/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_spec2_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:54:34,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:54:34,495 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:54:34,553 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:54:34,554 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:54:34,559 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:54:34,562 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:54:34,570 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:54:34,574 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:54:34,580 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:54:34,581 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:54:34,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:54:34,583 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:54:34,587 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:54:34,589 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:54:34,591 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:54:34,592 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:54:34,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:54:34,605 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:54:34,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:54:34,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:54:34,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:54:34,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:54:34,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:54:34,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:54:34,655 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:54:34,655 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:54:34,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:54:34,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:54:34,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:54:34,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:54:34,668 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:54:34,668 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:54:34,668 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:54:34,669 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:54:34,670 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:54:34,675 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:54:34,722 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:54:34,722 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:54:34,724 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:54:34,724 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:54:34,724 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:54:34,725 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:54:34,725 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:54:34,725 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:54:34,725 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:54:34,726 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:54:34,726 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:54:34,726 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:54:34,726 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:54:34,727 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:54:34,727 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:54:34,727 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:54:34,727 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:54:34,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:54:34,728 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:54:34,728 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:54:34,728 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:54:34,728 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:54:34,729 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:54:34,729 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:54:34,729 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:54:34,729 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:54:35,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:54:35,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:54:35,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:54:35,163 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:54:35,163 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:54:35,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-12-22 06:54:35,264 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996c8b6ef/cc6b575f00d742449e2018e1d0e01364/FLAG57f7a7444 [2020-12-22 06:54:35,937 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:54:35,938 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2020-12-22 06:54:35,958 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996c8b6ef/cc6b575f00d742449e2018e1d0e01364/FLAG57f7a7444 [2020-12-22 06:54:36,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/996c8b6ef/cc6b575f00d742449e2018e1d0e01364 [2020-12-22 06:54:36,245 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:54:36,247 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:54:36,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:36,251 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:54:36,259 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:54:36,260 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:36,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d2430bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36, skipping insertion in model container [2020-12-22 06:54:36,262 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:36,276 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:54:36,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:54:36,676 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_spec2_product35.cil.c[15445,15458] [2020-12-22 06:54:36,694 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:36,707 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:54:36,801 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_spec2_product35.cil.c[15445,15458] [2020-12-22 06:54:36,825 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:54:36,878 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:54:36,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36 WrapperNode [2020-12-22 06:54:36,879 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:54:36,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:36,881 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:54:36,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:54:36,890 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:36,950 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,010 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:54:37,011 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:54:37,011 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:54:37,011 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:54:37,021 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,022 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (1/1) ... [2020-12-22 06:54:37,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:54:37,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:54:37,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:54:37,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:54:37,056 