/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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:24,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:24,580 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:24,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:24,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:24,642 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:24,646 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:24,655 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:24,658 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:24,665 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:24,666 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:24,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:24,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:24,671 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:24,673 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:24,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:24,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:24,692 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:24,700 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:24,707 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:24,710 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:24,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:24,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:24,716 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:24,727 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:24,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:24,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:24,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:24,737 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:24,738 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:24,738 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:24,739 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:24,739 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:24,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:24,740 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:24,741 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:24,747 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:24,787 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:24,788 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:24,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:24,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:24,790 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:24,790 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:24,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:24,790 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:24,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:24,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:24,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:24,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:24,791 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:24,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:24,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:24,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:24,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:24,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:24,793 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:24,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:24,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:24,794 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:24,794 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:24,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:24,794 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:24,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:25,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:25,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:25,240 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:25,242 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:25,243 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:25,244 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c [2020-12-22 06:56:25,353 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4364a6b4f/a3b87d2dbc7a4cc6a188d7b97ed9a0a0/FLAG0846bd1bd [2020-12-22 06:56:26,082 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:26,083 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product22.cil.c [2020-12-22 06:56:26,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4364a6b4f/a3b87d2dbc7a4cc6a188d7b97ed9a0a0/FLAG0846bd1bd [2020-12-22 06:56:26,354 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4364a6b4f/a3b87d2dbc7a4cc6a188d7b97ed9a0a0 [2020-12-22 06:56:26,363 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:26,366 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:26,370 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:26,370 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:26,374 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:26,376 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:26,378 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f9d1a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26, skipping insertion in model container [2020-12-22 06:56:26,378 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:26,387 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:26,463 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:26,728 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_product22.cil.c[7691,7704] [2020-12-22 06:56:26,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:26,829 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:26,869 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_product22.cil.c[7691,7704] [2020-12-22 06:56:26,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:26,948 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:26,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26 WrapperNode [2020-12-22 06:56:26,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:26,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:26,950 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:26,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:26,961 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:26,999 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,070 