/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_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:25,914 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:25,917 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:25,953 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:25,954 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:25,955 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:25,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:25,960 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:25,962 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:25,965 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:25,966 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:25,968 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:25,968 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:25,970 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:25,971 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:25,972 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:25,992 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:25,995 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:25,997 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:26,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:26,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:26,004 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:26,005 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:26,006 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:26,010 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:26,014 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:26,015 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:26,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:26,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:26,018 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:26,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:26,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:26,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:26,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:26,022 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:26,023 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:26,024 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:26,060 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:26,061 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:26,062 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:26,063 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:26,063 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:26,063 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:26,063 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:26,064 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:26,064 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:26,064 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:26,064 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:26,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:26,065 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:26,065 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:26,065 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:26,065 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:26,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:26,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:26,066 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:26,066 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:26,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:26,067 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:26,067 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:26,067 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:26,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:26,068 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:26,448 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:26,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:26,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:26,485 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:26,486 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:26,487 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2020-12-22 06:56:26,579 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d959217cc/f641315b289f402e980cfcf708ead27a/FLAG7f503ce54 [2020-12-22 06:56:27,385 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:27,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product26.cil.c [2020-12-22 06:56:27,408 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d959217cc/f641315b289f402e980cfcf708ead27a/FLAG7f503ce54 [2020-12-22 06:56:27,680 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d959217cc/f641315b289f402e980cfcf708ead27a [2020-12-22 06:56:27,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:27,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:27,693 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:27,693 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:27,697 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:27,698 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,700 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c066dc0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27, skipping insertion in model container [2020-12-22 06:56:27,701 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:27,786 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:27,950 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_product26.cil.c[1281,1294] [2020-12-22 06:56:28,087 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:28,106 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:28,136 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_product26.cil.c[1281,1294] [2020-12-22 06:56:28,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:28,293 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:28,294 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28 WrapperNode [2020-12-22 06:56:28,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:28,296 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:28,296 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:28,296 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:28,305 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,329 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,401 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:28,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:28,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:28,408 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:28,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,419 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,435 