/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:55:24,668 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:55:24,671 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:55:24,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:55:24,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:55:24,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:55:24,723 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:55:24,725 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:55:24,729 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:55:24,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:55:24,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:55:24,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:55:24,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:55:24,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:55:24,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:55:24,745 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:55:24,748 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:55:24,749 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:55:24,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:55:24,758 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:55:24,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:55:24,768 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:55:24,771 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:55:24,772 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:55:24,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:55:24,787 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:55:24,788 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:55:24,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:55:24,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:55:24,792 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:55:24,792 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:55:24,793 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:55:24,793 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:55:24,793 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:55:24,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:55:24,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:55:24,796 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:55:24,843 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:55:24,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:55:24,848 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:55:24,849 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:55:24,849 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:55:24,849 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:55:24,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:55:24,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:55:24,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:55:24,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:55:24,851 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:55:24,851 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:55:24,851 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:55:24,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:55:24,852 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:55:24,852 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:55:24,852 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:55:24,852 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:24,853 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:55:24,853 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:55:24,853 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:55:24,853 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:55:24,853 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:55:24,853 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:55:24,854 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:55:24,854 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:55:25,223 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:55:25,249 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:55:25,252 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:55:25,253 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:55:25,254 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:55:25,255 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-12-22 06:55:25,328 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300fdfb23/8f6678dd3e434e6ea5d2cd3d519e1362/FLAG8089873d0 [2020-12-22 06:55:26,101 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:55:26,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c [2020-12-22 06:55:26,124 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300fdfb23/8f6678dd3e434e6ea5d2cd3d519e1362/FLAG8089873d0 [2020-12-22 06:55:26,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/300fdfb23/8f6678dd3e434e6ea5d2cd3d519e1362 [2020-12-22 06:55:26,428 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:55:26,430 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:55:26,431 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:26,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:55:26,435 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:55:26,436 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:26,437 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b1b34a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26, skipping insertion in model container [2020-12-22 06:55:26,437 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:26,446 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:55:26,488 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:55:26,785 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13493,13506] [2020-12-22 06:55:26,840 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:26,851 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:55:26,914 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product21.cil.c[13493,13506] [2020-12-22 06:55:26,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:55:26,968 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:55:26,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26 WrapperNode [2020-12-22 06:55:26,969 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:55:26,970 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:26,970 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:55:26,970 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:55:26,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:26,997 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,057 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:55:27,058 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:55:27,058 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:55:27,058 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:55:27,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,102 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... [2020-12-22 06:55:27,119 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:55:27,121 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:55:27,121 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:55:27,121 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:55:27,122 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:55:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:55:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:55:27,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:55:27,263 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:55:28,283 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:55:28,284 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2020-12-22 06:55:28,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:28 BoogieIcfgContainer [2020-12-22 06:55:28,286 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:55:28,288 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:55:28,288 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:55:28,292 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:55:28,292 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:55:26" (1/3) ... [2020-12-22 06:55:28,293 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d500ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:28, skipping insertion in model container [2020-12-22 06:55:28,293 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:55:26" (2/3) ... [2020-12-22 06:55:28,294 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d500ea4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:55:28, skipping insertion in model container [2020-12-22 06:55:28,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:28" (3/3) ... [2020-12-22 06:55:28,296 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product21.cil.c [2020-12-22 06:55:28,303 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:55:28,309 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:55:28,330 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:55:28,361 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:55:28,361 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:55:28,361 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:55:28,362 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:55:28,362 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:55:28,362 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:55:28,362 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:55:28,362 