memory is 8.0 GB. * Witness Printer took 166.87 ms. Allocated memory is still 407.9 MB. Free memory was 373.0 MB in the beginning and 361.5 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 441]: 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: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 939]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) || (((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0)) || (((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result)) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && 1 == systemActive) && tmp == 0) && \result == 0) && 1 <= tmp___0) && 1 <= \result) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 532]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - InvariantResult [Line: 816]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 928]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: ((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 710]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 568]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || (((tmp == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= \result) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) || ((((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((tmp == 0 && 1 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 634]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((1 <= tmp && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && 1 <= \result) || ((((waterLevel == 1 && methaneLevelCritical == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0)) || ((((((((((tmp == 0 && \result == 0) && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && 2 <= \result) && tmp == 1) && splverifierCounter == 0) && tmp___0 == 1) && 2 <= tmp) && tmp == 0) - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: (((((((tmp___0 == 0 && tmp == 1) && 1 == systemActive) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) || (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 613]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && methaneLevelCritical == 0) && pumpRunning == 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 891]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((tmp == 0 && 1 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: (((((((\result == 0 && 1 == systemActive) && \result == 1) && 2 <= waterLevel) && tmp == 1) && pumpRunning == 0) && splverifierCounter == 0) && tmp___0 == 1) && tmp == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 135 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.9s, OverallIterations: 17, TraceHistogramMax: 3, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 19.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1946 SDtfs, 2841 SDslu, 3298 SDs, 0 SdLazy, 463 SolverSat, 84 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 255 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=532occurred in iteration=16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 2583 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 55 PreInvPairs, 215 NumberOfFragments, 601 HoareAnnotationTreeSize, 55 FomulaSimplifications, 20504852 FormulaSimplificationTreeSizeReduction, 4.6s HoareSimplificationTime, 55 FomulaSimplificationsInter, 4158415 FormulaSimplificationTreeSizeReductionInter, 15.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 822 NumberOfCodeBlocks, 822 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 803 ConstructedInterpolants, 0 QuantifiedInterpolants, 61794 SizeOfPredicates, 6 NumberOfNonLiveVariables, 941 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 223/231 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...