/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:32,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:32,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:32,246 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:32,247 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:32,249 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:32,250 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:32,253 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:32,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:32,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:32,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:32,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:32,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:32,262 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:32,263 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:32,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:32,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:32,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:32,295 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:32,303 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:32,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:32,317 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:32,321 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:32,323 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:32,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:32,340 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:32,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:32,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:32,343 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:32,344 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:32,345 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:32,346 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:32,346 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:32,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:32,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:32,349 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:32,350 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:32,378 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:32,378 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:32,380 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:32,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:32,381 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:32,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:32,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:32,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:32,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:32,383 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:32,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:32,384 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:32,384 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:32,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:32,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:32,385 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:32,385 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:32,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:32,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:32,386 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:32,387 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:32,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:32,762 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:32,800 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:32,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:32,805 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:32,806 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:32,807 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2020-12-22 06:55:32,890 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af109071b/c4ed65ec00e9487d9e641f7b819d9128/FLAG4e565582c [2020-12-22 06:55:33,482 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:33,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2020-12-22 06:55:33,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af109071b/c4ed65ec00e9487d9e641f7b819d9128/FLAG4e565582c [2020-12-22 06:55:33,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af109071b/c4ed65ec00e9487d9e641f7b819d9128 [2020-12-22 06:55:33,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:33,770 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:33,771 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:33,771 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:33,775 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:33,776 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:33" (1/1) ... [2020-12-22 06:55:33,777 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@252ab437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:33, skipping insertion in model container [2020-12-22 06:55:33,778 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:33" (1/1) ... [2020-12-22 06:55:33,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:33,867 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:34,302 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13664,13677] [2020-12-22 06:55:34,333 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:34,344 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:34,423 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13664,13677] [2020-12-22 06:55:34,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:34,489 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:34,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34 WrapperNode [2020-12-22 06:55:34,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:34,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:34,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:34,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:34,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,545 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:34,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:34,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:34,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:34,605 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,606 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,628 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,632 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... [2020-12-22 06:55:34,637 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:34,639 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:34,639 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:34,639 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:34,640 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:34,753 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:34,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:34,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:35,668 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:35,668 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2020-12-22 06:55:35,670 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:35 BoogieIcfgContainer [2020-12-22 06:55:35,671 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:35,672 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:35,673 