/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_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:12,110 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:12,115 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:12,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:12,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:12,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:12,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:12,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:12,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:12,193 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:12,195 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:12,196 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:12,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:12,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:12,202 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:12,204 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:12,205 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:12,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:12,215 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:12,223 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:12,225 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:12,227 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:12,228 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:12,231 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:12,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:12,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:12,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:12,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:12,269 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:12,271 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:12,271 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:12,272 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:12,272 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:12,272 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:12,273 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:12,274 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:12,275 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:12,329 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:12,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:12,333 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:12,334 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:12,334 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:12,334 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:12,334 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:12,335 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:12,335 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:12,335 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:12,336 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:12,337 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:12,337 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:12,337 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:12,337 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:12,337 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:12,338 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:12,338 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:12,338 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:12,338 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:12,339 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:12,339 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:12,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:12,339 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:12,339 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:12,340 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:12,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:12,798 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:12,801 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:12,802 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:12,803 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:12,804 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2020-12-22 06:56:12,882 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1570eeed/bc3975d2f8734b70a54e561d6f96f3dd/FLAG6a1e64817 [2020-12-22 06:56:13,639 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:13,640 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product07.cil.c [2020-12-22 06:56:13,658 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1570eeed/bc3975d2f8734b70a54e561d6f96f3dd/FLAG6a1e64817 [2020-12-22 06:56:13,883 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f1570eeed/bc3975d2f8734b70a54e561d6f96f3dd [2020-12-22 06:56:13,886 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:13,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:13,894 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:13,894 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:13,898 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:13,899 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:13" (1/1) ... [2020-12-22 06:56:13,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed69ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:13, skipping insertion in model container [2020-12-22 06:56:13,902 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:13" (1/1) ... [2020-12-22 06:56:13,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:13,982 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:14,168 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_product07.cil.c[3026,3039] [2020-12-22 06:56:14,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:14,308 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:14,331 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_product07.cil.c[3026,3039] [2020-12-22 06:56:14,400 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:14,435 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:14,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14 WrapperNode [2020-12-22 06:56:14,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:14,437 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:14,437 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:14,437 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:14,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,463 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,509 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:14,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:14,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:14,510 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:14,520 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,520 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,525 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,558 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,566 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (1/1) ... [2020-12-22 06:56:14,575 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:14,577 