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:55:28,382 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states. [2020-12-22 06:55:28,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-22 06:55:28,389 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:28,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:28,391 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:28,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:28,397 INFO L82 PathProgramCache]: Analyzing trace with hash -1669144853, now seen corresponding path program 1 times [2020-12-22 06:55:28,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:28,408 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635742003] [2020-12-22 06:55:28,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:28,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:28,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:28,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635742003] [2020-12-22 06:55:28,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:28,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:55:28,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115456984] [2020-12-22 06:55:28,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:55:28,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:28,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:55:28,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:28,758 INFO L87 Difference]: Start difference. First operand 111 states. Second operand 2 states. [2020-12-22 06:55:28,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:28,794 INFO L93 Difference]: Finished difference Result 216 states and 323 transitions. [2020-12-22 06:55:28,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:55:28,796 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2020-12-22 06:55:28,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:28,808 INFO L225 Difference]: With dead ends: 216 [2020-12-22 06:55:28,809 INFO L226 Difference]: Without dead ends: 107 [2020-12-22 06:55:28,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:55:28,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2020-12-22 06:55:28,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2020-12-22 06:55:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 107 states. [2020-12-22 06:55:28,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 153 transitions. [2020-12-22 06:55:28,879 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 153 transitions. Word has length 18 [2020-12-22 06:55:28,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:28,880 INFO L481 AbstractCegarLoop]: Abstraction has 107 states and 153 transitions. [2020-12-22 06:55:28,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:55:28,880 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 153 transitions. [2020-12-22 06:55:28,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-12-22 06:55:28,881 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:28,882 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:28,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:55:28,882 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:28,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:28,883 INFO L82 PathProgramCache]: Analyzing trace with hash 1714791690, now seen corresponding path program 1 times [2020-12-22 06:55:28,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:28,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122436250] [2020-12-22 06:55:28,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:28,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:29,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:29,049 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122436250] [2020-12-22 06:55:29,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:29,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:55:29,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337050820] [2020-12-22 06:55:29,051 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:55:29,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:29,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:55:29,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:29,055 INFO L87 Difference]: Start difference. First operand 107 states and 153 transitions. Second operand 3 states. [2020-12-22 06:55:29,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:29,081 INFO L93 Difference]: Finished difference Result 107 states and 153 transitions. [2020-12-22 06:55:29,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:55:29,083 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-12-22 06:55:29,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:29,086 INFO L225 Difference]: With dead ends: 107 [2020-12-22 06:55:29,087 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 06:55:29,089 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:55:29,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 06:55:29,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 06:55:29,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 06:55:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-12-22 06:55:29,099 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 19 [2020-12-22 06:55:29,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:29,100 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-12-22 06:55:29,100 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:55:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-12-22 06:55:29,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:55:29,104 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:29,104 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:29,104 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:55:29,105 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:29,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:29,107 INFO L82 PathProgramCache]: Analyzing trace with hash -458606052, now seen corresponding path program 1 times [2020-12-22 06:55:29,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:29,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440562672] [2020-12-22 06:55:29,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:29,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:29,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:29,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440562672] [2020-12-22 06:55:29,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:29,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:55:29,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339113318] [2020-12-22 06:55:29,321 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-22 06:55:29,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:29,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-22 06:55:29,323 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-12-22 06:55:29,323 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 6 states. [2020-12-22 06:55:29,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:29,566 INFO L93 Difference]: Finished difference Result 84 states and 122 transitions. [2020-12-22 06:55:29,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:55:29,569 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-12-22 06:55:29,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:29,571 INFO L225 Difference]: With dead ends: 84 [2020-12-22 06:55:29,571 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 06:55:29,573 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 06:55:29,573 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 06:55:29,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 06:55:29,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 06:55:29,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 63 transitions. [2020-12-22 06:55:29,583 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 63 transitions. Word has length 24 [2020-12-22 06:55:29,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:29,585 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 63 transitions. [2020-12-22 06:55:29,585 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-22 06:55:29,585 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 63 transitions. [2020-12-22 06:55:29,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-12-22 06:55:29,587 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:29,587 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:29,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:55:29,588 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:29,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:29,589 INFO L82 PathProgramCache]: Analyzing trace with hash 708469066, now seen corresponding path program 1 times [2020-12-22 06:55:29,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:29,590 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573825402] [2020-12-22 06:55:29,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:29,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:55:29,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:55:29,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573825402] [2020-12-22 06:55:29,716 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:55:29,716 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-22 