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,486 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,501 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (1/1) ... [2020-12-22 06:56:28,517 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:28,520 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:28,520 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:28,520 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:28,524 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (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 06:56:28,615 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:28,616 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:28,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:29,754 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:29,755 INFO L299 CfgBuilder]: Removed 98 assume(true) statements. [2020-12-22 06:56:29,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:29 BoogieIcfgContainer [2020-12-22 06:56:29,757 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:29,759 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:29,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:29,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:29,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:27" (1/3) ... [2020-12-22 06:56:29,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76321e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:29, skipping insertion in model container [2020-12-22 06:56:29,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:28" (2/3) ... [2020-12-22 06:56:29,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76321e67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:29, skipping insertion in model container [2020-12-22 06:56:29,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:29" (3/3) ... [2020-12-22 06:56:29,768 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2020-12-22 06:56:29,776 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:29,782 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:29,805 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:29,837 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:29,837 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:29,837 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:29,837 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:29,838 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:29,838 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:29,838 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:29,838 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:29,859 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-12-22 06:56:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:29,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,868 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:29,868 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,876 INFO L82 PathProgramCache]: Analyzing trace with hash 157385897, now seen corresponding path program 1 times [2020-12-22 06:56:29,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333301796] [2020-12-22 06:56:29,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,262 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 06:56:30,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333301796] [2020-12-22 06:56:30,265 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:30,265 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:30,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324655047] [2020-12-22 06:56:30,271 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:30,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:30,294 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:30,297 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2020-12-22 06:56:30,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,329 INFO L93 Difference]: Finished difference Result 144 states and 215 transitions. [2020-12-22 06:56:30,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:30,331 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:30,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,347 INFO L225 Difference]: With dead ends: 144 [2020-12-22 06:56:30,348 INFO L226 Difference]: Without dead ends: 71 [2020-12-22 06:56:30,352 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 06:56:30,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2020-12-22 06:56:30,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2020-12-22 06:56:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2020-12-22 06:56:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 99 transitions. [2020-12-22 06:56:30,405 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 99 transitions. Word has length 16 [2020-12-22 06:56:30,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,406 INFO L481 AbstractCegarLoop]: Abstraction has 71 states and 99 transitions. [2020-12-22 06:56:30,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 99 transitions. [2020-12-22 06:56:30,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:30,408 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:30,408 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 06:56:30,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:30,409 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:30,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:30,410 INFO L82 PathProgramCache]: Analyzing trace with hash -889371000, now seen corresponding path program 1 times [2020-12-22 06:56:30,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:30,411 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691231336] [2020-12-22 06:56:30,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,526 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 06:56:30,527 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691231336] [2020-12-22 06:56:30,527 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:30,527 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:30,528 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [496888858] [2020-12-22 06:56:30,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:30,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:30,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:30,535 INFO L87 Difference]: Start difference. First operand 71 states and 99 transitions. Second operand 3 states. [2020-12-22 06:56:30,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,556 INFO L93 Difference]: Finished difference Result 71 states and 99 transitions. [2020-12-22 06:56:30,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:30,557 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:30,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,559 INFO L225 Difference]: With dead ends: 71 [2020-12-22 06:56:30,559 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 06:56:30,560 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 06:56:30,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 06:56:30,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 06:56:30,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 06:56:30,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 46 transitions. [2020-12-22 06:56:30,594 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 46 transitions. Word has length 17 [2020-12-22 06:56:30,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,595 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 46 transitions. [2020-12-22 06:56:30,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:30,596 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 46 transitions. [2020-12-22 06:56:30,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:30,597 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:30,598 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 06:56:30,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:30,598 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:30,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:30,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1255414035, now seen corresponding path program 1 times [2020-12-22 06:56:30,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:30,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507659067] [2020-12-22 06:56:30,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,782 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 06:56:30,782 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507659067] [2020-12-22 06:56:30,783 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:30,785 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:30,786 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732232906] [2020-12-22 06:56:30,786 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:30,786 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:30,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:30,788 INFO L87 Difference]: Start difference. First operand 33 states and 46 transitions. Second operand 3 states. [2020-12-22 06:56:30,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,821 INFO L93 Difference]: Finished difference Result 60 states and 86 transitions. [2020-12-22 06:56:30,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:30,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 06:56:30,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,823 INFO L225 Difference]: With dead ends: 60 [2020-12-22 06:56:30,823 INFO L226 Difference]: Without dead ends: 33 [2020-12-22 06:56:30,824 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 06:56:30,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-12-22 06:56:30,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-12-22 06:56:30,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-12-22 06:56:30,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 45 transitions. [2020-12-22 06:56:30,830 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 45 transitions. Word has length 22 [2020-12-22 06:56:30,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,830 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 45 transitions. [2020-12-22 06:56:30,830 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:30,830 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 45 transitions. [2020-12-22 06:56:30,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-12-22 06:56:30,831 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:30,831 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:30,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:30,832 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:30,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:30,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1242671319, now seen corresponding path program 1 times [2020-12-22 06:56:30,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:30,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179792916] [2020-12-22 06:56:30,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,934 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 06:56:30,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179792916] [2020-12-22 06:56:30,935 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:30,935 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:56:30,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979501789] [2020-12-22 06:56:30,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:56:30,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:56:30,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:30,944 INFO L87 Difference]: Start difference. First operand 33 states and 45 transitions. Second operand 7 states. [2020-12-22 06:56:31,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:31,170 INFO L93 Difference]: Finished difference Result 196 states and 293 transitions. [2020-12-22 06:56:31,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-22 06:56:31,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2020-12-22 06:56:31,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:31,173 INFO L225 Difference]: With dead ends: 196 [2020-12-22 06:56:31,173 INFO L226 Difference]: Without dead ends: 169 [2020-12-22 06:56:31,174 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-12-22 06:56:31,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-12-22 06:56:31,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 78. [2020-12-22 06:56:31,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-12-22 06:56:31,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 109 transitions. [2020-12-22 06:56:31,190 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 109 transitions. Word has length 23 [2020-12-22 06:56:31,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:31,190 INFO L481 AbstractCegarLoop]: Abstraction has 78 states and 109 transitions. [2020-12-22 06:56:31,191 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:56:31,191 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 109 transitions. [2020-12-22 06:56:31,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:31,192 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:31,192 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 06:56:31,192 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:31,193 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:31,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:31,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1939766951, now seen corresponding path program 1 times [2020-12-22 