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:14,577 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:14,577 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:14,578 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (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 06:56:14,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:14,705 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:14,706 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:15,755 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:15,756 INFO L299 CfgBuilder]: Removed 100 assume(true) statements. [2020-12-22 06:56:15,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:15 BoogieIcfgContainer [2020-12-22 06:56:15,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:15,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:15,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:15,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:15,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:13" (1/3) ... [2020-12-22 06:56:15,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce07325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:15, skipping insertion in model container [2020-12-22 06:56:15,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:14" (2/3) ... [2020-12-22 06:56:15,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ce07325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:15, skipping insertion in model container [2020-12-22 06:56:15,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:15" (3/3) ... [2020-12-22 06:56:15,767 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product07.cil.c [2020-12-22 06:56:15,774 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:15,779 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:15,796 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:15,823 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:15,823 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:15,823 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:15,824 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:15,824 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:15,824 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:15,824 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:15,824 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:15,842 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states. [2020-12-22 06:56:15,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:15,849 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:15,850 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:15,850 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:15,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:15,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1114813757, now seen corresponding path program 1 times [2020-12-22 06:56:15,867 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:15,867 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377403938] [2020-12-22 06:56:15,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:16,181 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 06:56:16,182 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377403938] [2020-12-22 06:56:16,183 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:16,183 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:16,184 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892543784] [2020-12-22 06:56:16,189 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:16,189 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:16,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:16,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:16,207 INFO L87 Difference]: Start difference. First operand 71 states. Second operand 2 states. [2020-12-22 06:56:16,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:16,237 INFO L93 Difference]: Finished difference Result 136 states and 203 transitions. [2020-12-22 06:56:16,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:16,239 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:16,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:16,253 INFO L225 Difference]: With dead ends: 136 [2020-12-22 06:56:16,254 INFO L226 Difference]: Without dead ends: 67 [2020-12-22 06:56:16,257 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 06:56:16,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-12-22 06:56:16,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2020-12-22 06:56:16,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-12-22 06:56:16,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 93 transitions. [2020-12-22 06:56:16,304 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 93 transitions. Word has length 16 [2020-12-22 06:56:16,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:16,305 INFO L481 AbstractCegarLoop]: Abstraction has 67 states and 93 transitions. [2020-12-22 06:56:16,305 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:16,305 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 93 transitions. [2020-12-22 06:56:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:16,306 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:16,307 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 06:56:16,307 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:16,307 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:16,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:16,308 INFO L82 PathProgramCache]: Analyzing trace with hash 2133396642, now seen corresponding path program 1 times [2020-12-22 06:56:16,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:16,309 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797036359] [2020-12-22 06:56:16,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:16,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:16,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:16,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797036359] [2020-12-22 06:56:16,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:16,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:16,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912039292] [2020-12-22 06:56:16,459 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:16,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:16,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:16,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:16,463 INFO L87 Difference]: Start difference. First operand 67 states and 93 transitions. Second operand 3 states. [2020-12-22 06:56:16,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:16,487 INFO L93 Difference]: Finished difference Result 67 states and 93 transitions. [2020-12-22 06:56:16,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:16,491 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:16,493 INFO L225 Difference]: With dead ends: 67 [2020-12-22 06:56:16,493 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 06:56:16,494 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 06:56:16,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 