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:27,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:27,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:27,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:27,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,091 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,092 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:27,124 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:27,125 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:27,125 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:27,125 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:27,126 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (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 06:56:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:27,229 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:27,230 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:27,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:28,321 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:28,321 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2020-12-22 06:56:28,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:28 BoogieIcfgContainer [2020-12-22 06:56:28,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:28,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:28,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:28,329 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:28,330 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:26" (1/3) ... [2020-12-22 06:56:28,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1229a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:28, skipping insertion in model container [2020-12-22 06:56:28,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:26" (2/3) ... [2020-12-22 06:56:28,331 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c1229a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 06:56:28, skipping insertion in model container [2020-12-22 06:56:28,331 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:28" (3/3) ... [2020-12-22 06:56:28,333 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product22.cil.c [2020-12-22 06:56:28,340 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:28,351 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:28,379 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:28,408 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:28,408 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:28,408 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:28,409 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:28,409 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:28,409 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:28,409 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:28,409 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:28,436 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states. [2020-12-22 06:56:28,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:28,446 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:28,447 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:28,447 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:28,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:28,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1818136157, now seen corresponding path program 1 times [2020-12-22 06:56:28,464 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:28,465 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [817718505] [2020-12-22 06:56:28,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:28,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:28,758 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 06:56:28,759 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [817718505] [2020-12-22 06:56:28,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:28,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:28,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056991856] [2020-12-22 06:56:28,766 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:28,767 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:28,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:28,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:28,792 INFO L87 Difference]: Start difference. First operand 105 states. Second operand 2 states. [2020-12-22 06:56:28,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:28,865 INFO L93 Difference]: Finished difference Result 204 states and 305 transitions. [2020-12-22 06:56:28,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:28,867 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:28,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:28,896 INFO L225 Difference]: With dead ends: 204 [2020-12-22 06:56:28,897 INFO L226 Difference]: Without dead ends: 101 [2020-12-22 06:56:28,901 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 06:56:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-12-22 06:56:29,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2020-12-22 06:56:29,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2020-12-22 06:56:29,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 144 transitions. [2020-12-22 06:56:29,007 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 144 transitions. Word has length 16 [2020-12-22 06:56:29,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,008 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 144 transitions. [2020-12-22 06:56:29,008 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:29,008 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 144 transitions. [2020-12-22 06:56:29,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:29,009 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,009 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 06:56:29,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:29,010 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,011 INFO L82 PathProgramCache]: Analyzing trace with hash 1430074242, now seen corresponding path program 1 times [2020-12-22 06:56:29,011 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,012 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546900171] [2020-12-22 06:56:29,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,152 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 06:56:29,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546900171] [2020-12-22 