/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_product24.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-22 06:56:25,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-22 06:56:25,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-22 06:56:25,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-22 06:56:25,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-22 06:56:25,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-22 06:56:25,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-22 06:56:25,118 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-22 06:56:25,120 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-22 06:56:25,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-22 06:56:25,123 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-22 06:56:25,125 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-22 06:56:25,125 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-22 06:56:25,127 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-22 06:56:25,128 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-22 06:56:25,130 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-22 06:56:25,131 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-22 06:56:25,133 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-22 06:56:25,151 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-22 06:56:25,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-22 06:56:25,164 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-22 06:56:25,166 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-22 06:56:25,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-22 06:56:25,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-22 06:56:25,178 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-22 06:56:25,189 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-22 06:56:25,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-22 06:56:25,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-22 06:56:25,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-22 06:56:25,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-22 06:56:25,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-22 06:56:25,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-22 06:56:25,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-22 06:56:25,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-22 06:56:25,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-22 06:56:25,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-22 06:56:25,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-22 06:56:25,257 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-22 06:56:25,257 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-22 06:56:25,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-22 06:56:25,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-22 06:56:25,262 INFO L138 SettingsManager]: * Use SBE=true [2020-12-22 06:56:25,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-22 06:56:25,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-22 06:56:25,263 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-22 06:56:25,263 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-22 06:56:25,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-22 06:56:25,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-22 06:56:25,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-22 06:56:25,265 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-22 06:56:25,266 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-22 06:56:25,266 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-22 06:56:25,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-22 06:56:25,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-22 06:56:25,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-22 06:56:25,267 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-22 06:56:25,267 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-22 06:56:25,267 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-22 06:56:25,267 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-22 06:56:25,268 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-22 06:56:25,268 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-22 06:56:25,268 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-22 06:56:25,268 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-22 06:56:25,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-22 06:56:25,742 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-22 06:56:25,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-22 06:56:25,747 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-22 06:56:25,748 INFO L275 PluginConnector]: CDTParser initialized [2020-12-22 06:56:25,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c [2020-12-22 06:56:25,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b0c7737/93399f8fb8134370a33b6bf9d9496cbf/FLAG55dcb36b3 [2020-12-22 06:56:26,649 INFO L306 CDTParser]: Found 1 translation units. [2020-12-22 06:56:26,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product24.cil.c [2020-12-22 06:56:26,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b0c7737/93399f8fb8134370a33b6bf9d9496cbf/FLAG55dcb36b3 [2020-12-22 06:56:26,681 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6b0c7737/93399f8fb8134370a33b6bf9d9496cbf [2020-12-22 06:56:26,683 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-22 06:56:26,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-22 06:56:26,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:26,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-22 06:56:26,692 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-22 06:56:26,693 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:26,694 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@310483ec 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 06:56:26,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 06:56:26" (1/1) ... [2020-12-22 06:56:26,707 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-22 06:56:26,750 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-22 06:56:27,096 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_product24.cil.c[17936,17949] [2020-12-22 06:56:27,100 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:27,119 INFO L203 MainTranslator]: Completed pre-run [2020-12-22 06:56:27,201 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_product24.cil.c[17936,17949] [2020-12-22 06:56:27,202 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-22 06:56:27,254 INFO L208 MainTranslator]: Completed translation [2020-12-22 06:56:27,255 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27 WrapperNode [2020-12-22 06:56:27,256 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-22 06:56:27,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:27,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-22 06:56:27,262 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-22 06:56:27,271 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,359 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-22 06:56:27,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-22 06:56:27,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-22 06:56:27,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-22 06:56:27,424 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (1/1) ... [2020-12-22 06:56:27,488 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-22 06:56:27,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-22 06:56:27,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-22 06:56:27,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-22 06:56:27,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (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 06:56:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-22 06:56:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-22 