06:56:16,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 06:56:16,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 06:56:16,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-12-22 06:56:16,501 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-12-22 06:56:16,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:16,501 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-12-22 06:56:16,501 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:16,502 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-12-22 06:56:16,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:16,503 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:16,503 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 06:56:16,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:16,503 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:16,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:16,504 INFO L82 PathProgramCache]: Analyzing trace with hash 719253894, now seen corresponding path program 1 times [2020-12-22 06:56:16,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:16,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460365373] [2020-12-22 06:56:16,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:16,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:16,633 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 06:56:16,633 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460365373] [2020-12-22 06:56:16,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:16,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:16,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51866681] [2020-12-22 06:56:16,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:56:16,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:16,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:56:16,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:56:16,636 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 6 states. [2020-12-22 06:56:16,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:16,883 INFO L93 Difference]: Finished difference Result 110 states and 160 transitions. [2020-12-22 06:56:16,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-22 06:56:16,883 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-12-22 06:56:16,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:16,885 INFO L225 Difference]: With dead ends: 110 [2020-12-22 06:56:16,885 INFO L226 Difference]: Without dead ends: 83 [2020-12-22 06:56:16,886 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 06:56:16,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-12-22 06:56:16,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 52. [2020-12-22 06:56:16,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-12-22 06:56:16,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 75 transitions. [2020-12-22 06:56:16,898 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 75 transitions. Word has length 22 [2020-12-22 06:56:16,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:16,898 INFO L481 AbstractCegarLoop]: Abstraction has 52 states and 75 transitions. [2020-12-22 06:56:16,898 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:56:16,899 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 75 transitions. [2020-12-22 06:56:16,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:56:16,900 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:16,900 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 06:56:16,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:16,900 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:16,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:16,901 INFO L82 PathProgramCache]: Analyzing trace with hash -842737206, now seen corresponding path program 1 times [2020-12-22 06:56:16,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:16,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118306377] [2020-12-22 06:56:16,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:16,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:17,009 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 06:56:17,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118306377] [2020-12-22 06:56:17,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:17,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:17,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970734037] [2020-12-22 06:56:17,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 06:56:17,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:17,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 06:56:17,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:17,013 INFO L87 Difference]: Start difference. First operand 52 states and 75 transitions. Second operand 8 states. [2020-12-22 06:56:17,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:17,407 INFO L93 Difference]: Finished difference Result 317 states and 489 transitions. [2020-12-22 06:56:17,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 06:56:17,408 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 23 [2020-12-22 06:56:17,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:17,411 INFO L225 Difference]: With dead ends: 317 [2020-12-22 06:56:17,411 INFO L226 Difference]: Without dead ends: 271 [2020-12-22 06:56:17,412 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 06:56:17,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-12-22 06:56:17,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 130. [2020-12-22 06:56:17,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-12-22 06:56:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 187 transitions. [2020-12-22 06:56:17,441 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 187 transitions. Word has length 23 [2020-12-22 06:56:17,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:17,442 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 187 transitions. [2020-12-22 06:56:17,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 06:56:17,442 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 187 transitions. [2020-12-22 06:56:17,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:17,443 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:17,444 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 06:56:17,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:17,444 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:17,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:17,445 INFO L82 PathProgramCache]: Analyzing trace with hash 767593024, now seen corresponding path program 1 times [2020-12-22 06:56:17,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:17,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215817454] [2020-12-22 06:56:17,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:17,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:17,506 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 06:56:17,507 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215817454] [2020-12-22 06:56:17,507 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:17,507 