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (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 06:54:37,176 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:54:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:54:37,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:54:37,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:54:38,284 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:54:38,285 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2020-12-22 06:54:38,287 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:38 BoogieIcfgContainer [2020-12-22 06:54:38,287 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:54:38,289 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:54:38,289 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:54:38,293 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:54:38,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:54:36" (1/3) ... [2020-12-22 06:54:38,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577755d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:38, skipping insertion in model container [2020-12-22 06:54:38,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:54:36" (2/3) ... [2020-12-22 06:54:38,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577755d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:54:38, skipping insertion in model container [2020-12-22 06:54:38,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:38" (3/3) ... [2020-12-22 06:54:38,297 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2020-12-22 06:54:38,303 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:54:38,308 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:54:38,342 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:54:38,368 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:54:38,369 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:54:38,369 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:54:38,369 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:54:38,369 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:54:38,369 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:54:38,369 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:54:38,369 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:54:38,388 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-22 06:54:38,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:54:38,395 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:38,396 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:38,397 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:38,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:38,404 INFO L82 PathProgramCache]: Analyzing trace with hash -1673386384, now seen corresponding path program 1 times [2020-12-22 06:54:38,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:38,414 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822552399] [2020-12-22 06:54:38,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:38,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:38,720 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 06:54:38,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822552399] [2020-12-22 06:54:38,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:38,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:38,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112391870] [2020-12-22 06:54:38,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:54:38,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:38,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:54:38,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:54:38,760 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-12-22 06:54:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:38,817 INFO L93 Difference]: Finished difference Result 161 states and 246 transitions. [2020-12-22 06:54:38,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:54:38,819 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:54:38,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:38,846 INFO L225 Difference]: With dead ends: 161 [2020-12-22 06:54:38,846 INFO L226 Difference]: Without dead ends: 80 [2020-12-22 06:54:38,850 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 06:54:38,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-22 06:54:38,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-22 06:54:38,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:54:38,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 115 transitions. [2020-12-22 06:54:38,915 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 115 transitions. Word has length 18 [2020-12-22 06:54:38,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:38,915 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 115 transitions. [2020-12-22 06:54:38,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:54:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 115 transitions. [2020-12-22 06:54:38,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:54:38,917 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:38,917 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:38,919 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:54:38,919 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:38,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:38,920 INFO L82 PathProgramCache]: Analyzing trace with hash 572864739, now seen corresponding path program 1 times [2020-12-22 06:54:38,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:38,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790004364] [2020-12-22 06:54:38,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,079 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 06:54:39,079 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790004364] [2020-12-22 06:54:39,079 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,079 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:39,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699019979] [2020-12-22 06:54:39,081 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:39,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:39,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,083 INFO L87 Difference]: Start difference. First operand 80 states and 115 transitions. Second operand 3 states. [2020-12-22 06:54:39,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,094 INFO L93 Difference]: Finished difference Result 80 states and 115 transitions. [2020-12-22 06:54:39,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:39,095 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:54:39,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,096 INFO L225 Difference]: With dead ends: 80 [2020-12-22 06:54:39,097 INFO L226 Difference]: Without dead ends: 38 [2020-12-22 06:54:39,098 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 06:54:39,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2020-12-22 06:54:39,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2020-12-22 06:54:39,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-12-22 06:54:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 54 transitions. [2020-12-22 06:54:39,104 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 54 transitions. Word has length 19 [2020-12-22 06:54:39,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,104 