06:56:31,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:31,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861819240] [2020-12-22 06:56:31,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:31,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:31,248 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 06:56:31,248 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861819240] [2020-12-22 06:56:31,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:31,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:31,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972581593] [2020-12-22 06:56:31,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:31,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:31,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:31,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:31,251 INFO L87 Difference]: Start difference. First operand 78 states and 109 transitions. Second operand 3 states. [2020-12-22 06:56:31,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:31,264 INFO L93 Difference]: Finished difference Result 132 states and 186 transitions. [2020-12-22 06:56:31,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:31,265 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-12-22 06:56:31,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:31,266 INFO L225 Difference]: With dead ends: 132 [2020-12-22 06:56:31,266 INFO L226 Difference]: Without dead ends: 60 [2020-12-22 06:56:31,267 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 06:56:31,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2020-12-22 06:56:31,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 60. [2020-12-22 06:56:31,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-12-22 06:56:31,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 77 transitions. [2020-12-22 06:56:31,278 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 77 transitions. Word has length 24 [2020-12-22 06:56:31,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:31,281 INFO L481 AbstractCegarLoop]: Abstraction has 60 states and 77 transitions. [2020-12-22 06:56:31,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:31,282 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 77 transitions. [2020-12-22 06:56:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-12-22 06:56:31,284 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:31,284 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 06:56:31,285 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:31,285 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:31,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:31,286 INFO L82 PathProgramCache]: Analyzing trace with hash -2044306332, now seen corresponding path program 1 times [2020-12-22 06:56:31,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:31,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135152743] [2020-12-22 06:56:31,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:31,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:31,388 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 06:56:31,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135152743] [2020-12-22 06:56:31,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577066730] [2020-12-22 06:56:31,389 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 06:56:31,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:31,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:31,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:31,711 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 06:56:31,712 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:31,712 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:31,712 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639107408] [2020-12-22 06:56:31,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:31,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:31,714 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:31,715 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:31,715 INFO L87 Difference]: Start difference. First operand 60 states and 77 transitions. Second operand 4 states. [2020-12-22 06:56:31,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:31,832 INFO L93 Difference]: Finished difference Result 77 states and 100 transitions. [2020-12-22 06:56:31,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:31,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 39 [2020-12-22 06:56:31,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:31,834 INFO L225 Difference]: With dead ends: 77 [2020-12-22 06:56:31,834 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:31,835 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 06:56:31,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:31,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:31,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:31,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:31,836 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2020-12-22 06:56:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:31,836 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:31,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:31,837 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:32,044 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:32,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:32,441 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:32,441 INFO L189 CegarLoopUtils]: For program point L845(lines 845 849) no Hoare annotation was computed. [2020-12-22 06:56:32,448 INFO L189 CegarLoopUtils]: For program point L845-1(lines 139 145) no Hoare annotation was computed. [2020-12-22 06:56:32,448 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:32,448 INFO L189 CegarLoopUtils]: For program point L317(lines 317 321) no Hoare annotation was computed. [2020-12-22 06:56:32,448 INFO L189 CegarLoopUtils]: For program point L317-3(lines 317 321) no Hoare annotation was computed. [2020-12-22 06:56:32,448 INFO L189 CegarLoopUtils]: For program point L317-6(lines 317 321) no Hoare annotation was computed. [2020-12-22 06:56:32,448 INFO L189 CegarLoopUtils]: For program point L86(lines 86 92) no Hoare annotation was computed. [2020-12-22 06:56:32,449 INFO L185 CegarLoopUtils]: At program point L86-1(lines 86 92) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:32,449 INFO L189 CegarLoopUtils]: For program point L912(lines 912 919) no Hoare annotation was computed. [2020-12-22 06:56:32,449 INFO L192 CegarLoopUtils]: At program point L912-1(lines 912 919) the Hoare annotation is: true [2020-12-22 06:56:32,449 INFO L189 CegarLoopUtils]: For program point L104(lines 104 108) no Hoare annotation was