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:35,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:35,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:33" (1/3) ... [2020-12-22 06:55:35,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e5df62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:35, skipping insertion in model container [2020-12-22 06:55:35,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:34" (2/3) ... [2020-12-22 06:55:35,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43e5df62 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:35, skipping insertion in model container [2020-12-22 06:55:35,678 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:35" (3/3) ... [2020-12-22 06:55:35,680 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2020-12-22 06:55:35,688 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:35,693 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:35,714 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:35,757 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:35,758 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:35,758 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:35,758 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:35,758 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:35,758 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:35,758 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:35,759 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:35,778 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2020-12-22 06:55:35,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:35,786 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:35,787 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:35,787 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:35,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:35,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1284074395, now seen corresponding path program 1 times [2020-12-22 06:55:35,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:35,808 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981095235] [2020-12-22 06:55:35,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,114 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981095235] [2020-12-22 06:55:36,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,115 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:36,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879448237] [2020-12-22 06:55:36,121 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:36,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:36,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:36,139 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 2 states. [2020-12-22 06:55:36,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,172 INFO L93 Difference]: Finished difference Result 162 states and 245 transitions. [2020-12-22 06:55:36,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:36,174 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:36,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,195 INFO L225 Difference]: With dead ends: 162 [2020-12-22 06:55:36,195 INFO L226 Difference]: Without dead ends: 80 [2020-12-22 06:55:36,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:36,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-12-22 06:55:36,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-12-22 06:55:36,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:55:36,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 114 transitions. [2020-12-22 06:55:36,268 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 114 transitions. Word has length 18 [2020-12-22 06:55:36,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,269 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 114 transitions. [2020-12-22 06:55:36,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:36,269 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 114 transitions. [2020-12-22 06:55:36,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:36,271 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,271 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,272 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:36,272 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,275 INFO L82 PathProgramCache]: Analyzing trace with hash 373043642, now seen corresponding path program 1 times [2020-12-22 06:55:36,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85262195] [2020-12-22 06:55:36,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,488 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85262195] [2020-12-22 06:55:36,489 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,489 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:36,489 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892659184] [2020-12-22 06:55:36,491 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:36,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:36,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,492 INFO L87 Difference]: Start difference. First operand 80 states and 114 transitions. Second operand 3 states. [2020-12-22 06:55:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,504 INFO L93 Difference]: Finished difference Result 80 states and 114 transitions. [2020-12-22 06:55:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:36,505 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,506 INFO L225 Difference]: With dead ends: 80 [2020-12-22 06:55:36,506 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 06:55:36,507 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 06:55:36,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-22 06:55:36,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-22 06:55:36,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 51 transitions. [2020-12-22 06:55:36,513 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 51 transitions. Word has length 19 [2020-12-22 06:55:36,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,514 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 51 transitions. [2020-12-22 06:55:36,514 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:36,514 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 51 transitions. [2020-12-22 06:55:36,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:36,515 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:36,516 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,516 INFO L82 PathProgramCache]: Analyzing trace with hash -196588044, now seen corresponding path program 1 times [2020-12-22 06:55:36,517 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,517 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514554700] [2020-12-22 06:55:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,593 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514554700] [2020-12-22 06:55:36,593 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,593 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:36,594 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585456810] [2020-12-22 06:55:36,594 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:36,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:36,598 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,599 INFO L87 Difference]: Start difference. First operand 36 states and 51 transitions. Second operand 3 states. [2020-12-22 