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 54 transitions. [2020-12-22 06:54:39,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:39,105 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 54 transitions. [2020-12-22 06:54:39,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:54:39,106 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,106 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 06:54:39,106 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:54:39,107 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,107 INFO L82 PathProgramCache]: Analyzing trace with hash -2071848385, now seen corresponding path program 1 times [2020-12-22 06:54:39,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349306454] [2020-12-22 06:54:39,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,249 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 06:54:39,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349306454] [2020-12-22 06:54:39,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:39,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103772851] [2020-12-22 06:54:39,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:39,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:39,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,252 INFO L87 Difference]: Start difference. First operand 38 states and 54 transitions. Second operand 3 states. [2020-12-22 06:54:39,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,274 INFO L93 Difference]: Finished difference Result 100 states and 148 transitions. [2020-12-22 06:54:39,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:39,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:54:39,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,278 INFO L225 Difference]: With dead ends: 100 [2020-12-22 06:54:39,279 INFO L226 Difference]: Without dead ends: 69 [2020-12-22 06:54:39,279 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 06:54:39,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-12-22 06:54:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 65. [2020-12-22 06:54:39,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-12-22 06:54:39,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 96 transitions. [2020-12-22 06:54:39,305 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 96 transitions. Word has length 24 [2020-12-22 06:54:39,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,306 INFO L481 AbstractCegarLoop]: Abstraction has 65 states and 96 transitions. [2020-12-22 06:54:39,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 96 transitions. [2020-12-22 06:54:39,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:54:39,307 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,307 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:39,308 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:54:39,308 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,311 INFO L82 PathProgramCache]: Analyzing trace with hash 343514617, now seen corresponding path program 1 times [2020-12-22 06:54:39,312 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,312 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010923656] [2020-12-22 06:54:39,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,437 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 06:54:39,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010923656] [2020-12-22 06:54:39,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:39,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532520593] [2020-12-22 06:54:39,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:39,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:39,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:39,441 INFO L87 Difference]: Start difference. First operand 65 states and 96 transitions. Second operand 3 states. [2020-12-22 06:54:39,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,500 INFO L93 Difference]: Finished difference Result 166 states and 251 transitions. [2020-12-22 06:54:39,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:39,501 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:54:39,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,502 INFO L225 Difference]: With dead ends: 166 [2020-12-22 06:54:39,503 INFO L226 Difference]: Without dead ends: 108 [2020-12-22 06:54:39,504 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 06:54:39,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2020-12-22 06:54:39,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 106. [2020-12-22 06:54:39,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 06:54:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 156 transitions. [2020-12-22 06:54:39,529 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 156 transitions. Word has length 25 [2020-12-22 06:54:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,530 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 156 transitions. [2020-12-22 06:54:39,530 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:39,530 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 156 transitions. [2020-12-22 06:54:39,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:54:39,531 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,531 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] [2020-12-22 06:54:39,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:54:39,532 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,533 INFO L82 PathProgramCache]: Analyzing trace with hash -1750340408, now seen corresponding path program 1 times [2020-12-22 06:54:39,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518251611] [2020-12-22 06:54:39,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,677 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 06:54:39,677 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518251611] [2020-12-22 06:54:39,677 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,678 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:39,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179891142] [2020-12-22 06:54:39,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:39,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:39,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:39,680 INFO L87 Difference]: Start difference. First operand 106 states and 156 transitions. Second operand 5 states. [2020-12-22 06:54:39,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:39,791 INFO L93 Difference]: Finished difference Result 510 states and 765 transitions. [2020-12-22 06:54:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-12-22 06:54:39,792 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-12-22 06:54:39,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:39,796 INFO L225 Difference]: With dead ends: 510 [2020-12-22 06:54:39,796 INFO L226 Difference]: Without dead ends: 411 [2020-12-22 06:54:39,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 06:54:39,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2020-12-22 06:54:39,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 191. [2020-12-22 06:54:39,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-12-22 06:54:39,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 276 transitions. [2020-12-22 06:54:39,829 