06:56:29,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:29,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984449986] [2020-12-22 06:56:29,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:29,155 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:29,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:29,156 INFO L87 Difference]: Start difference. First operand 101 states and 144 transitions. Second operand 3 states. [2020-12-22 06:56:29,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:29,168 INFO L93 Difference]: Finished difference Result 101 states and 144 transitions. [2020-12-22 06:56:29,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:29,169 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:29,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:29,170 INFO L225 Difference]: With dead ends: 101 [2020-12-22 06:56:29,170 INFO L226 Difference]: Without dead ends: 43 [2020-12-22 06:56:29,171 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 06:56:29,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-22 06:56:29,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-12-22 06:56:29,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-22 06:56:29,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 61 transitions. [2020-12-22 06:56:29,177 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 61 transitions. Word has length 17 [2020-12-22 06:56:29,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,178 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 61 transitions. [2020-12-22 06:56:29,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:29,178 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 61 transitions. [2020-12-22 06:56:29,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:29,179 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,179 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 06:56:29,179 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:29,180 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1358801466, now seen corresponding path program 1 times [2020-12-22 06:56:29,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069806483] [2020-12-22 06:56:29,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,353 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 06:56:29,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069806483] [2020-12-22 06:56:29,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-22 06:56:29,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429803252] [2020-12-22 06:56:29,354 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-22 06:56:29,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-22 06:56:29,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:29,356 INFO L87 Difference]: Start difference. First operand 43 states and 61 transitions. Second operand 5 states. [2020-12-22 06:56:29,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:29,430 INFO L93 Difference]: Finished difference Result 80 states and 116 transitions. [2020-12-22 06:56:29,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-22 06:56:29,433 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-12-22 06:56:29,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:29,434 INFO L225 Difference]: With dead ends: 80 [2020-12-22 06:56:29,435 INFO L226 Difference]: Without dead ends: 43 [2020-12-22 06:56:29,435 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:29,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-12-22 06:56:29,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-12-22 06:56:29,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-12-22 06:56:29,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 60 transitions. [2020-12-22 06:56:29,447 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 60 transitions. Word has length 22 [2020-12-22 06:56:29,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,447 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 60 transitions. [2020-12-22 06:56:29,447 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-22 06:56:29,447 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 60 transitions. [2020-12-22 06:56:29,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:29,450 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,450 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 06:56:29,450 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:29,451 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2042078472, now seen corresponding path program 1 times [2020-12-22 06:56:29,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,454 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413883843] [2020-12-22 06:56:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,620 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 06:56:29,622 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413883843] [2020-12-22 06:56:29,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-22 06:56:29,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772673818] [2020-12-22 06:56:29,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-12-22 06:56:29,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-12-22 06:56:29,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-12-22 06:56:29,628 INFO L87 Difference]: Start difference. First operand 43 states and 60 transitions. Second operand 8 states. [2020-12-22 06:56:29,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:29,968 INFO L93 Difference]: Finished difference Result 286 states and 428 transitions. [2020-12-22 06:56:29,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-22 06:56:29,968 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 24 [2020-12-22 06:56:29,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:29,971 INFO L225 Difference]: With dead ends: 286 [2020-12-22 06:56:29,971 INFO L226 Difference]: Without dead ends: 249 [2020-12-22 06:56:29,972 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-12-22 06:56:29,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2020-12-22 06:56:29,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 108. [2020-12-22 06:56:29,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 108 states. [2020-12-22 06:56:29,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 154 transitions. [2020-12-22 06:56:29,992 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 154 transitions. Word