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:17,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755812455] [2020-12-22 06:56:17,508 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:17,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:17,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:17,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:17,511 INFO L87 Difference]: Start difference. First operand 130 states and 187 transitions. Second operand 3 states. [2020-12-22 06:56:17,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:17,539 INFO L93 Difference]: Finished difference Result 239 states and 346 transitions. [2020-12-22 06:56:17,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:17,541 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:17,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:17,542 INFO L225 Difference]: With dead ends: 239 [2020-12-22 06:56:17,543 INFO L226 Difference]: Without dead ends: 115 [2020-12-22 06:56:17,546 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 06:56:17,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-12-22 06:56:17,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2020-12-22 06:56:17,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-12-22 06:56:17,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2020-12-22 06:56:17,583 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 24 [2020-12-22 06:56:17,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:17,584 INFO L481 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2020-12-22 06:56:17,584 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:17,584 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2020-12-22 06:56:17,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:56:17,589 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:17,589 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 06:56:17,589 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:17,590 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:17,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:17,590 INFO L82 PathProgramCache]: Analyzing trace with hash 402720837, now seen corresponding path program 1 times [2020-12-22 06:56:17,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:17,591 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604384638] [2020-12-22 06:56:17,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:17,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:17,752 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 06:56:17,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604384638] [2020-12-22 06:56:17,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1071397115] [2020-12-22 06:56:17,753 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 06:56:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:17,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 374 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:17,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:18,029 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 06:56:18,030 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:18,030 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:18,031 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979492229] [2020-12-22 06:56:18,031 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:18,032 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:18,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:18,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:18,034 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand 4 states. [2020-12-22 06:56:18,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:18,117 INFO L93 Difference]: Finished difference Result 150 states and 201 transitions. [2020-12-22 06:56:18,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:18,118 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-12-22 06:56:18,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:18,119 INFO L225 Difference]: With dead ends: 150 [2020-12-22 06:56:18,119 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:18,121 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 06:56:18,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:18,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:18,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:18,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:18,122 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-12-22 06:56:18,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:18,124 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:18,127 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:18,127 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:18,128 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:18,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:18,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:19,097 INFO L189 CegarLoopUtils]: For program point L283(lines 283 296) no Hoare annotation was computed. [2020-12-22 06:56:19,097 INFO L185 CegarLoopUtils]: At program point L283-1(lines 1 883) the Hoare annotation is: (let ((.cse2 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse5 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (.cse0 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0))) (.cse1 (not (= |ULTIMATE.start_getWaterLevel_#res| 0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~waterLevel~0) .cse5) (and (= ~waterLevel~0 1) .cse2 (not (= 0 ~systemActive~0)) .cse3 .cse4 .cse5) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse3 .cse4))) [2020-12-22 06:56:19,098 INFO L189 CegarLoopUtils]: For program point L283-2(lines 283 296) no Hoare annotation was computed. [2020-12-22 06:56:19,098 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2020-12-22 06:56:19,098 INFO L185 CegarLoopUtils]: At program point L283-3(lines 1 883) the Hoare annotation is: false [2020-12-22 06:56:19,098 INFO L189 CegarLoopUtils]: For program point L283-4(lines 283 296) no Hoare annotation was computed. [2020-12-22 06:56:19,098 INFO L185 CegarLoopUtils]: At program point L283-5(lines 1 883) the Hoare annotation is: false [2020-12-22 06:56:19,098 INFO L189 CegarLoopUtils]: For program point L680(lines 680 684) no Hoare annotation was computed. [2020-12-22 06:56:19,099 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:19,099 INFO L185 CegarLoopUtils]: At program point L829(lines 824 832) the Hoare annotation is: false [2020-12-22 06:56:19,099 INFO L185 CegarLoopUtils]: At program point L829-1(lines 824 832) the Hoare annotation is: false [2020-12-22 06:56:19,099 INFO L185 CegarLoopUtils]: At program point L829-2(lines 824 832) the Hoare annotation is: false [2020-12-22 06:56:19,099 INFO L189 CegarLoopUtils]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-22 06:56:19,099 INFO L189 CegarLoopUtils]: For program point L185-1(line 185) no Hoare annotation was computed. [2020-12-22 06:56:19,099 INFO L189 CegarLoopUtils]: For program point L185-2(line 185) no Hoare annotation was computed. [2020-12-22 06:56:19,100 INFO L189 CegarLoopUtils]: For program point L780(lines 780 788) no Hoare annotation