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 276 transitions. Word has length 27 [2020-12-22 06:54:39,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:39,829 INFO L481 AbstractCegarLoop]: Abstraction has 191 states and 276 transitions. [2020-12-22 06:54:39,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:39,830 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 276 transitions. [2020-12-22 06:54:39,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-12-22 06:54:39,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:39,831 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] [2020-12-22 06:54:39,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:54:39,832 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:39,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:39,832 INFO L82 PathProgramCache]: Analyzing trace with hash 1110481728, now seen corresponding path program 1 times [2020-12-22 06:54:39,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:39,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962362542] [2020-12-22 06:54:39,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:39,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:39,952 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 06:54:39,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962362542] [2020-12-22 06:54:39,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:39,954 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:54:39,955 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326315635] [2020-12-22 06:54:39,955 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:39,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:39,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:39,956 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:39,957 INFO L87 Difference]: Start difference. First operand 191 states and 276 transitions. Second operand 5 states. [2020-12-22 06:54:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,100 INFO L93 Difference]: Finished difference Result 709 states and 1031 transitions. [2020-12-22 06:54:40,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:54:40,101 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 28 [2020-12-22 06:54:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,104 INFO L225 Difference]: With dead ends: 709 [2020-12-22 06:54:40,104 INFO L226 Difference]: Without dead ends: 525 [2020-12-22 06:54:40,108 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 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 06:54:40,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2020-12-22 06:54:40,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 189. [2020-12-22 06:54:40,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-12-22 06:54:40,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 270 transitions. [2020-12-22 06:54:40,154 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 270 transitions. Word has length 28 [2020-12-22 06:54:40,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,154 INFO L481 AbstractCegarLoop]: Abstraction has 189 states and 270 transitions. [2020-12-22 06:54:40,154 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:40,154 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 270 transitions. [2020-12-22 06:54:40,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:40,165 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:54:40,166 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,167 INFO L82 PathProgramCache]: Analyzing trace with hash -2071146496, now seen corresponding path program 1 times [2020-12-22 06:54:40,168 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,168 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014897238] [2020-12-22 06:54:40,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,265 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 06:54:40,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014897238] [2020-12-22 06:54:40,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:40,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890133001] [2020-12-22 06:54:40,267 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:40,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:40,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:40,270 INFO L87 Difference]: Start difference. First operand 189 states and 270 transitions. Second operand 5 states. [2020-12-22 06:54:40,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,331 INFO L93 Difference]: Finished difference Result 515 states and 728 transitions. [2020-12-22 06:54:40,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:54:40,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 06:54:40,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,336 INFO L225 Difference]: With dead ends: 515 [2020-12-22 06:54:40,336 INFO L226 Difference]: Without dead ends: 333 [2020-12-22 06:54:40,339 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 06:54:40,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2020-12-22 06:54:40,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 201. [2020-12-22 06:54:40,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-12-22 06:54:40,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 282 transitions. [2020-12-22 06:54:40,366 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 282 transitions. Word has length 32 [2020-12-22 06:54:40,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,366 INFO L481 AbstractCegarLoop]: Abstraction has 201 states and 282 transitions. [2020-12-22 06:54:40,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:40,366 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 282 transitions. [2020-12-22 06:54:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:40,368 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,368 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:54:40,369 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,369 INFO L82 PathProgramCache]: Analyzing trace with hash -1370081918, now seen corresponding path program 1 times [2020-12-22 06:54:40,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579615585] [2020-12-22 06:54:40,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,453 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 06:54:40,454 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579615585] [2020-12-22 06:54:40,454 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,455 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:54:40,455 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215732819] [2020-12-22 06:54:40,456 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:54:40,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:54:40,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:54:40,457 INFO L87 Difference]: Start difference. First operand 201 states and 282 transitions. Second operand 5 states. [2020-12-22 06:54:40,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,563 INFO L93 Difference]: Finished difference Result 583 states and 802 transitions. [2020-12-22 06:54:40,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-22 06:54:40,563 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 06:54:40,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,566 INFO L225 Difference]: With dead ends: 583 [2020-12-22 06:54:40,567 INFO L226 Difference]: Without dead ends: 389 [2020-12-22 06:54:40,567 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 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 06:54:40,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 389 states. [2020-12-22 06:54:40,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 389 to 209. [2020-12-22 06:54:40,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-12-22 06:54:40,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 290 transitions. [2020-12-22 06:54:40,591 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 290 transitions. Word has length 32 [2020-12-22 06:54:40,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,592 INFO L481 AbstractCegarLoop]: Abstraction has 209 states and 290 transitions. [2020-12-22 06:54:40,592 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:54:40,592 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 290 transitions. [2020-12-22 06:54:40,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:54:40,593 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,593 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,593 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:54:40,594 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1956887932, now seen corresponding path program 1 times [2020-12-22 06:54:40,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,595 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21319266] [2020-12-22 06:54:40,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,649 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 06:54:40,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21319266] [2020-12-22 06:54:40,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:54:40,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058818548] [2020-12-22 06:54:40,656 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:40,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:40,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:40,657 INFO L87 Difference]: Start difference. First operand 209 states and 290 transitions. Second operand 3 states. [2020-12-22 06:54:40,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,707 INFO L93 Difference]: Finished difference Result 511 states and 703 transitions. [2020-12-22 06:54:40,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:40,708 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-12-22 06:54:40,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,710 INFO L225 Difference]: With dead ends: 511 [2020-12-22 06:54:40,710 INFO L226 Difference]: Without dead ends: 309 [2020-12-22 06:54:40,711 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 06:54:40,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states. [2020-12-22 06:54:40,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 309. [2020-12-22 06:54:40,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-12-22 06:54:40,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 412 transitions. [2020-12-22 06:54:40,756 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 412 transitions. Word has length 32 [2020-12-22 06:54:40,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,760 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 412 transitions. [2020-12-22 06:54:40,761 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:40,761 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 412 transitions. [2020-12-22 06:54:40,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-12-22 06:54:40,763 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,763 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] [2020-12-22 06:54:40,763 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:54:40,764 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,764 INFO L82 PathProgramCache]: Analyzing trace with hash 875175876, now seen corresponding path program 1 times [2020-12-22 06:54:40,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131279802] [2020-12-22 06:54:40,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:40,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:54:40,852 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 06:54:40,852 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131279802] [2020-12-22 06:54:40,852 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:54:40,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:54:40,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911001144] [2020-12-22 06:54:40,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:54:40,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:54:40,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:54:40,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:54:40,856 INFO L87 Difference]: Start difference. First operand 309 states and 412 transitions. Second operand 3 states. [2020-12-22 06:54:40,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:54:40,917 INFO L93 Difference]: Finished difference Result 447 states and 603 transitions. [2020-12-22 06:54:40,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:54:40,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2020-12-22 06:54:40,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:54:40,927 INFO L225 Difference]: With dead ends: 447 [2020-12-22 06:54:40,927 INFO L226 Difference]: Without dead ends: 445 [2020-12-22 06:54:40,928 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 06:54:40,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2020-12-22 06:54:40,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 370. [2020-12-22 06:54:40,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 370 states. [2020-12-22 06:54:40,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 504 transitions. [2020-12-22 06:54:40,965 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 504 transitions. Word has length 33 [2020-12-22 06:54:40,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:54:40,965 INFO L481 AbstractCegarLoop]: Abstraction has 370 states and 504 transitions. [2020-12-22 06:54:40,965 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:54:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 504 transitions. [2020-12-22 06:54:40,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-12-22 06:54:40,967 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:54:40,968 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:54:40,968 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:54:40,968 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:54:40,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:54:40,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1646221848, now seen corresponding path program 1 times [2020-12-22 06:54:40,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:54:40,969 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672551574] [2020-12-22 06:54:40,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:54:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:54:41,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:54:41,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:54:41,125 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:54:41,198 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:54:41,198 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:54:41,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-22 06:54:41,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:54:41 BoogieIcfgContainer [2020-12-22 06:54:41,396 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:54:41,396 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:54:41,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:54:41,397 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:54:41,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:54:38" (3/4) ... [2020-12-22 06:54:41,400 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:54:41,517 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec2_product35.cil.c-witness.graphml [2020-12-22 06:54:41,517 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:54:41,519 INFO L168 Benchmark]: Toolchain (without parser) took 5271.49 ms. Allocated memory was 160.4 MB in the beginning and 197.1 MB in the end (delta: 36.7 MB). Free memory was 115.8 MB in the beginning and 149.3 MB in the end (delta: -33.4 MB). Peak memory consumption was 4.