/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:18,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:18,513 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:18,564 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:18,565 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:18,568 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:18,571 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:18,579 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:18,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:18,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:18,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:18,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:18,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:18,594 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:18,595 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:18,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:18,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:18,602 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:18,608 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:18,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:18,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:18,619 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:18,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:18,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:18,631 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:18,639 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:18,640 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:18,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:18,643 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:18,644 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:18,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:18,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:18,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:18,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:18,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:18,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:18,662 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:18,717 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:18,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:18,722 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:18,722 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:18,722 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:18,722 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:18,723 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:18,723 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:18,723 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:18,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:18,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:18,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:18,724 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:18,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:18,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:18,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:18,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:18,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:18,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:18,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:18,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:18,726 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:18,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:18,727 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:18,727 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:18,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:19,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:19,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:19,160 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:19,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:19,163 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:19,163 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2020-12-22 06:56:19,247 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ef73fea/47e8c30807bb484496d3c2677fde61d3/FLAG8fbfb7a23 [2020-12-22 06:56:19,947 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:19,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c [2020-12-22 06:56:19,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ef73fea/47e8c30807bb484496d3c2677fde61d3/FLAG8fbfb7a23 [2020-12-22 06:56:20,273 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d6ef73fea/47e8c30807bb484496d3c2677fde61d3 [2020-12-22 06:56:20,276 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:20,278 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:20,280 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:20,280 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:20,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:20,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26754cfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20, skipping insertion in model container [2020-12-22 06:56:20,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,299 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:20,345 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:20,511 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[1817,1830] [2020-12-22 06:56:20,625 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:20,636 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:20,654 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product15.cil.c[1817,1830] [2020-12-22 06:56:20,776 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:20,819 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:20,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20 WrapperNode [2020-12-22 06:56:20,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:20,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:20,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:20,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:20,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,888 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:20,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:20,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:20,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:20,899 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,913 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,914 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,951 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... [2020-12-22 06:56:20,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:20,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:20,961 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:20,961 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:20,962 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:21,111 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:21,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:21,113 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:22,035 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:22,036 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2020-12-22 06:56:22,037 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:22 BoogieIcfgContainer [2020-12-22 06:56:22,038 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:22,039 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:22,040 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:22,043 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:22,044 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:20" (1/3) ... [2020-12-22 06:56:22,044 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293a750c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:22, skipping insertion in model container [2020-12-22 06:56:22,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:20" (2/3) ... [2020-12-22 06:56:22,045 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@293a750c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:22, skipping insertion in model container [2020-12-22 