was computed. [2020-12-22 06:56:19,100 INFO L189 CegarLoopUtils]: For program point L780-1(lines 780 788) no Hoare annotation was computed. [2020-12-22 06:56:19,100 INFO L189 CegarLoopUtils]: For program point L714(lines 714 720) no Hoare annotation was computed. [2020-12-22 06:56:19,100 INFO L189 CegarLoopUtils]: For program point L780-2(lines 780 788) no Hoare annotation was computed. [2020-12-22 06:56:19,100 INFO L185 CegarLoopUtils]: At program point L714-1(lines 744 750) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-12-22 06:56:19,100 INFO L189 CegarLoopUtils]: For program point L698(lines 698 704) no Hoare annotation was computed. [2020-12-22 06:56:19,101 INFO L185 CegarLoopUtils]: At program point L698-1(lines 698 704) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0))) (or (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0)) (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2 .cse3 .cse4))) [2020-12-22 06:56:19,101 INFO L185 CegarLoopUtils]: At program point L269(lines 264 272) 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_valid_product_#res| ~waterLevel~0) .cse1 .cse2 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)))) [2020-12-22 06:56:19,101 INFO L185 CegarLoopUtils]: At program point L269-1(lines 264 272) the Hoare annotation is: false [2020-12-22 06:56:19,101 INFO L185 CegarLoopUtils]: At program point L269-2(lines 264 272) the Hoare annotation is: false [2020-12-22 06:56:19,102 INFO L185 CegarLoopUtils]: At program point L237(lines 232 240) the Hoare annotation is: false [2020-12-22 06:56:19,102 INFO L185 CegarLoopUtils]: At program point L237-1(lines 232 240) the Hoare annotation is: false [2020-12-22 06:56:19,102 INFO L185 CegarLoopUtils]: At program point L237-2(lines 232 240) the Hoare annotation is: false [2020-12-22 06:56:19,102 INFO L189 CegarLoopUtils]: For program point L287(lines 287 293) no Hoare annotation was computed. [2020-12-22 06:56:19,102 INFO L189 CegarLoopUtils]: For program point L287-2(lines 287 293) no Hoare annotation was computed. [2020-12-22 06:56:19,102 INFO L189 CegarLoopUtils]: For program point L287-4(lines 287 293) no Hoare annotation was computed. [2020-12-22 06:56:19,103 INFO L185 CegarLoopUtils]: At program point L751(lines 751 757) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-12-22 06:56:19,103 INFO L185 CegarLoopUtils]: At program point L751-1(lines 751 757) the Hoare annotation is: false [2020-12-22 06:56:19,103 INFO L185 CegarLoopUtils]: At program point L751-2(lines 751 757) the Hoare annotation is: false [2020-12-22 06:56:19,103 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:19,103 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 06:56:19,103 INFO L189 CegarLoopUtils]: For program point L224(lines 224 228) no Hoare annotation was computed. [2020-12-22 06:56:19,104 INFO L185 CegarLoopUtils]: At program point L92-2(lines 92 106) the Hoare annotation is: false [2020-12-22 06:56:19,104 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2020-12-22 06:56:19,104 INFO L189 CegarLoopUtils]: For program point L93(line 93) no Hoare annotation was computed. [2020-12-22 06:56:19,104 INFO L185 CegarLoopUtils]: At program point L820(lines 813 823) the Hoare annotation is: false [2020-12-22 06:56:19,104 INFO L185 CegarLoopUtils]: At program point L820-1(lines 813 823) the Hoare annotation is: false [2020-12-22 06:56:19,105 INFO L185 CegarLoopUtils]: At program point L820-2(lines 813 823) the Hoare annotation is: false [2020-12-22 06:56:19,105 INFO L189 CegarLoopUtils]: For program point L688(lines 688 694) no Hoare annotation was computed. [2020-12-22 06:56:19,105 INFO L192 CegarLoopUtils]: At program point L176(lines 157 179) the Hoare annotation is: true [2020-12-22 06:56:19,105 INFO L185 CegarLoopUtils]: At program point L143(lines 139 145) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~0 ~systemActive~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) [2020-12-22 06:56:19,106 INFO L185 CegarLoopUtils]: At program point L688-1(lines 688 694) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (<= 1 ~waterLevel~0)) (.cse4 (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0))) (or (and (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~1 0)) (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 .cse1 .cse2 .cse3 .cse4) (and (<= 2 ~waterLevel~0) .cse1 .cse2) (and .cse0 (not (= 0 ~systemActive~0)) .cse1 .cse2 .cse3 .cse4))) [2020-12-22 06:56:19,106 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:19,106 INFO L189 CegarLoopUtils]: For program point L96(lines 96 100) no Hoare annotation was computed. [2020-12-22 06:56:19,106 INFO L189 CegarLoopUtils]: For program point L96-1(lines 744 750) no Hoare annotation was computed. [2020-12-22 06:56:19,106 INFO L189 CegarLoopUtils]: For program point L212(lines 212 216) no Hoare annotation was computed. [2020-12-22 06:56:19,106 INFO L189 CegarLoopUtils]: For program point L873(lines 873 879) no Hoare annotation was computed. [2020-12-22 06:56:19,106 INFO L185 CegarLoopUtils]: At program point L873-1(lines 873 879) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-12-22 06:56:19,107 INFO L189 CegarLoopUtils]: For program point L708(lines 708 721) no Hoare annotation was computed. [2020-12-22 06:56:19,107 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:19,107 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 185) no Hoare annotation was computed. [2020-12-22 06:56:19,107 INFO L185 CegarLoopUtils]: At program point L726(lines 677 727) the Hoare annotation is: false [2020-12-22 06:56:19,107 INFO L189 CegarLoopUtils]: For program point L776(lines 776 793) no Hoare annotation was computed. [2020-12-22 06:56:19,107 INFO L189 CegarLoopUtils]: For program point L776-1(lines 776 793) no Hoare annotation was computed. [2020-12-22 06:56:19,107 INFO L189 CegarLoopUtils]: For program point L776-2(lines 776 793) no Hoare annotation was computed. [2020-12-22 06:56:19,108 INFO L185 CegarLoopUtils]: At program point L744(lines 743 762) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) .cse0 .cse1 (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~0 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0 .cse1))) [2020-12-22 06:56:19,108 INFO L189 CegarLoopUtils]: For program point L744-1(lines 744 750) no Hoare annotation was computed. [2020-12-22 06:56:19,108 INFO L185 CegarLoopUtils]: At program point L744-2(lines 743 762) the Hoare annotation is: false [2020-12-22 06:56:19,108 INFO L185 CegarLoopUtils]: At program point L744-3(lines 743 762) the Hoare annotation is: false [2020-12-22 06:56:19,108 INFO L185 CegarLoopUtils]: At program point L67(lines 1 883) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:19,108 INFO L189 CegarLoopUtils]: For program point L200(lines 200 204) no Hoare annotation was computed. [2020-12-22 06:56:19,109 INFO L189 CegarLoopUtils]: For program point L167(lines 167 174) no Hoare annotation was computed. [2020-12-22 06:56:19,109 INFO L189 CegarLoopUtils]: For program point L679(lines 678 725) no Hoare annotation was computed. [2020-12-22 