06:55:29,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057546726] [2020-12-22 06:55:29,717 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:55:29,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:55:29,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:55:29,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:55:29,721 INFO L87 Difference]: Start difference. First operand 45 states and 63 transitions. Second operand 5 states. [2020-12-22 06:55:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:55:29,843 INFO L93 Difference]: Finished difference Result 242 states and 360 transitions. [2020-12-22 06:55:29,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-12-22 06:55:29,844 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-12-22 06:55:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:55:29,846 INFO L225 Difference]: With dead ends: 242 [2020-12-22 06:55:29,846 INFO L226 Difference]: Without dead ends: 203 [2020-12-22 06:55:29,847 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:55:29,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-12-22 06:55:29,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 80. [2020-12-22 06:55:29,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:55:29,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 113 transitions. [2020-12-22 06:55:29,864 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 113 transitions. Word has length 26 [2020-12-22 06:55:29,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:55:29,864 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 113 transitions. [2020-12-22 06:55:29,864 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:55:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 113 transitions. [2020-12-22 06:55:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-12-22 06:55:29,866 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:55:29,866 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:55:29,866 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:55:29,867 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:55:29,867 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:55:29,867 INFO L82 PathProgramCache]: Analyzing trace with hash 99432520, now seen corresponding path program 1 times [2020-12-22 06:55:29,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:55:29,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089306063] [2020-12-22 06:55:29,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:55:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:29,948 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-22 06:55:30,035 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-22 06:55:30,091 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-22 06:55:30,091 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-22 06:55:30,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:55:30,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:55:30 BoogieIcfgContainer [2020-12-22 06:55:30,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:55:30,230 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:55:30,230 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:55:30,232 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:55:30,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:55:28" (3/4) ... [2020-12-22 06:55:30,235 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-22 06:55:30,357 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec3_product21.cil.c-witness.graphml [2020-12-22 06:55:30,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:55:30,363 INFO L168 Benchmark]: Toolchain (without parser) took 3929.62 ms. Allocated memory was 174.1 MB in the beginning and 233.8 MB in the end (delta: 59.8 MB). Free memory was 147.9 MB in the beginning and 127.9 MB in the end (delta: 20.1 MB). Peak memory consumption was 82.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,363 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 174.1 MB. Free memory is still 145.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:55:30,364 INFO L168 Benchmark]: CACSL2BoogieTranslator took 537.72 ms. Allocated memory is still 174.1 MB. Free memory was 147.8 MB in the beginning and 127.2 MB in the end (delta: 20.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,364 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.37 ms. Allocated memory is still 174.1 MB. Free memory was 127.2 MB in the beginning and 123.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,365 INFO L168 Benchmark]: Boogie Preprocessor took 61.73 ms. Allocated memory is still 174.1 MB. Free memory was 123.5 MB in the beginning and 120.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,365 INFO L168 Benchmark]: RCFGBuilder took 1165.60 ms. Allocated memory is still 174.1 MB. Free memory was 120.8 MB in the beginning and 94.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,366 INFO L168 Benchmark]: TraceAbstraction took 1938.81 ms. Allocated memory was 174.1 MB in the beginning and 233.8 MB in the end (delta: 59.8 MB). Free memory was 94.1 MB in the beginning and 139.4 MB in the end (delta: -45.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,366 INFO L168 Benchmark]: Witness Printer took 127.56 ms. Allocated memory is still 233.8 MB. Free memory was 139.4 MB in the beginning and 127.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:55:30,369 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 174.1 MB. Free memory is still 145.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 537.72 ms. Allocated memory is still 174.1 MB. Free memory was 147.8 MB in the beginning and 127.2 MB in the end (delta: 20.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 87.37 ms. Allocated memory is still 174.1 MB. Free memory was 127.2 MB in the beginning and 123.5 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 61.73 ms. Allocated memory is still 174.1 MB. Free memory was 123.5 MB in the beginning and 120.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1165.60 ms. Allocated memory is still 174.1 MB. Free memory was 120.8 MB in the beginning and 94.6 MB in the end (delta: 26.2 MB). Peak memory consumption was 25.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 1938.81 ms. Allocated memory was 174.1 MB in the beginning and 233.8 MB in the end (delta: 59.8 MB). Free memory was 94.1 MB in the beginning and 139.4 MB in the end (delta: -45.3 MB). Peak memory consumption was 15.5 MB. Max. memory is 8.0 GB. * Witness Printer took 127.56 ms. Allocated memory is still 233.8 MB. Free memory was 139.4 MB in the beginning and 127.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 600]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L417] int pumpRunning = 0; [L418] int systemActive = 1; [L674] int waterLevel = 1; [L675] int methaneLevelCritical = 0; [L763] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L839] int retValue_acc ; [L840] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L922] int retValue_acc ; [L925] retValue_acc = 1 [L926] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L846] tmp = valid_product() [L848] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L609] int splverifierCounter ; [L610] int tmp ; [L611] int tmp___0 ; [L612] int tmp___1 ; [L613] int tmp___2 ; [L616] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L618] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L620] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L626] tmp = __VERIFIER_nondet_int() [L628] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L692] COND TRUE waterLevel < 2 [L693] waterLevel = waterLevel + 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L636] tmp___0 = __VERIFIER_nondet_int() [L638] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L646] tmp___2 = __VERIFIER_nondet_int() [L648] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L425] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] COND TRUE \read(systemActive) [L480] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L483] COND FALSE !(\read(pumpRunning)) [L454] int tmp ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L457] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L863] int tmp ; [L864] int tmp___0 ; [L865] int tmp___1 ; [L713] int retValue_acc ; [L716] retValue_acc = methaneLevelCritical [L717] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L869] tmp = isMethaneLevelCritical() [L871] COND FALSE !(\read(tmp)) [L745] int retValue_acc ; [L748] retValue_acc = waterLevel [L749] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L875] tmp___0 = getWaterLevel() [L877] COND TRUE tmp___0 == 2 [L532] int retValue_acc ; [L535] retValue_acc = pumpRunning [L536] return (retValue_acc); VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] tmp___1 = isPumpRunning() [L881] COND FALSE !(\read(tmp___1)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L600] reach_error() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 111 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 382 SDtfs, 533 SDslu, 255 SDs, 0 SdLazy, 55 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=111occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 123 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 114 NumberOfCodeBlocks, 114 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 3882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...