computed. [2020-12-22 06:56:32,449 INFO L185 CegarLoopUtils]: At program point L104-2(lines 139 145) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:32,450 INFO L185 CegarLoopUtils]: At program point L451(lines 1 924) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:32,450 INFO L189 CegarLoopUtils]: For program point L171(lines 171 188) no Hoare annotation was computed. [2020-12-22 06:56:32,450 INFO L189 CegarLoopUtils]: For program point L171-1(lines 171 188) no Hoare annotation was computed. [2020-12-22 06:56:32,450 INFO L189 CegarLoopUtils]: For program point L171-2(lines 171 188) no Hoare annotation was computed. [2020-12-22 06:56:32,451 INFO L185 CegarLoopUtils]: At program point L386(lines 381 389) the Hoare annotation is: (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:32,451 INFO L185 CegarLoopUtils]: At program point L386-1(lines 381 389) the Hoare annotation is: false [2020-12-22 06:56:32,451 INFO L185 CegarLoopUtils]: At program point L386-2(lines 381 389) the Hoare annotation is: false [2020-12-22 06:56:32,451 INFO L185 CegarLoopUtils]: At program point L139(lines 138 157) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:32,451 INFO L189 CegarLoopUtils]: For program point L139-1(lines 139 145) no Hoare annotation was computed. [2020-12-22 06:56:32,452 INFO L185 CegarLoopUtils]: At program point L139-2(lines 138 157) the Hoare annotation is: false [2020-12-22 06:56:32,452 INFO L185 CegarLoopUtils]: At program point L139-3(lines 138 157) the Hoare annotation is: false [2020-12-22 06:56:32,452 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:32,452 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:32,453 INFO L189 CegarLoopUtils]: For program point L175(lines 175 183) no Hoare annotation was computed. [2020-12-22 06:56:32,453 INFO L189 CegarLoopUtils]: For program point L175-1(lines 175 183) no Hoare annotation was computed. [2020-12-22 06:56:32,453 INFO L189 CegarLoopUtils]: For program point L175-2(lines 175 183) no Hoare annotation was computed. [2020-12-22 06:56:32,453 INFO L189 CegarLoopUtils]: For program point L76(lines 76 82) no Hoare annotation was computed. [2020-12-22 06:56:32,453 INFO L185 CegarLoopUtils]: At program point L76-1(lines 76 82) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:32,453 INFO L189 CegarLoopUtils]: For program point L291(lines 291 295) no Hoare annotation was computed. [2020-12-22 06:56:32,453 INFO L189 CegarLoopUtils]: For program point L291-2(lines 291 295) no Hoare annotation was computed. [2020-12-22 06:56:32,454 INFO L189 CegarLoopUtils]: For program point L291-3(lines 291 295) no Hoare annotation was computed. [2020-12-22 06:56:32,454 INFO L189 CegarLoopUtils]: For program point L291-5(lines 291 295) no Hoare annotation was computed. [2020-12-22 06:56:32,454 INFO L189 CegarLoopUtils]: For program point L291-6(lines 291 295) no Hoare annotation was computed. [2020-12-22 06:56:32,454 INFO L189 CegarLoopUtils]: For program point L291-8(lines 291 295) no Hoare annotation was computed. [2020-12-22 06:56:32,454 INFO L189 CegarLoopUtils]: For program point L341(lines 341 345) no Hoare annotation was computed. [2020-12-22 06:56:32,454 INFO L185 CegarLoopUtils]: At program point L242(lines 237 245) the Hoare annotation is: false [2020-12-22 06:56:32,455 INFO L185 CegarLoopUtils]: At program point L242-1(lines 237 245) the Hoare annotation is: false [2020-12-22 06:56:32,455 INFO L185 CegarLoopUtils]: At program point L242-2(lines 237 245) the Hoare annotation is: false [2020-12-22 06:56:32,455 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:32,455 INFO L189 CegarLoopUtils]: For program point L408(lines 408 421) no Hoare annotation was computed. [2020-12-22 06:56:32,455 INFO L185 CegarLoopUtils]: At program point L408-1(lines 1 924) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 ~systemActive~0) .cse0 .cse1 .cse2) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~4 0))))) [2020-12-22 06:56:32,455 INFO L189 CegarLoopUtils]: For program point L408-2(lines 408 421) no Hoare annotation was computed. [2020-12-22 06:56:32,456 INFO L185 CegarLoopUtils]: At program point L408-3(lines 1 924) the Hoare annotation is: false [2020-12-22 06:56:32,456 INFO L189 CegarLoopUtils]: For program point L408-4(lines 408 421) no Hoare annotation was computed. [2020-12-22 06:56:32,456 INFO L185 CegarLoopUtils]: At program point L408-5(lines 1 924) the Hoare annotation is: false [2020-12-22 06:56:32,456 INFO L192 CegarLoopUtils]: At program point L921(lines 902 924) the Hoare annotation is: true [2020-12-22 06:56:32,456 INFO L189 CegarLoopUtils]: For program point L46(line 46) no Hoare annotation was computed. [2020-12-22 06:56:32,457 INFO L189 CegarLoopUtils]: For program point L46-1(line 46) no Hoare annotation was computed. [2020-12-22 06:56:32,457 INFO L189 CegarLoopUtils]: For program point L46-2(line 46) no Hoare annotation was computed. [2020-12-22 06:56:32,457 INFO L185 CegarLoopUtils]: At program point L459(lines 454 462) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:32,457 INFO L189 CegarLoopUtils]: For program point L96(lines 96 109) no Hoare annotation was computed. [2020-12-22 06:56:32,457 INFO L185 CegarLoopUtils]: At program point L889(lines 885 891) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:32,458 INFO L185 CegarLoopUtils]: At program point L146(lines 146 152) the Hoare annotation is: (and (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_test_~splverifierCounter~0 0)) [2020-12-22 06:56:32,459 INFO L185 CegarLoopUtils]: At program point L146-1(lines 146 152) the Hoare annotation is: false [2020-12-22 06:56:32,459 INFO L185 CegarLoopUtils]: At program point L146-2(lines 146 152) the Hoare annotation is: false [2020-12-22 06:56:32,459 INFO L185 CegarLoopUtils]: At program point L114(lines 65 115) the Hoare annotation is: false [2020-12-22 06:56:32,459 INFO L185 CegarLoopUtils]: At program point L395(lines 390 398) the Hoare annotation is: false [2020-12-22 06:56:32,459 INFO L185 CegarLoopUtils]: At program point L395-1(lines 390 398) the Hoare annotation is: false [2020-12-22 06:56:32,460 INFO L189 CegarLoopUtils]: For program point L329(lines 329 333) no Hoare annotation was computed. [2020-12-22 06:56:32,460 INFO L185 CegarLoopUtils]: At program point L395-2(lines 390 398) the Hoare annotation is: false [2020-12-22 06:56:32,460 INFO L185 CegarLoopUtils]: At program point L841-2(lines 841 855) the Hoare annotation is: false [2020-12-22 06:56:32,460 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:32,460 INFO L189 CegarLoopUtils]: For program point L412(lines 412 418) no Hoare annotation was computed. [2020-12-22 06:56:32,461 INFO L189 CegarLoopUtils]: For program