has length 24 [2020-12-22 06:56:29,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,992 INFO L481 AbstractCegarLoop]: Abstraction has 108 states and 154 transitions. [2020-12-22 06:56:29,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-12-22 06:56:29,993 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 154 transitions. [2020-12-22 06:56:29,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:56:29,994 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:29,995 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:29,995 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1913417034, now seen corresponding path program 1 times [2020-12-22 06:56:29,996 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,996 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062576993] [2020-12-22 06:56:29,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,098 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 06:56:30,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062576993] [2020-12-22 06:56:30,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:30,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:30,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091820736] [2020-12-22 06:56:30,100 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:30,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:30,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:30,103 INFO L87 Difference]: Start difference. First operand 108 states and 154 transitions. Second operand 3 states. [2020-12-22 06:56:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,121 INFO L93 Difference]: Finished difference Result 165 states and 237 transitions. [2020-12-22 06:56:30,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:30,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:56:30,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,124 INFO L225 Difference]: With dead ends: 165 [2020-12-22 06:56:30,124 INFO L226 Difference]: Without dead ends: 63 [2020-12-22 06:56:30,129 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 06:56:30,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2020-12-22 06:56:30,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2020-12-22 06:56:30,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2020-12-22 06:56:30,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 80 transitions. [2020-12-22 06:56:30,145 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 80 transitions. Word has length 25 [2020-12-22 06:56:30,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,145 INFO L481 AbstractCegarLoop]: Abstraction has 63 states and 80 transitions. [2020-12-22 06:56:30,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:30,146 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 80 transitions. [2020-12-22 06:56:30,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 06:56:30,147 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:30,147 INFO L422 BasicCegarLoop]: trace histogram [2, 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 06:56:30,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:30,148 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:30,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:30,148 INFO L82 PathProgramCache]: Analyzing trace with hash -1809526981, now seen corresponding path program 1 times [2020-12-22 06:56:30,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:30,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610755557] [2020-12-22 06:56:30,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 11 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:30,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610755557] [2020-12-22 06:56:30,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936527409] [2020-12-22 06:56:30,250 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 06:56:30,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:30,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:30,555 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-22 06:56:30,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:30,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:30,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112114908] [2020-12-22 06:56:30,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:30,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,557 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:30,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:30,558 INFO L87 Difference]: Start difference. First operand 63 states and 80 transitions. Second operand 4 states. [2020-12-22 06:56:30,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,707 INFO L93 Difference]: Finished difference Result 81 states and 104 transitions. [2020-12-22 06:56:30,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:30,708 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-12-22 06:56:30,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,708 INFO L225 Difference]: With dead ends: 81 [2020-12-22 06:56:30,709 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:30,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 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 06:56:30,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:30,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:30,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:30,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:30,710 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-12-22 06:56:30,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,710 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:30,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:30,711 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:30,711 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:30,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:30,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:31,418 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 537) no Hoare annotation was computed. [2020-12-22 06:56:31,418 INFO L189 CegarLoopUtils]: For program point L400(lines 400 406) no Hoare annotation was computed. [2020-12-22 06:56:31,424 INFO L185 CegarLoopUtils]: At program point L400-1(lines 400 406) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,425 INFO L185 CegarLoopUtils]: At program point L301(lines 296 304) the Hoare annotation is: false [2020-12-22 06:56:31,425 INFO L185 CegarLoopUtils]: At program point L301-1(lines 296 304) the Hoare annotation is: false [2020-12-22 06:56:31,425 INFO L185 CegarLoopUtils]: At program point L301-2(lines 296 304) the Hoare annotation is: false [2020-12-22 06:56:31,425 INFO L185 CegarLoopUtils]: At program point L171(lines 166 174) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res| ~waterLevel~0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-12-22 06:56:31,425 INFO L189 CegarLoopUtils]: For program point L537(line 537) no Hoare annotation was computed. [2020-12-22 06:56:31,426 INFO L189 CegarLoopUtils]: For program point L537-1(line 537) no Hoare annotation was computed. [2020-12-22 06:56:31,426 INFO L189 CegarLoopUtils]: For program point L537-2(line 537) no Hoare annotation was computed. [2020-12-22 06:56:31,427 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 537) no Hoare annotation was computed. [2020-12-22 06:56:31,427 INFO L189 CegarLoopUtils]: For program point L79(lines 79 83) no Hoare annotation was computed. [2020-12-22 06:56:31,427 INFO L189 CegarLoopUtils]: For program point L410(lines 410 423) no Hoare annotation was computed. [2020-12-22 06:56:31,428 INFO L189 CegarLoopUtils]: For program point L248(lines 248 265) no Hoare annotation was computed. [2020-12-22 06:56:31,428 INFO L189 CegarLoopUtils]: For program point L248-1(lines 248 265) no Hoare annotation was computed. [2020-12-22 06:56:31,428 INFO L189 CegarLoopUtils]: For program point L248-2(lines 248 265) no Hoare annotation was computed. [2020-12-22 06:56:31,428 INFO L189 CegarLoopUtils]: For program point L381(lines 380 427) no Hoare annotation was computed. [2020-12-22 06:56:31,428 INFO L189 CegarLoopUtils]: For program point L382(lines 382 386) no Hoare annotation was computed. [2020-12-22 06:56:31,428 INFO L185 CegarLoopUtils]: At program point L448-2(lines 448 462) the Hoare annotation is: false [2020-12-22 06:56:31,429 INFO L189 CegarLoopUtils]: For program point L449(line 449) no Hoare annotation was computed. [2020-12-22 06:56:31,429 INFO L189 CegarLoopUtils]: For program point L350(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,429 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,429 INFO L189 CegarLoopUtils]: For program point L350-2(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,430 INFO L189 CegarLoopUtils]: For program point L350-3(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,430 INFO L189 CegarLoopUtils]: For program point L350-5(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,430 INFO L189 CegarLoopUtils]: For program point L350-6(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-8(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-9(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-11(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-12(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-14(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-15(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L350-17(lines 350 354) no Hoare annotation was computed. [2020-12-22 06:56:31,431 INFO L189 CegarLoopUtils]: For program point L252(lines 252 260) no Hoare annotation was computed. [2020-12-22 06:56:31,432 INFO L189 CegarLoopUtils]: For program point L252-1(lines 252 260) no Hoare annotation was computed. [2020-12-22 06:56:31,432 INFO L189 CegarLoopUtils]: For program point L252-2(lines 252 260) no Hoare annotation was computed. [2020-12-22 06:56:31,432 INFO L189 CegarLoopUtils]: For program point L550(lines 550 563) no Hoare annotation was computed. [2020-12-22 06:56:31,433 INFO L185 CegarLoopUtils]: At program point L550-1(lines 1 932) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1)) (.cse4 (= ULTIMATE.start_main_~tmp~4 1))) (or (and (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3 .cse4) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~5 0)) .cse3 .cse4))) [2020-12-22 06:56:31,434 INFO L189 CegarLoopUtils]: For program point L550-2(lines 550 563) no Hoare annotation was computed. [2020-12-22 06:56:31,434 INFO L185 CegarLoopUtils]: At program point L550-3(lines 1 932) the Hoare annotation is: false [2020-12-22 06:56:31,434 INFO L189 CegarLoopUtils]: For program point L418(lines 418 422) no Hoare annotation was computed. [2020-12-22 06:56:31,435 INFO L189 CegarLoopUtils]: For program point L550-4(lines 550 563) no Hoare annotation was computed. [2020-12-22 06:56:31,435 INFO L185 CegarLoopUtils]: At program point L550-5(lines 1 932) the Hoare annotation is: false [2020-12-22 06:56:31,435 INFO L185 CegarLoopUtils]: At program point L418-2(lines 190 196) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,435 INFO L189 CegarLoopUtils]: For program point L55(lines 55 59) no Hoare annotation was computed. [2020-12-22 06:56:31,436 INFO L189 CegarLoopUtils]: For program point L55-3(lines 55 59) no Hoare annotation was computed. [2020-12-22 06:56:31,437 INFO L189 CegarLoopUtils]: For program point L55-6(lines 55 59) no Hoare annotation was computed. [2020-12-22 06:56:31,437 INFO L189 CegarLoopUtils]: For program point L452(lines 452 456) no Hoare annotation was computed. [2020-12-22 06:56:31,437 INFO L189 CegarLoopUtils]: For program point L452-1(lines 190 196) no Hoare annotation was computed. [2020-12-22 06:56:31,437 INFO L189 CegarLoopUtils]: For program point L519(lines 519 526) no Hoare annotation was computed. [2020-12-22 06:56:31,437 INFO L192 CegarLoopUtils]: At program point L519-1(lines 519 526) the Hoare annotation is: true [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point L222(lines 222 239) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point L222-1(lines 222 239) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point L222-2(lines 222 239) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point L222-3(lines 222 239) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point L222-4(lines 222 239) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point L222-5(lines 222 239) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,438 INFO L185 CegarLoopUtils]: At program point L190(lines 189 208) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,439 INFO L189 CegarLoopUtils]: For program point L190-1(lines 190 196) no Hoare annotation was computed. [2020-12-22 06:56:31,439 INFO L185 CegarLoopUtils]: At program point L124(lines 119 127) the Hoare