06:55:36,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,617 INFO L93 Difference]: Finished difference Result 66 states and 96 transitions. [2020-12-22 06:55:36,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:36,618 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:55:36,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,621 INFO L225 Difference]: With dead ends: 66 [2020-12-22 06:55:36,621 INFO L226 Difference]: Without dead ends: 36 [2020-12-22 06:55:36,622 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-12-22 06:55:36,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-12-22 06:55:36,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-12-22 06:55:36,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 50 transitions. [2020-12-22 06:55:36,633 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 50 transitions. Word has length 24 [2020-12-22 06:55:36,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,636 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 50 transitions. [2020-12-22 06:55:36,637 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:36,637 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 50 transitions. [2020-12-22 06:55:36,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:55:36,639 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,639 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:36,640 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,640 INFO L82 PathProgramCache]: Analyzing trace with hash 961211503, now seen corresponding path program 1 times [2020-12-22 06:55:36,640 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,641 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959297127] [2020-12-22 06:55:36,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,706 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959297127] [2020-12-22 06:55:36,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:36,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327081021] [2020-12-22 06:55:36,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:36,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:36,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,709 INFO L87 Difference]: Start difference. First operand 36 states and 50 transitions. Second operand 3 states. [2020-12-22 06:55:36,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,736 INFO L93 Difference]: Finished difference Result 89 states and 127 transitions. [2020-12-22 06:55:36,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:36,737 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:55:36,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,738 INFO L225 Difference]: With dead ends: 89 [2020-12-22 06:55:36,738 INFO L226 Difference]: Without dead ends: 59 [2020-12-22 06:55:36,739 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:36,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-12-22 06:55:36,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 57. [2020-12-22 06:55:36,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-12-22 06:55:36,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 80 transitions. [2020-12-22 06:55:36,748 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 80 transitions. Word has length 25 [2020-12-22 06:55:36,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,749 INFO L481 AbstractCegarLoop]: Abstraction has 57 states and 80 transitions. [2020-12-22 06:55:36,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:36,749 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 80 transitions. [2020-12-22 06:55:36,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:55:36,750 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,751 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:36,751 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,752 INFO L82 PathProgramCache]: Analyzing trace with hash 1128412896, now seen corresponding path program 1 times [2020-12-22 06:55:36,752 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,752 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568165887] [2020-12-22 06:55:36,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:36,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:36,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568165887] [2020-12-22 06:55:36,831 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:36,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:55:36,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105612251] [2020-12-22 06:55:36,832 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:36,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:36,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:36,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:36,833 INFO L87 Difference]: Start difference. First operand 57 states and 80 transitions. Second operand 5 states. [2020-12-22 06:55:36,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:36,895 INFO L93 Difference]: Finished difference Result 149 states and 209 transitions. [2020-12-22 06:55:36,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:55:36,899 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:55:36,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:36,900 INFO L225 Difference]: With dead ends: 149 [2020-12-22 06:55:36,901 INFO L226 Difference]: Without dead ends: 98 [2020-12-22 06:55:36,901 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:55:36,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-12-22 06:55:36,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 60. [2020-12-22 06:55:36,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:55:36,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 83 transitions. [2020-12-22 06:55:36,921 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 83 transitions. Word has length 31 [2020-12-22 06:55:36,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:36,926 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 83 transitions. [2020-12-22 06:55:36,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:36,926 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 83 transitions. [2020-12-22 06:55:36,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-22 06:55:36,927 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:36,928 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:36,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:36,928 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:36,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:36,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1016803, now seen corresponding path program 1 times [2020-12-22 06:55:36,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:36,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320893638] [2020-12-22 06:55:36,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:36,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:37,061 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320893638] [2020-12-22 06:55:37,062 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,062 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:37,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248989040] [2020-12-22 06:55:37,063 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:37,063 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:37,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:37,064 