point L412-2(lines 412 418) no Hoare annotation was computed. [2020-12-22 06:56:32,463 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 46) no Hoare annotation was computed. [2020-12-22 06:56:32,463 INFO L189 CegarLoopUtils]: For program point L412-4(lines 412 418) no Hoare annotation was computed. [2020-12-22 06:56:32,463 INFO L189 CegarLoopUtils]: For program point L842(line 842) no Hoare annotation was computed. [2020-12-22 06:56:32,463 INFO L185 CegarLoopUtils]: At program point L297(lines 282 300) the Hoare annotation is: false [2020-12-22 06:56:32,465 INFO L185 CegarLoopUtils]: At program point L297-1(lines 282 300) the Hoare annotation is: false [2020-12-22 06:56:32,465 INFO L185 CegarLoopUtils]: At program point L297-2(lines 282 300) the Hoare annotation is: false [2020-12-22 06:56:32,465 INFO L189 CegarLoopUtils]: For program point L67(lines 66 113) no Hoare annotation was computed. [2020-12-22 06:56:32,465 INFO L189 CegarLoopUtils]: For program point L68(lines 68 72) no Hoare annotation was computed. [2020-12-22 06:56:32,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:32 BoogieIcfgContainer [2020-12-22 06:56:32,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:32,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:32,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:32,514 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:32,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:29" (3/4) ... [2020-12-22 06:56:32,518 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:32,536 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:32,537 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:32,538 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:32,539 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:32,540 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:32,552 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:32,553 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:32,586 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) [2020-12-22 06:56:32,589 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-12-22 06:56:32,655 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product26.cil.c-witness.graphml [2020-12-22 06:56:32,655 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:32,657 INFO L168 Benchmark]: Toolchain (without parser) took 4970.99 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 125.8 MB in the beginning and 70.4 MB in the end (delta: 55.4 MB). Peak memory consumption was 93.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,658 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:32,658 INFO L168 Benchmark]: CACSL2BoogieTranslator took 601.87 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,659 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.16 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 102.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,659 INFO L168 Benchmark]: Boogie Preprocessor took 112.09 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 132.9 MB in the end (delta: -30.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,660 INFO L168 Benchmark]: RCFGBuilder took 1237.55 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 81.5 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,660 INFO L168 Benchmark]: TraceAbstraction took 2753.91 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 81.5 MB in the beginning and 76.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,661 INFO L168 Benchmark]: Witness Printer took 141.70 ms. Allocated memory is still 187.7 MB. Free memory was 76.7 MB in the beginning and 70.4 MB in the end (delta: 6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:32,663 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 151.0 MB. Free memory was 123.9 MB in the beginning and 123.8 MB in the end (delta: 77.6 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 601.87 ms. Allocated memory is still 151.0 MB. Free memory was 125.6 MB in the beginning and 105.0 MB in the end (delta: 20.6 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 106.16 ms. Allocated memory is still 151.0 MB. Free memory was 104.9 MB in the beginning and 102.0 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 112.09 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 132.9 MB in the end (delta: -30.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1237.55 ms. Allocated memory is still 151.0 MB. Free memory was 132.9 MB in the beginning and 81.5 MB in the end (delta: 51.4 MB). Peak memory consumption was 51.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2753.91 ms. Allocated memory was 151.0 MB in the beginning and 187.7 MB in the end (delta: 36.7 MB). Free memory was 81.5 MB in the beginning and 76.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 42.6 MB. Max. memory is 8.0 GB. * Witness Printer took 141.70 ms. Allocated memory is still 187.7 MB. Free memory was 76.7 MB in the beginning and 70.4 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: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 46]: 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: 902]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 841]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 912]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 885]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: (((!(\result == 0) && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || (((((!(\result == 0) && 1 == systemActive) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 237]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 454]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 282]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 86]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: ((1 == systemActive && pumpRunning == 0) && 1 <= waterLevel) && splverifierCounter == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 75 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 331 SDtfs, 408 SDslu, 309 SDs, 0 SdLazy, 85 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 64 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=78occurred 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, 91 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 31 PreInvPairs, 47 NumberOfFragments, 168 HoareAnnotationTreeSize, 31 FomulaSimplifications, 318 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 176 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 180 NumberOfCodeBlocks, 180 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 173 ConstructedInterpolants, 0 QuantifiedInterpolants, 10339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 378 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...