annotation is: (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,439 INFO L185 CegarLoopUtils]: At program point L190-2(lines 189 208) the Hoare annotation is: false [2020-12-22 06:56:31,439 INFO L185 CegarLoopUtils]: At program point L124-1(lines 119 127) the Hoare annotation is: false [2020-12-22 06:56:31,439 INFO L185 CegarLoopUtils]: At program point L190-3(lines 189 208) the Hoare annotation is: false [2020-12-22 06:56:31,439 INFO L185 CegarLoopUtils]: At program point L124-2(lines 119 127) the Hoare annotation is: false [2020-12-22 06:56:31,439 INFO L189 CegarLoopUtils]: For program point L554(lines 554 560) no Hoare annotation was computed. [2020-12-22 06:56:31,440 INFO L189 CegarLoopUtils]: For program point L554-2(lines 554 560) no Hoare annotation was computed. [2020-12-22 06:56:31,440 INFO L189 CegarLoopUtils]: For program point L554-4(lines 554 560) no Hoare annotation was computed. [2020-12-22 06:56:31,440 INFO L185 CegarLoopUtils]: At program point L356(lines 341 359) the Hoare annotation is: false [2020-12-22 06:56:31,440 INFO L185 CegarLoopUtils]: At program point L356-1(lines 341 359) the Hoare annotation is: false [2020-12-22 06:56:31,440 INFO L185 CegarLoopUtils]: At program point L356-2(lines 341 359) the Hoare annotation is: false [2020-12-22 06:56:31,440 INFO L185 CegarLoopUtils]: At program point L356-3(lines 341 359) the Hoare annotation is: false [2020-12-22 06:56:31,440 INFO L185 CegarLoopUtils]: At program point L356-4(lines 341 359) the Hoare annotation is: false [2020-12-22 06:56:31,440 INFO L185 CegarLoopUtils]: At program point L356-5(lines 341 359) the Hoare annotation is: false [2020-12-22 06:56:31,441 INFO L185 CegarLoopUtils]: At program point L92(lines 87 95) the Hoare annotation is: false [2020-12-22 06:56:31,441 INFO L185 CegarLoopUtils]: At program point L92-1(lines 87 95) the Hoare annotation is: false [2020-12-22 06:56:31,441 INFO L185 CegarLoopUtils]: At program point L92-2(lines 87 95) the Hoare annotation is: false [2020-12-22 06:56:31,441 INFO L189 CegarLoopUtils]: For program point L390(lines 390 396) no Hoare annotation was computed. [2020-12-22 06:56:31,441 INFO L185 CegarLoopUtils]: At program point L390-1(lines 390 396) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,441 INFO L185 CegarLoopUtils]: At program point L292(lines 285 295) the Hoare annotation is: false [2020-12-22 06:56:31,442 INFO L185 CegarLoopUtils]: At program point L292-1(lines 285 295) the Hoare annotation is: false [2020-12-22 06:56:31,442 INFO L189 CegarLoopUtils]: For program point L226(lines 226 234) no Hoare annotation was computed. [2020-12-22 06:56:31,442 INFO L185 CegarLoopUtils]: At program point L292-2(lines 285 295) the Hoare annotation is: false [2020-12-22 06:56:31,443 INFO L189 CegarLoopUtils]: For program point L226-1(lines 226 234) no Hoare annotation was computed. [2020-12-22 06:56:31,443 INFO L189 CegarLoopUtils]: For program point L226-2(lines 226 234) no Hoare annotation was computed. [2020-12-22 06:56:31,443 INFO L189 CegarLoopUtils]: For program point L226-3(lines 226 234) no Hoare annotation was computed. [2020-12-22 06:56:31,443 INFO L189 CegarLoopUtils]: For program point L226-4(lines 226 234) no Hoare annotation was computed. [2020-12-22 06:56:31,443 INFO L189 CegarLoopUtils]: For program point L226-5(lines 226 234) no Hoare annotation was computed. [2020-12-22 06:56:31,443 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,443 INFO L185 CegarLoopUtils]: At program point L163(lines 1 932) the Hoare annotation is: (and (= ~waterLevel~0 1) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0)) [2020-12-22 06:56:31,443 INFO L185 CegarLoopUtils]: At program point L428(lines 379 429) the Hoare annotation is: false [2020-12-22 06:56:31,444 INFO L185 CegarLoopUtils]: At program point L197(lines 197 203) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,444 INFO L185 CegarLoopUtils]: At program point L197-1(lines 197 203) the Hoare annotation is: false [2020-12-22 06:56:31,444 INFO L185 CegarLoopUtils]: At program point L197-2(lines 197 203) the Hoare annotation is: false [2020-12-22 06:56:31,444 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,444 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 537) no Hoare annotation was computed. [2020-12-22 06:56:31,444 INFO L192 CegarLoopUtils]: At program point L528(lines 509 531) the Hoare annotation is: true [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L496(lines 492 498) the Hoare annotation is: (and (= ULTIMATE.start_main_~tmp~4 ~waterLevel~0) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1) (= ULTIMATE.start_main_~tmp~4 1)) [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L133(lines 128 136) the Hoare annotation is: false [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L133-1(lines 128 136) the Hoare annotation is: false [2020-12-22 06:56:31,445 INFO L189 CegarLoopUtils]: For program point L67(lines 67 71) no Hoare annotation was computed. [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L133-2(lines 128 136) the Hoare annotation is: false [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L133-3(lines 128 136) the Hoare annotation is: false [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L133-4(lines 128 136) the Hoare annotation is: false [2020-12-22 06:56:31,445 INFO L185 CegarLoopUtils]: At program point L133-5(lines 128 136) the Hoare annotation is: false [2020-12-22 06:56:31,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:31 BoogieIcfgContainer [2020-12-22 06:56:31,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:31,490 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:31,490 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:31,490 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:31,491 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:28" (3/4) ... [2020-12-22 06:56:31,494 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:31,525 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:31,526 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:31,527 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:31,528 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:31,529 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:31,530 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:31,531 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:31,559 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 [2020-12-22 06:56:31,560 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((tmp == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,560 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((tmp == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((((!