INFO L87 Difference]: Start difference. First operand 60 states and 83 transitions. Second operand 5 states. [2020-12-22 06:55:37,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,216 INFO L93 Difference]: Finished difference Result 314 states and 451 transitions. [2020-12-22 06:55:37,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:37,216 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2020-12-22 06:55:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,221 INFO L225 Difference]: With dead ends: 314 [2020-12-22 06:55:37,221 INFO L226 Difference]: Without dead ends: 260 [2020-12-22 06:55:37,226 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:55:37,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2020-12-22 06:55:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 106. [2020-12-22 06:55:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-12-22 06:55:37,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 144 transitions. [2020-12-22 06:55:37,269 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 144 transitions. Word has length 31 [2020-12-22 06:55:37,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,269 INFO L481 AbstractCegarLoop]: Abstraction has 106 states and 144 transitions. [2020-12-22 06:55:37,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:37,270 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 144 transitions. [2020-12-22 06:55:37,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:37,274 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,274 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:37,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-22 06:55:37,274 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,277 INFO L82 PathProgramCache]: Analyzing trace with hash -2111743067, now seen corresponding path program 1 times [2020-12-22 06:55:37,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768924603] [2020-12-22 06:55:37,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:37,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768924603] [2020-12-22 06:55:37,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,408 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:37,409 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159829789] [2020-12-22 06:55:37,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:55:37,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:55:37,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:55:37,411 INFO L87 Difference]: Start difference. First operand 106 states and 144 transitions. Second operand 4 states. [2020-12-22 06:55:37,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,510 INFO L93 Difference]: Finished difference Result 212 states and 295 transitions. [2020-12-22 06:55:37,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:55:37,511 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-22 06:55:37,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,512 INFO L225 Difference]: With dead ends: 212 [2020-12-22 06:55:37,512 INFO L226 Difference]: Without dead ends: 158 [2020-12-22 06:55:37,513 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:55:37,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-12-22 06:55:37,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2020-12-22 06:55:37,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-12-22 06:55:37,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 212 transitions. [2020-12-22 06:55:37,528 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 212 transitions. Word has length 32 [2020-12-22 06:55:37,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,528 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 212 transitions. [2020-12-22 06:55:37,529 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:55:37,529 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 212 transitions. [2020-12-22 06:55:37,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:37,530 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,530 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:37,530 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-22 06:55:37,531 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1172106979, now seen corresponding path program 1 times [2020-12-22 06:55:37,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272885968] [2020-12-22 06:55:37,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:37,594 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272885968] [2020-12-22 06:55:37,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:37,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050627082] [2020-12-22 06:55:37,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:55:37,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:55:37,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-12-22 06:55:37,599 INFO L87 Difference]: Start difference. First operand 155 states and 212 transitions. Second operand 4 states. [2020-12-22 06:55:37,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,639 INFO L93 Difference]: Finished difference Result 350 states and 487 transitions. [2020-12-22 06:55:37,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:55:37,640 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 32 [2020-12-22 06:55:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,642 INFO L225 Difference]: With dead ends: 350 [2020-12-22 06:55:37,642 INFO L226 Difference]: Without dead ends: 246 [2020-12-22 06:55:37,644 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:37,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2020-12-22 06:55:37,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 152. [2020-12-22 06:55:37,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 152 states. [2020-12-22 06:55:37,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 208 transitions. [2020-12-22 06:55:37,662 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 208 transitions. Word has length 32 [2020-12-22 06:55:37,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,664 INFO L481 AbstractCegarLoop]: Abstraction has 152 states and 208 transitions. [2020-12-22 06:55:37,664 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:55:37,664 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 208 transitions. [2020-12-22 06:55:37,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:37,668 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,668 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:37,668 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-22 06:55:37,670 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1737298786, now seen corresponding path program 1 times [2020-12-22 06:55:37,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773612070] [2020-12-22 06:55:37,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:37,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:37,755 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773612070] [2020-12-22 06:55:37,755 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:37,756 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:55:37,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529032935] [2020-12-22 06:55:37,756 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:37,757 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:37,758 