06:56:22,045 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:22" (3/3) ... [2020-12-22 06:56:22,047 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product15.cil.c [2020-12-22 06:56:22,054 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:22,059 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:22,078 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:22,106 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:22,106 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:22,106 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:22,106 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:22,107 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:22,107 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:22,107 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:22,107 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:22,124 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-12-22 06:56:22,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:22,131 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:22,131 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:22,132 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:22,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:22,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1114813757, now seen corresponding path program 1 times [2020-12-22 06:56:22,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:22,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [941989490] [2020-12-22 06:56:22,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:22,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:22,411 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [941989490] [2020-12-22 06:56:22,412 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:22,412 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:22,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069140251] [2020-12-22 06:56:22,419 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:22,419 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:22,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:22,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:22,443 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2020-12-22 06:56:22,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:22,489 INFO L93 Difference]: Finished difference Result 136 states and 203 transitions. [2020-12-22 06:56:22,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:22,491 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:22,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:22,521 INFO L225 Difference]: With dead ends: 136 [2020-12-22 06:56:22,521 INFO L226 Difference]: Without dead ends: 67 [2020-12-22 06:56:22,525 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:22,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-22 06:56:22,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-12-22 06:56:22,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-12-22 06:56:22,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2020-12-22 06:56:22,582 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 16 [2020-12-22 06:56:22,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:22,582 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2020-12-22 06:56:22,583 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:22,583 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-12-22 06:56:22,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:22,584 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:22,585 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:22,586 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:22,586 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:22,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:22,589 INFO L82 PathProgramCache]: Analyzing trace with hash 2133396642, now seen corresponding path program 1 times [2020-12-22 06:56:22,590 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:22,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342567697] [2020-12-22 06:56:22,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:22,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:22,809 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342567697] [2020-12-22 06:56:22,809 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:22,809 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:22,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478492749] [2020-12-22 06:56:22,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:22,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:22,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:22,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:22,813 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand 3 states. [2020-12-22 06:56:22,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:22,824 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-12-22 06:56:22,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:22,825 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:22,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:22,826 INFO L225 Difference]: With dead ends: 67 [2020-12-22 06:56:22,826 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 06:56:22,827 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:22,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 06:56:22,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 06:56:22,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 06:56:22,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-12-22 06:56:22,833 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-12-22 06:56:22,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:22,833 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-12-22 06:56:22,834 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:22,834 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-12-22 06:56:22,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:22,835 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:22,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:22,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:22,835 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:22,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:22,836 INFO L82 PathProgramCache]: Analyzing trace with hash 719253894, now seen corresponding path program 1 times [2020-12-22 06:56:22,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:22,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488436370] [2020-12-22 06:56:22,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:22,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:22,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:22,958 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488436370] [2020-12-22 06:56:22,959 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:22,959 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:22,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366204183] [2020-12-22 06:56:22,960 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:22,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:22,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:22,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:22,961 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-12-22 06:56:23,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:23,170 INFO L93 Difference]: Finished difference Result 110 states and 160 transitions. [2020-12-22 06:56:23,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:23,171 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-22 06:56:23,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:23,173 INFO L225 Difference]: With dead ends: 110 [2020-12-22 06:56:23,173 INFO L226 Difference]: Without dead ends: 83 [2020-12-22 06:56:23,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:23,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-22 06:56:23,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 52. [2020-12-22 06:56:23,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 06:56:23,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-12-22 