(\result == 0) && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) && \result == 1) && tmp == 1) [2020-12-22 06:56:31,560 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,561 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,562 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,562 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,562 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,564 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 [2020-12-22 06:56:31,650 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product22.cil.c-witness.graphml [2020-12-22 06:56:31,650 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:31,652 INFO L168 Benchmark]: Toolchain (without parser) took 5285.74 ms. Allocated memory was 152.0 MB in the beginning and 196.1 MB in the end (delta: 44.0 MB). Free memory was 126.2 MB in the beginning and 129.0 MB in the end (delta: -2.8 MB). Peak memory consumption was 41.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,653 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:31,653 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.44 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 104.7 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,653 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.90 ms. Allocated memory is still 152.0 MB. Free memory was 104.7 MB in the beginning and 133.8 MB in the end (delta: -29.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,654 INFO L168 Benchmark]: Boogie Preprocessor took 50.40 ms. Allocated memory is still 152.0 MB. Free memory was 133.8 MB in the beginning and 131.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,654 INFO L168 Benchmark]: RCFGBuilder took 1198.56 ms. Allocated memory is still 152.0 MB. Free memory was 131.2 MB in the beginning and 72.4 MB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,655 INFO L168 Benchmark]: TraceAbstraction took 3163.85 ms. Allocated memory was 152.0 MB in the beginning and 196.1 MB in the end (delta: 44.0 MB). Free memory was 71.9 MB in the beginning and 138.4 MB in the end (delta: -66.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,655 INFO L168 Benchmark]: Witness Printer took 160.74 ms. Allocated memory is still 196.1 MB. Free memory was 138.4 MB in the beginning and 129.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,657 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 152.0 MB. Free memory is still 124.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 579.44 ms. Allocated memory is still 152.0 MB. Free memory was 125.9 MB in the beginning and 104.7 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 122.90 ms. Allocated memory is still 152.0 MB. Free memory was 104.7 MB in the beginning and 133.8 MB in the end (delta: -29.0 MB). Peak memory consumption was 6.7 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 50.40 ms. Allocated memory is still 152.0 MB. Free memory was 133.8 MB in the beginning and 131.2 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1198.56 ms. Allocated memory is still 152.0 MB. Free memory was 131.2 MB in the beginning and 72.4 MB in the end (delta: 58.7 MB). Peak memory consumption was 58.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3163.85 ms. Allocated memory was 152.0 MB in the beginning and 196.1 MB in the end (delta: 44.0 MB). Free memory was 71.9 MB in the beginning and 138.4 MB in the end (delta: -66.5 MB). Peak memory consumption was 51.5 MB. Max. memory is 8.0 GB. * Witness Printer took 160.74 ms. Allocated memory is still 196.1 MB. Free memory was 138.4 MB in the beginning and 129.0 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 537]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 537]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 537]: 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: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 119]: Loop Invariant Derived loop invariant: (((((!(\result == 0) && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 190]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 189]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 448]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 166]: Loop Invariant Derived loop invariant: ((\result == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 519]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 296]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 509]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((tmp == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && \result == 1) && tmp == 1) || (((((((!(\result == 0) && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && !(tmp == 0)) && \result == 1) && tmp == 1) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 400]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - InvariantResult [Line: 285]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 87]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 379]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0 - InvariantResult [Line: 492]: Loop Invariant Derived loop invariant: (((tmp == waterLevel && !(0 == systemActive)) && pumpRunning == 0) && \result == 1) && tmp == 1 - InvariantResult [Line: 390]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) && tmp == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 105 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 434 SDtfs, 774 SDslu, 534 SDs, 0 SdLazy, 114 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred 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, 141 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 43 PreInvPairs, 59 NumberOfFragments, 248 HoareAnnotationTreeSize, 43 FomulaSimplifications, 448 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 43 FomulaSimplificationsInter, 239 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 11621 SizeOfPredicates, 0 NumberOfNonLiveVariables, 382 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 7 InterpolantComputations, 6 PerfectInterpolantSequences, 27/32 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...