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:37,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:37,759 INFO L87 Difference]: Start difference. First operand 152 states and 208 transitions. Second operand 5 states. [2020-12-22 06:55:37,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:37,927 INFO L93 Difference]: Finished difference Result 325 states and 456 transitions. [2020-12-22 06:55:37,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:55:37,928 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2020-12-22 06:55:37,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:37,929 INFO L225 Difference]: With dead ends: 325 [2020-12-22 06:55:37,929 INFO L226 Difference]: Without dead ends: 63 [2020-12-22 06:55:37,930 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:55:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-22 06:55:37,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 60. [2020-12-22 06:55:37,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:55:37,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 74 transitions. [2020-12-22 06:55:37,938 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 74 transitions. Word has length 32 [2020-12-22 06:55:37,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:37,942 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 74 transitions. [2020-12-22 06:55:37,942 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:37,943 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 74 transitions. [2020-12-22 06:55:37,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-12-22 06:55:37,944 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:37,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:37,945 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-22 06:55:37,945 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:37,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:37,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1430272417, now seen corresponding path program 1 times [2020-12-22 06:55:37,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:37,948 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009399655] [2020-12-22 06:55:37,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:38,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:38,043 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009399655] [2020-12-22 06:55:38,043 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:38,043 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:55:38,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101082368] [2020-12-22 06:55:38,045 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:55:38,045 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:38,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:55:38,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:55:38,049 INFO L87 Difference]: Start difference. First operand 60 states and 74 transitions. Second operand 6 states. [2020-12-22 06:55:38,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:38,092 INFO L93 Difference]: Finished difference Result 103 states and 128 transitions. [2020-12-22 06:55:38,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:55:38,093 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-12-22 06:55:38,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:38,097 INFO L225 Difference]: With dead ends: 103 [2020-12-22 06:55:38,097 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:55:38,098 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-12-22 06:55:38,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:55:38,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:55:38,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:55:38,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:55:38,099 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2020-12-22 06:55:38,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:38,099 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:55:38,099 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:55:38,099 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:55:38,099 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:55:38,099 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-22 06:55:38,102 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:55:38,637 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 615) no Hoare annotation was computed. [2020-12-22 06:55:38,638 INFO L185 CegarLoopUtils]: At program point L696(lines 695 714) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:38,638 INFO L189 CegarLoopUtils]: For program point L696-1(lines 696 702) no Hoare annotation was computed. [2020-12-22 06:55:38,638 INFO L185 CegarLoopUtils]: At program point L696-2(lines 695 714) the Hoare annotation is: false [2020-12-22 06:55:38,638 INFO L185 CegarLoopUtils]: At program point L696-3(lines 695 714) the Hoare annotation is: false [2020-12-22 06:55:38,638 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:55:38,638 INFO L189 CegarLoopUtils]: For program point L631(lines 630 675) no Hoare annotation was computed. [2020-12-22 06:55:38,638 INFO L189 CegarLoopUtils]: For program point L615(line 615) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L615-1(line 615) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L615-2(line 615) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L830(lines 830 834) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L830-2(lines 830 834) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L830-3(lines 830 834) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L830-5(lines 830 834) no Hoare annotation was computed. [2020-12-22 06:55:38,639 INFO L189 CegarLoopUtils]: For program point L632(lines 632 636) no Hoare annotation was computed. [2020-12-22 06:55:38,640 INFO L189 CegarLoopUtils]: For program point L830-6(lines 830 834) no Hoare annotation was computed. [2020-12-22 06:55:38,640 INFO L189 CegarLoopUtils]: For program point L830-8(lines 830 834) no Hoare annotation was computed. [2020-12-22 06:55:38,640 INFO L185 CegarLoopUtils]: At program point L781(lines 776 784) the Hoare annotation is: (and (= ~pumpRunning~0 1) (= 1 ~systemActive~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isPumpRunning_#res| 1)) [2020-12-22 06:55:38,640 INFO L185 CegarLoopUtils]: At program point L781-1(lines 776 784) the Hoare annotation is: false [2020-12-22 06:55:38,640 INFO L185 CegarLoopUtils]: At program point L781-2(lines 776 784) the Hoare annotation is: false [2020-12-22 06:55:38,640 INFO L185 CegarLoopUtils]: At program point L137(lines 128 141) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:38,641 INFO L185 CegarLoopUtils]: At program point L137-1(lines 128 141) the Hoare annotation is: false [2020-12-22 06:55:38,641 INFO L185 CegarLoopUtils]: At program point L137-2(lines 128 141) the Hoare annotation is: false [2020-12-22 06:55:38,641 INFO L185 CegarLoopUtils]: At program point L897(lines 1 908) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:55:38,641 INFO L189 CegarLoopUtils]: For program point L732(lines 732 740) no Hoare annotation was computed. [2020-12-22 06:55:38,641 INFO L189 CegarLoopUtils]: For program point L732-1(lines 732 740) no Hoare annotation was computed. [2020-12-22 06:55:38,641 INFO L189 CegarLoopUtils]: For program point L666(lines 666 670) no Hoare annotation was computed. [2020-12-22 06:55:38,641 