06:56:19,109 INFO L192 CegarLoopUtils]: At program point L167-1(lines 167 174) the Hoare annotation is: true [2020-12-22 06:56:19,109 INFO L189 CegarLoopUtils]: For program point L200-3(lines 200 204) no Hoare annotation was computed. [2020-12-22 06:56:19,109 INFO L189 CegarLoopUtils]: For program point L200-6(lines 200 204) no Hoare annotation was computed. [2020-12-22 06:56:19,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:19 BoogieIcfgContainer [2020-12-22 06:56:19,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:19,153 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:19,153 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:19,153 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:19,154 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:15" (3/4) ... [2020-12-22 06:56:19,158 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:19,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:19,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:19,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:19,186 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:19,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:19,187 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:19,188 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:19,218 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 [2020-12-22 06:56:19,219 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\result == waterLevel && 1 == systemActive) && pumpRunning == 0) && tmp == systemActive) && tmp == waterLevel [2020-12-22 06:56:19,219 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || (((((waterLevel == 1 && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == waterLevel)) || ((((!(tmp == 0) && !(\result == 0)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:19,220 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) [2020-12-22 06:56:19,221 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) [2020-12-22 06:56:19,221 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:19,222 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:19,223 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:19,224 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) [2020-12-22 06:56:19,225 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) [2020-12-22 06:56:19,303 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product07.cil.c-witness.graphml [2020-12-22 06:56:19,303 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:19,305 INFO L168 Benchmark]: Toolchain (without parser) took 5414.98 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 128.3 MB in the beginning and 110.0 MB in the end (delta: 18.3 MB). Peak memory consumption was 56.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,305 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:19,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.04 ms. Allocated memory is still 153.1 MB. Free memory was 128.0 MB in the beginning and 108.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,307 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.63 ms. Allocated memory is still 153.1 MB. Free memory was 108.2 MB in the beginning and 105.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,307 INFO L168 Benchmark]: Boogie Preprocessor took 65.65 ms. Allocated memory is still 153.1 MB. Free memory was 105.2 MB in the beginning and 103.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,307 INFO L168 Benchmark]: RCFGBuilder took 1181.58 ms. Allocated memory is still 153.1 MB. Free memory was 103.1 MB in the beginning and 86.8 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,308 INFO L168 Benchmark]: TraceAbstraction took 3392.69 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 86.8 MB in the beginning and 116.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,308 INFO L168 Benchmark]: Witness Printer took 150.13 ms. Allocated memory is still 190.8 MB. Free memory was 116.3 MB in the beginning and 110.0 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:19,310 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 153.1 MB. Free memory is still 127.7 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 542.04 ms. Allocated memory is still 153.1 MB. Free memory was 128.0 MB in the beginning and 108.2 MB in the end (delta: 19.8 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 72.63 ms. Allocated memory is still 153.1 MB. Free memory was 108.2 MB in the beginning and 105.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 65.65 ms. Allocated memory is still 153.1 MB. Free memory was 105.2 MB in the beginning and 103.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1181.58 ms. Allocated memory is still 153.1 MB. Free memory was 103.1 MB in the beginning and 86.8 MB in the end (delta: 16.3 MB). Peak memory consumption was 15.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3392.69 ms. Allocated memory was 153.1 MB in the beginning and 190.8 MB in the end (delta: 37.7 MB). Free memory was 86.8 MB in the beginning and 116.3 MB in the end (delta: -29.5 MB). Peak memory consumption was 57.1 MB. Max. memory is 8.0 GB. * Witness Printer took 150.13 ms. Allocated memory is still 190.8 MB. Free memory was 116.3 MB in the beginning and 110.0 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: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 185]: 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: 698]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || (((((waterLevel == 1 && \result == waterLevel) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == waterLevel)) || ((((!(tmp == 0) && !(\result == 0)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 232]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 743]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 751]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((\result == waterLevel && 1 == systemActive) && pumpRunning == 0) && tmp == systemActive) && tmp == waterLevel - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 157]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 744]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((\result == systemActive && \result == waterLevel) && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: ((((\result == waterLevel && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 813]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 264]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) - InvariantResult [Line: 824]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 688]: Loop Invariant Derived loop invariant: (((((((!(tmp == 0) && !(\result == 0)) && \result == waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) || ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0)) || (((((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == waterLevel) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 71 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, 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, 0.3s SatisfiabilityAnalysisTime, 0.6s 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...