06:56:23,185 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 22 [2020-12-22 06:56:23,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:23,186 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-12-22 06:56:23,186 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:23,186 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-12-22 06:56:23,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:56:23,187 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:23,188 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] [2020-12-22 06:56:23,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:23,188 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:23,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:23,189 INFO L82 PathProgramCache]: Analyzing trace with hash -842737206, now seen corresponding path program 1 times [2020-12-22 06:56:23,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:23,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392093747] [2020-12-22 06:56:23,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:23,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:23,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:23,287 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392093747] [2020-12-22 06:56:23,287 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:23,288 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:23,288 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84330422] [2020-12-22 06:56:23,288 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 06:56:23,289 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:23,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 06:56:23,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:23,290 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 8 states. [2020-12-22 06:56:23,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:23,687 INFO L93 Difference]: Finished difference Result 317 states and 489 transitions. [2020-12-22 06:56:23,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 06:56:23,688 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 06:56:23,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:23,694 INFO L225 Difference]: With dead ends: 317 [2020-12-22 06:56:23,694 INFO L226 Difference]: Without dead ends: 271 [2020-12-22 06:56:23,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-22 06:56:23,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-12-22 06:56:23,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 130. [2020-12-22 06:56:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-22 06:56:23,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2020-12-22 06:56:23,738 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 23 [2020-12-22 06:56:23,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:23,739 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2020-12-22 06:56:23,739 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 06:56:23,744 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2020-12-22 06:56:23,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:23,745 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:23,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:23,746 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:23,747 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:23,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:23,747 INFO L82 PathProgramCache]: Analyzing trace with hash 767593024, now seen corresponding path program 1 times [2020-12-22 06:56:23,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:23,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870356881] [2020-12-22 06:56:23,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:23,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:23,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:23,796 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870356881] [2020-12-22 06:56:23,796 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:23,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:23,796 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1168794034] [2020-12-22 06:56:23,797 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:23,797 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:23,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:23,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:23,798 INFO L87 Difference]: Start difference. First operand 130 states and 187 transitions. Second operand 3 states. [2020-12-22 06:56:23,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:23,817 INFO L93 Difference]: Finished difference Result 239 states and 346 transitions. [2020-12-22 06:56:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:23,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:23,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:23,820 INFO L225 Difference]: With dead ends: 239 [2020-12-22 06:56:23,821 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 06:56:23,822 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:23,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 06:56:23,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 06:56:23,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 06:56:23,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2020-12-22 06:56:23,848 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 24 [2020-12-22 06:56:23,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:23,849 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2020-12-22 06:56:23,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:23,849 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2020-12-22 06:56:23,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:56:23,853 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:23,855 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:23,855 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:23,856 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:23,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:23,856 INFO L82 PathProgramCache]: Analyzing trace with hash 402720837, now seen corresponding path program 1 times [2020-12-22 06:56:23,856 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:23,857 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550947374] [2020-12-22 06:56:23,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:23,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:23,979 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 10 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:23,979 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550947374] [2020-12-22 06:56:23,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [446119070] [2020-12-22 06:56:23,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-22 06:56:24,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:24,173 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:24,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:24,273 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:24,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:24,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:24,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092843195] [2020-12-22 06:56:24,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:24,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:24,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:24,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:24,277 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand 4 states. [2020-12-22 06:56:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:24,353 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2020-12-22 06:56:24,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:24,354 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-12-22 06:56:24,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:24,355 INFO L225 Difference]: With dead ends: 150 [2020-12-22 06:56:24,355 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:24,356 