INFO L189 CegarLoopUtils]: For program point L732-2(lines 732 740) no Hoare annotation was computed. [2020-12-22 06:55:38,641 INFO L189 CegarLoopUtils]: For program point L666-2(lines 696 702) no Hoare annotation was computed. [2020-12-22 06:55:38,642 INFO L189 CegarLoopUtils]: For program point L55(lines 55 59) no Hoare annotation was computed. [2020-12-22 06:55:38,642 INFO L189 CegarLoopUtils]: For program point L55-3(lines 55 59) no Hoare annotation was computed. [2020-12-22 06:55:38,642 INFO L189 CegarLoopUtils]: For program point L55-6(lines 55 59) no Hoare annotation was computed. [2020-12-22 06:55:38,642 INFO L185 CegarLoopUtils]: At program point L204(lines 200 206) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:55:38,642 INFO L189 CegarLoopUtils]: For program point L650(lines 650 656) no Hoare annotation was computed. [2020-12-22 06:55:38,642 INFO L185 CegarLoopUtils]: At program point L650-1(lines 650 656) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:38,643 INFO L185 CegarLoopUtils]: At program point L155-2(lines 155 169) the Hoare annotation is: false [2020-12-22 06:55:38,643 INFO L189 CegarLoopUtils]: For program point L156(line 156) no Hoare annotation was computed. [2020-12-22 06:55:38,643 INFO L189 CegarLoopUtils]: For program point L850(lines 850 870) no Hoare annotation was computed. [2020-12-22 06:55:38,643 INFO L189 CegarLoopUtils]: For program point L850-2(lines 850 870) no Hoare annotation was computed. [2020-12-22 06:55:38,643 INFO L189 CegarLoopUtils]: For program point L850-4(lines 850 870) no Hoare annotation was computed. [2020-12-22 06:55:38,643 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:55:38,643 INFO L185 CegarLoopUtils]: At program point L124(lines 119 127) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 1) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1 (= |ULTIMATE.start_getWaterLevel_#res| 1) (= ULTIMATE.start_processEnvironment_~tmp~5 0)))) [2020-12-22 06:55:38,644 INFO L185 CegarLoopUtils]: At program point L124-1(lines 119 127) the Hoare annotation is: false [2020-12-22 06:55:38,644 INFO L185 CegarLoopUtils]: At program point L124-2(lines 119 127) the Hoare annotation is: false [2020-12-22 06:55:38,644 INFO L192 CegarLoopUtils]: At program point L240(lines 221 243) the Hoare annotation is: true [2020-12-22 06:55:38,644 INFO L185 CegarLoopUtils]: At program point L703(lines 703 709) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~5 0)) (and .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1))) [2020-12-22 06:55:38,644 INFO L185 CegarLoopUtils]: At program point L703-1(lines 703 709) the Hoare annotation is: false [2020-12-22 06:55:38,644 INFO L185 CegarLoopUtils]: At program point L703-2(lines 703 709) the Hoare annotation is: false [2020-12-22 06:55:38,645 INFO L185 CegarLoopUtils]: At program point L92(lines 87 95) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 1) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1 (= ULTIMATE.start_processEnvironment_~tmp~5 0)))) [2020-12-22 06:55:38,645 INFO L185 CegarLoopUtils]: At program point L92-1(lines 87 95) the Hoare annotation is: false [2020-12-22 06:55:38,645 INFO L185 CegarLoopUtils]: At program point L92-2(lines 87 95) the Hoare annotation is: false [2020-12-22 06:55:38,645 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 615) no Hoare annotation was computed. [2020-12-22 06:55:38,645 INFO L185 CegarLoopUtils]: At program point L836(lines 821 839) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0)) (.cse5 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0)) (.cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0)) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (not .cse0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3 .cse4 (not .cse5)) (and .cse1 (let ((.cse6 (= ~waterLevel~0 1))) (or (and .cse6 .cse2 .cse3 .cse4) (and .cse6 .cse5 .cse0 .cse3 .cse4)))))) [2020-12-22 06:55:38,646 INFO L185 CegarLoopUtils]: At program point L836-1(lines 821 839) the Hoare annotation is: false [2020-12-22 06:55:38,646 INFO L185 CegarLoopUtils]: At program point L836-2(lines 821 839) the Hoare annotation is: false [2020-12-22 06:55:38,646 INFO L189 CegarLoopUtils]: For program point L159(lines 159 163) no Hoare annotation was computed. [2020-12-22 06:55:38,646 INFO L189 CegarLoopUtils]: For program point L159-1(lines 696 702) no Hoare annotation was computed. [2020-12-22 06:55:38,646 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:55:38,646 INFO L189 CegarLoopUtils]: For program point L640(lines 640 646) no Hoare annotation was computed. [2020-12-22 06:55:38,647 INFO L185 CegarLoopUtils]: At program point L640-1(lines 640 646) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ~pumpRunning~0 1) (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse2) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2))) [2020-12-22 06:55:38,647 INFO L189 CegarLoopUtils]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-12-22 06:55:38,647 INFO L185 CegarLoopUtils]: At program point L905(lines 900 908) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:55:38,647 INFO L189 CegarLoopUtils]: For program point L856(lines 856 869) no Hoare annotation was computed. [2020-12-22 06:55:38,647 INFO L185 CegarLoopUtils]: At program point L856-1(lines 1 908) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~pumpRunning~0 1) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~6 0) .cse1) (and (= ~waterLevel~0 1) .cse0 (= ~pumpRunning~0 0) .cse1))) [2020-12-22 06:55:38,647 INFO L189 CegarLoopUtils]: For program point L856-2(lines 856 869) no Hoare annotation was computed. [2020-12-22 06:55:38,648 INFO L185 CegarLoopUtils]: At program point L856-3(lines 1 908) the Hoare annotation is: false [2020-12-22 06:55:38,648 INFO L189 CegarLoopUtils]: For program point L856-4(lines 856 869) no Hoare annotation was computed. [2020-12-22 06:55:38,648 INFO L185 CegarLoopUtils]: At program point L856-5(lines 1 908) the Hoare annotation is: false [2020-12-22 06:55:38,648 INFO L185 CegarLoopUtils]: At program point L676(lines 629 677) the Hoare annotation is: false [2020-12-22 06:55:38,648 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:55:38,648 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 615) no Hoare annotation was computed. [2020-12-22 06:55:38,648 INFO L189 CegarLoopUtils]: For program point L660(lines 660 671) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L231(lines 231 238) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L192 CegarLoopUtils]: At program point L231-1(lines 231 238) the Hoare annotation is: true [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L132(lines 132 138) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L132-1(lines 132 138) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L132-2(lines 132 138) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L67(lines 67 71) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L860(lines 860 866) no Hoare annotation was computed. [2020-12-22 06:55:38,649 INFO L189 CegarLoopUtils]: For program point L860-2(lines 860 866) no Hoare annotation was computed. [2020-12-22 06:55:38,650 INFO L189 CegarLoopUtils]: For program point L728(lines 728 745) no Hoare annotation was computed. [2020-12-22 06:55:38,650 INFO L189 CegarLoopUtils]: For program point L860-4(lines 860 866) no Hoare