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,520 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:54:41,520 INFO L168 Benchmark]: CACSL2BoogieTranslator took 629.05 ms. Allocated memory is still 160.4 MB. Free memory was 115.6 MB in the beginning and 95.3 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,521 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.01 ms. Allocated memory is still 160.4 MB. Free memory was 95.3 MB in the beginning and 140.7 MB in the end (delta: -45.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,521 INFO L168 Benchmark]: Boogie Preprocessor took 42.79 ms. Allocated memory is still 160.4 MB. Free memory was 140.7 MB in the beginning and 138.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,522 INFO L168 Benchmark]: RCFGBuilder took 1232.30 ms. Allocated memory is still 160.4 MB. Free memory was 138.2 MB in the beginning and 83.6 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,522 INFO L168 Benchmark]: TraceAbstraction took 3107.01 ms. Allocated memory was 160.4 MB in the beginning and 197.1 MB in the end (delta: 36.7 MB). Free memory was 83.4 MB in the beginning and 170.2 MB in the end (delta: -86.8 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,523 INFO L168 Benchmark]: Witness Printer took 120.85 ms. Allocated memory is still 197.1 MB. Free memory was 170.2 MB in the beginning and 149.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:54:41,525 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 160.4 MB. Free memory is still 133.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 629.05 ms. Allocated memory is still 160.4 MB. Free memory was 115.6 MB in the beginning and 95.3 MB in the end (delta: 20.4 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 130.01 ms. Allocated memory is still 160.4 MB. Free memory was 95.3 MB in the beginning and 140.7 MB in the end (delta: -45.4 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.79 ms. Allocated memory is still 160.4 MB. Free memory was 140.7 MB in the beginning and 138.2 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1232.30 ms. Allocated memory is still 160.4 MB. Free memory was 138.2 MB in the beginning and 83.6 MB in the end (delta: 54.6 MB). Peak memory consumption was 54.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3107.01 ms. Allocated memory was 160.4 MB in the beginning and 197.1 MB in the end (delta: 36.7 MB). Free memory was 83.4 MB in the beginning and 170.2 MB in the end (delta: -86.8 MB). Peak memory consumption was 53.7 MB. Max. memory is 8.0 GB. * Witness Printer took 120.85 ms. Allocated memory is still 197.1 MB. Free memory was 170.2 MB in the beginning and 149.3 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 738]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L418] int pumpRunning = 0; [L419] int systemActive = 1; [L657] int methAndRunningLastTime ; [L743] int cleanupTimeShifts = 4; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L817] int retValue_acc ; [L818] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L725] int retValue_acc ; [L728] retValue_acc = 1 [L729] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L824] tmp = valid_product() [L826] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L662] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L590] int splverifierCounter ; [L591] int tmp ; [L592] int tmp___0 ; [L593] int tmp___1 ; [L594] int tmp___2 ; [L597] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L607] tmp = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L871] COND FALSE !(\read(methaneLevelCritical)) [L874] methaneLevelCritical = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L426] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L458] COND TRUE ! pumpRunning [L552] int retValue_acc ; [L553] int tmp ; [L554] int tmp___0 ; [L921] int retValue_acc ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L924] COND FALSE !(waterLevel < 2) [L928] retValue_acc = 0 [L929] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L558] tmp = isHighWaterSensorDry() [L560] COND FALSE !(\read(tmp)) [L563] tmp___0 = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L565] retValue_acc = tmp___0 [L566] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L460] tmp = isHighWaterLevel() [L462] COND TRUE \read(tmp) [L483] pumpRunning = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L679] COND FALSE !(\read(methAndRunningLastTime)) [L684] methAndRunningLastTime = 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L599] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L601] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L607] tmp = __VERIFIER_nondet_int() [L609] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L617] tmp___0 = __VERIFIER_nondet_int() [L619] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L627] tmp___2 = __VERIFIER_nondet_int() [L629] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L426] COND TRUE \read(pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L847] COND TRUE waterLevel > 0 [L848] waterLevel = waterLevel - 1 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L433] COND TRUE \read(systemActive) [L455] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L458] COND FALSE !(! pumpRunning) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L667] int tmp ; [L668] int tmp___0 ; [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L672] tmp = isMethaneLevelCritical() [L674] COND TRUE \read(tmp) [L507] int retValue_acc ; [L510] retValue_acc = pumpRunning [L511] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L676] tmp___0 = isPumpRunning() [L678] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L679] COND TRUE \read(methAndRunningLastTime) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L738] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.8s, OverallIterations: 11, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 710 SDtfs, 883 SDslu, 1066 SDs, 0 SdLazy, 124 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=370occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 949 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 321 NumberOfCodeBlocks, 321 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 15416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...