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:24,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:24,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:24,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:24,357 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-12-22 06:56:24,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:24,357 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:24,357 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:24,357 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:24,358 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:24,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:24,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:25,309 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2020-12-22 06:56:25,309 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:25,309 INFO L189 CegarLoopUtils]: For program point L796(lines 796 800) no Hoare annotation was computed. [2020-12-22 06:56:25,309 INFO L189 CegarLoopUtils]: For program point L796-1(lines 176 182) no Hoare annotation was computed. [2020-12-22 06:56:25,309 INFO L185 CegarLoopUtils]: At program point L152(lines 103 153) the Hoare annotation is: false [2020-12-22 06:56:25,310 INFO L189 CegarLoopUtils]: For program point L863(lines 863 870) no Hoare annotation was computed. [2020-12-22 06:56:25,310 INFO L192 CegarLoopUtils]: At program point L863-1(lines 863 870) the Hoare annotation is: true [2020-12-22 06:56:25,310 INFO L189 CegarLoopUtils]: For program point L731(lines 731 735) no Hoare annotation was computed. [2020-12-22 06:56:25,310 INFO L185 CegarLoopUtils]: At program point L269(lines 262 272) the Hoare annotation is: false [2020-12-22 06:56:25,310 INFO L185 CegarLoopUtils]: At program point L269-1(lines 262 272) the Hoare annotation is: false [2020-12-22 06:56:25,310 INFO L185 CegarLoopUtils]: At program point L269-2(lines 262 272) the Hoare annotation is: false [2020-12-22 06:56:25,311 INFO L189 CegarLoopUtils]: For program point L105(lines 104 151) no Hoare annotation was computed. [2020-12-22 06:56:25,311 INFO L189 CegarLoopUtils]: For program point L106(lines 106 110) no Hoare annotation was computed. [2020-12-22 06:56:25,311 INFO L189 CegarLoopUtils]: For program point L140(lines 140 146) no Hoare annotation was computed. [2020-12-22 06:56:25,311 INFO L185 CegarLoopUtils]: At program point L140-1(lines 176 182) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:25,311 INFO L189 CegarLoopUtils]: For program point L322(lines 322 328) no Hoare annotation was computed. [2020-12-22 06:56:25,312 INFO L185 CegarLoopUtils]: At program point L322-1(lines 322 328) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:25,312 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:25,312 INFO L189 CegarLoopUtils]: For program point L124(lines 124 130) no Hoare annotation was computed. [2020-12-22 06:56:25,312 INFO L185 CegarLoopUtils]: At program point L124-1(lines 124 130) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse3 (not (= 0 ~systemActive~0)) .cse0 .cse1 .cse4) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7 0)) .cse0 .cse1 .cse4))) [2020-12-22 06:56:25,312 INFO L189 CegarLoopUtils]: For program point L719(lines 719 723) no Hoare annotation was computed. [2020-12-22 06:56:25,312 INFO L185 CegarLoopUtils]: At program point L75(lines 70 78) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:25,313 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2020-12-22 06:56:25,313 INFO L189 CegarLoopUtils]: For program point L885(lines 885 898) no Hoare annotation was computed. [2020-12-22 06:56:25,313 INFO L185 CegarLoopUtils]: At program point L885-1(lines 1 901) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse4 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse5 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 1) .cse0 .cse1 (not (= 0 ~systemActive~0)) .cse2 .cse3) (and .cse4 .cse0 .cse1 .cse5 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and .cse4 (<= 2 ~waterLevel~0) .cse5 .cse2 .cse3))) [2020-12-22 06:56:25,313 INFO L189 CegarLoopUtils]: For program point L885-2(lines 885 898) no Hoare annotation was computed. [2020-12-22 06:56:25,314 INFO L185 CegarLoopUtils]: At program point L885-3(lines 1 901) the Hoare annotation is: false [2020-12-22 06:56:25,314 INFO L189 CegarLoopUtils]: For program point L885-4(lines 885 898) no Hoare annotation was computed. [2020-12-22 06:56:25,314 INFO L189 CegarLoopUtils]: For program point L208(lines 208 225) no Hoare annotation was computed. [2020-12-22 06:56:25,314 INFO L185 CegarLoopUtils]: At program point L885-5(lines 1 901) the Hoare annotation is: false [2020-12-22 06:56:25,314 INFO L189 CegarLoopUtils]: For program point L208-1(lines 208 225) no Hoare annotation was computed. [2020-12-22 06:56:25,314 INFO L189 CegarLoopUtils]: For program point L208-2(lines 208 225) no Hoare annotation was computed. [2020-12-22 06:56:25,315 INFO L185 CegarLoopUtils]: At program point L176(lines 175 194) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:25,315 INFO L189 CegarLoopUtils]: For program point L176-1(lines 176 182) no Hoare annotation was computed. [2020-12-22 06:56:25,315 INFO L185 CegarLoopUtils]: At program point L176-2(lines 175 194) the Hoare annotation is: false [2020-12-22 06:56:25,315 INFO L185 CegarLoopUtils]: At program point L176-3(lines 175 194) the Hoare annotation is: false [2020-12-22 06:56:25,315 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:25,315 INFO L192 CegarLoopUtils]: At program point L872(lines 853 875) the Hoare annotation is: true [2020-12-22 06:56:25,315 INFO L189 CegarLoopUtils]: For program point L707(lines 707 711) no Hoare annotation was computed. [2020-12-22 06:56:25,316 INFO L189 CegarLoopUtils]: For program point L707-3(lines 707 711) no Hoare annotation was computed. [2020-12-22 06:56:25,316 INFO L189 CegarLoopUtils]: For program point L707-6(lines 707 711) no Hoare annotation was computed. [2020-12-22 06:56:25,316 INFO L189 CegarLoopUtils]: For program point L889(lines 889 895) no Hoare annotation was computed. [2020-12-22 06:56:25,316 INFO L189 CegarLoopUtils]: For program point L889-2(lines 889 895) no Hoare annotation was computed. [2020-12-22 06:56:25,316 INFO L185 CegarLoopUtils]: At program point L278(lines 273 281) the Hoare annotation is: false [2020-12-22 06:56:25,316 INFO L185 CegarLoopUtils]: At program point L278-1(lines 273 281) the Hoare annotation is: false [2020-12-22 06:56:25,316 INFO L189 CegarLoopUtils]: For program point L889-4(lines 889 895) no Hoare annotation was computed. [2020-12-22 06:56:25,317 INFO L189 CegarLoopUtils]: For program point L212(lines 212 220) no Hoare annotation was computed. [2020-12-22 06:56:25,317 INFO L185 CegarLoopUtils]: At program point L278-2(lines 273 281) the Hoare annotation is: false [2020-12-22 06:56:25,317 INFO L189 CegarLoopUtils]: For program point L212-1(lines 212 220) no Hoare annotation was computed. [2020-12-22 06:56:25,317 INFO L189 CegarLoopUtils]: For program point L212-2(lines 212 220) no Hoare annotation was computed. [2020-12-22 06:56:25,317 INFO L185 CegarLoopUtils]: At program point L840(lines 836 842) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:25,317 INFO L189 CegarLoopUtils]: For program point L114(lines 114 120) no Hoare annotation was computed. [2020-12-22 06:56:25,318 INFO L185 CegarLoopUtils]: At program point L114-1(lines 114 120) the Hoare annotation is: (let ((.cse2 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and .cse2 .cse3 (not (= 0 ~systemActive~0)) .cse0 .cse1 .cse4) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse2 .cse3 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~7 0)) .cse0 .cse1 .cse4))) [2020-12-22 06:56:25,318 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:25,318 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 84) no Hoare annotation was computed. [2020-12-22 06:56:25,318 INFO L185 CegarLoopUtils]: At program point L792-2(lines 792 806) the Hoare annotation is: false [2020-12-22 06:56:25,318 INFO L185 CegarLoopUtils]: At program point L776(lines 771 779) the Hoare annotation is: (let ((.cse0 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:25,319 INFO L185 CegarLoopUtils]: At program point L776-1(lines 771 779) the Hoare annotation is: false [2020-12-22 06:56:25,319 INFO L185 CegarLoopUtils]: At program point L776-2(lines 771 779) the Hoare annotation is: false [2020-12-22 06:56:25,319 INFO L189 CegarLoopUtils]: For program point L793(line 793) no Hoare annotation was computed. [2020-12-22 06:56:25,319 INFO L185 CegarLoopUtils]: At program point L744(lines 739 747) the Hoare annotation is: false [2020-12-22 06:56:25,319 INFO L185 CegarLoopUtils]: At program point L744-1(lines 739 747) the Hoare annotation is: false [2020-12-22 06:56:25,319 INFO L185 CegarLoopUtils]: At program point L744-2(lines 739 747) the Hoare annotation is: false [2020-12-22 06:56:25,319 INFO L185 CegarLoopUtils]: At program point L67(lines 1 901) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:25,320 INFO L185 CegarLoopUtils]: At program point L183(lines 183 189) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ULTIMATE.start_main_~tmp~6 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:25,320 INFO L185 CegarLoopUtils]: At program point L183-1(lines 183 189) the Hoare annotation is: false [2020-12-22 06:56:25,320 INFO L185 CegarLoopUtils]: At program point L183-2(lines 183 189) the Hoare annotation is: false [2020-12-22 06:56:25,320 INFO L189 CegarLoopUtils]: For program point L84(line 84) no Hoare annotation was computed. [2020-12-22 06:56:25,320 INFO L189 CegarLoopUtils]: For program point L84-1(line 84) no Hoare annotation was computed. [2020-12-22 06:56:25,320 INFO L189 CegarLoopUtils]: For program point L84-2(line 84) no Hoare annotation was computed. [2020-12-22 06:56:25,321 INFO L189 CegarLoopUtils]: For program point L134(lines 134 147) no Hoare annotation was computed. [2020-12-22 06:56:25,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:25 BoogieIcfgContainer [2020-12-22 06:56:25,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:25,346 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:25,346 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:25,346 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:25,347 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:22" (3/4) ... [2020-12-22 06:56:25,350 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:25,366 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:25,367 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:25,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:25,368 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:25,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:25,369 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:25,370 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:25,398 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-12-22 06:56:25,398 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == waterLevel && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-12-22 06:56:25,399 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((waterLevel == 1 && tmp == waterLevel) && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && 2 <= waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:25,399 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,400 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,400 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,401 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,401 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,402 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,402 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:25,461 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product15.cil.c-witness.graphml [2020-12-22 06:56:25,461 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:25,463 INFO L168 Benchmark]: Toolchain (without parser) took 5183.87 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 125.7 MB in the beginning and 137.0 MB in the end (delta: -11.3 MB). Peak memory consumption was 28.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,463 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:25,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 540.35 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.87 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 102.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,465 INFO L168 Benchmark]: Boogie Preprocessor took 68.44 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 100.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,465 INFO L168 Benchmark]: RCFGBuilder took 1077.25 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 85.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,466 INFO L168 Benchmark]: TraceAbstraction took 3305.98 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 85.2 MB in the beginning and 143.3 MB in the end (delta: -58.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,466 INFO L168 Benchmark]: Witness Printer took 115.08 ms. Allocated memory is still 189.8 MB. Free memory was 143.3 MB in the beginning and 137.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:25,468 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 540.35 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 67.87 ms. Allocated memory is still 151.0 MB. Free memory was 105.2 MB in the beginning and 102.4 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 68.44 ms. Allocated memory is still 151.0 MB. Free memory was 102.4 MB in the beginning and 100.4 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1077.25 ms. Allocated memory is still 151.0 MB. Free memory was 100.3 MB in the beginning and 85.2 MB in the end (delta: 15.1 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3305.98 ms. Allocated memory was 151.0 MB in the beginning and 189.8 MB in the end (delta: 38.8 MB). Free memory was 85.2 MB in the beginning and 143.3 MB in the end (delta: -58.1 MB). Peak memory consumption was 65.2 MB. Max. memory is 8.0 GB. * Witness Printer took 115.08 ms. Allocated memory is still 189.8 MB. Free memory was 143.3 MB in the beginning and 137.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 84]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 84]: 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: 124]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((((waterLevel == 1 && tmp == waterLevel) && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && 2 <= waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 739]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 739]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 739]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((((tmp == waterLevel && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 322]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 792]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 836]: Loop Invariant Derived loop invariant: (((tmp == waterLevel && \result == systemActive) && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && tmp == waterLevel) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 273]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 183]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((tmp == waterLevel && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 262]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 771]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 175]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 336 SDtfs, 549 SDslu, 636 SDs, 0 SdLazy, 108 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=4, 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, 6 MinimizatonAttempts, 172 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 32 LocationsWithAnnotation, 32 PreInvPairs, 64 NumberOfFragments, 376 HoareAnnotationTreeSize, 32 FomulaSimplifications, 1373 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 32 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 11358 SizeOfPredicates, 0 NumberOfNonLiveVariables, 374 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 25/30 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...