annotation was computed. [2020-12-22 06:55:38,650 INFO L189 CegarLoopUtils]: For program point L728-1(lines 728 745) no Hoare annotation was computed. [2020-12-22 06:55:38,650 INFO L189 CegarLoopUtils]: For program point L728-2(lines 728 745) no Hoare annotation was computed. [2020-12-22 06:55:38,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:38 BoogieIcfgContainer [2020-12-22 06:55:38,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:38,679 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:38,679 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:38,679 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:38,680 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:35" (3/4) ... [2020-12-22 06:55:38,684 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:55:38,702 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:55:38,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:55:38,703 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:55:38,704 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:55:38,705 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:55:38,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:55:38,706 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:55:38,740 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:55:38,740 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 0) [2020-12-22 06:55:38,741 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (1 == systemActive && ((((waterLevel == 1 && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0))) [2020-12-22 06:55:38,742 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) && \result == 1 [2020-12-22 06:55:38,789 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product33.cil.c-witness.graphml [2020-12-22 06:55:38,790 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:38,792 INFO L168 Benchmark]: Toolchain (without parser) took 5021.41 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 141.6 MB in the beginning and 85.3 MB in the end (delta: 56.3 MB). Peak memory consumption was 97.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,792 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 160.4 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:38,793 INFO L168 Benchmark]: CACSL2BoogieTranslator took 720.54 ms. Allocated memory is still 160.4 MB. Free memory was 141.3 MB in the beginning and 136.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,793 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.45 ms. Allocated memory is still 160.4 MB. Free memory was 136.8 MB in the beginning and 133.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,793 INFO L168 Benchmark]: Boogie Preprocessor took 42.94 ms. Allocated memory is still 160.4 MB. Free memory was 133.7 MB in the beginning and 131.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,794 INFO L168 Benchmark]: RCFGBuilder took 1032.26 ms. Allocated memory is still 160.4 MB. Free memory was 131.6 MB in the beginning and 132.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,794 INFO L168 Benchmark]: TraceAbstraction took 3005.76 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 132.3 MB in the beginning and 93.2 MB in the end (delta: 39.1 MB). Peak memory consumption was 107.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,795 INFO L168 Benchmark]: Witness Printer took 110.95 ms. Allocated memory is still 202.4 MB. Free memory was 92.6 MB in the beginning and 85.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:38,797 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 160.4 MB. Free memory is still 133.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 720.54 ms. Allocated memory is still 160.4 MB. Free memory was 141.3 MB in the beginning and 136.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 16.6 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 101.45 ms. Allocated memory is still 160.4 MB. Free memory was 136.8 MB in the beginning and 133.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 42.94 ms. Allocated memory is still 160.4 MB. Free memory was 133.7 MB in the beginning and 131.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1032.26 ms. Allocated memory is still 160.4 MB. Free memory was 131.6 MB in the beginning and 132.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 49.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3005.76 ms. Allocated memory was 160.4 MB in the beginning and 202.4 MB in the end (delta: 41.9 MB). Free memory was 132.3 MB in the beginning and 93.2 MB in the end (delta: 39.1 MB). Peak memory consumption was 107.8 MB. Max. memory is 8.0 GB. * Witness Printer took 110.95 ms. Allocated memory is still 202.4 MB. Free memory was 92.6 MB in the beginning and 85.3 MB in the end (delta: 7.3 MB). Peak memory consumption was 7.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 615]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 615]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 615]: 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: 629]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || (((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 0) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 695]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((((\result == 0 && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: ((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0) - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 200]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && \result == 0) && 1 == systemActive) && 2 <= waterLevel) && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp___0 == 0)) || (1 == systemActive && ((((waterLevel == 1 && tmp == 0) && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && tmp___0 == 0) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0))) - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 221]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 231]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) && \result == 1 - InvariantResult [Line: 821]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || ((((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((pumpRunning == 1 && 1 == systemActive) && tmp == 0) && splverifierCounter == 0) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 640]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 650]: Loop Invariant Derived loop invariant: ((((1 == systemActive && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 1) && tmp == 0) && splverifierCounter == 0)) || (((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 703]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 84 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.3s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 742 SDtfs, 666 SDslu, 950 SDs, 0 SdLazy, 147 SolverSat, 18 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 52 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 294 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 33 LocationsWithAnnotation, 33 PreInvPairs, 88 NumberOfFragments, 398 HoareAnnotationTreeSize, 33 FomulaSimplifications, 5506 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 33 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 276 NumberOfCodeBlocks, 276 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 13637 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...