06:56:27,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-22 06:56:27,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-22 06:56:28,829 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-22 06:56:28,830 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2020-12-22 06:56:28,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 06:56:28 BoogieIcfgContainer [2020-12-22 06:56:28,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-22 06:56:28,835 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-22 06:56:28,835 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-22 06:56:28,839 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-22 06:56:28,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 06:56:26" (1/3) ... [2020-12-22 06:56:28,840 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519ee380 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 06:56:28,840 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 06:56:27" (2/3) ... [2020-12-22 06:56:28,841 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519ee380 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 06:56:28,841 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 06:56:28,843 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product24.cil.c [2020-12-22 06:56:28,850 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-22 06:56:28,856 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-12-22 06:56:28,881 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-12-22 06:56:28,912 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-22 06:56:28,912 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-22 06:56:28,913 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-22 06:56:28,913 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-22 06:56:28,913 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-22 06:56:28,913 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-22 06:56:28,913 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-22 06:56:28,913 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-22 06:56:28,933 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states. [2020-12-22 06:56:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-22 06:56:28,940 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:28,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-22 06:56:28,941 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:28,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:28,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1528758621, now seen corresponding path program 1 times [2020-12-22 06:56:28,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:28,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [192447778] [2020-12-22 06:56:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,258 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 06:56:29,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [192447778] [2020-12-22 06:56:29,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:29,261 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264398203] [2020-12-22 06:56:29,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-12-22 06:56:29,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-12-22 06:56:29,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-12-22 06:56:29,285 INFO L87 Difference]: Start difference. First operand 107 states. Second operand 2 states. [2020-12-22 06:56:29,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:29,323 INFO L93 Difference]: Finished difference Result 208 states and 311 transitions. [2020-12-22 06:56:29,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-12-22 06:56:29,325 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-12-22 06:56:29,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:29,338 INFO L225 Difference]: With dead ends: 208 [2020-12-22 06:56:29,339 INFO L226 Difference]: Without dead ends: 103 [2020-12-22 06:56:29,346 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 06:56:29,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-12-22 06:56:29,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 103. [2020-12-22 06:56:29,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 103 states. [2020-12-22 06:56:29,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 147 transitions. [2020-12-22 06:56:29,427 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 147 transitions. Word has length 16 [2020-12-22 06:56:29,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,428 INFO L481 AbstractCegarLoop]: Abstraction has 103 states and 147 transitions. [2020-12-22 06:56:29,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-12-22 06:56:29,428 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 147 transitions. [2020-12-22 06:56:29,429 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-12-22 06:56:29,430 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,430 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 06:56:29,430 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-22 06:56:29,431 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,432 INFO L82 PathProgramCache]: Analyzing trace with hash 512126731, now seen corresponding path program 1 times [2020-12-22 06:56:29,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146783890] [2020-12-22 06:56:29,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,545 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 06:56:29,545 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146783890] [2020-12-22 06:56:29,545 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,545 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:29,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349423846] [2020-12-22 06:56:29,547 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:29,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:29,549 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:29,549 INFO L87 Difference]: Start difference. First operand 103 states and 147 transitions. Second operand 3 states. [2020-12-22 06:56:29,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:29,563 INFO L93 Difference]: Finished difference Result 103 states and 147 transitions. [2020-12-22 06:56:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:29,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-12-22 06:56:29,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:29,565 INFO L225 Difference]: With dead ends: 103 [2020-12-22 06:56:29,565 INFO L226 Difference]: Without dead ends: 45 [2020-12-22 06:56:29,567 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 06:56:29,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2020-12-22 06:56:29,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2020-12-22 06:56:29,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-12-22 06:56:29,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 64 transitions. [2020-12-22 06:56:29,574 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 64 transitions. Word has length 17 [2020-12-22 06:56:29,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,574 INFO L481 AbstractCegarLoop]: Abstraction has 45 states and 64 transitions. [2020-12-22 06:56:29,574 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:29,574 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 64 transitions. [2020-12-22 06:56:29,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-12-22 06:56:29,575 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,576 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 06:56:29,576 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-22 06:56:29,576 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,577 INFO L82 PathProgramCache]: Analyzing trace with hash -471925062, now seen corresponding path program 1 times [2020-12-22 06:56:29,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,578 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310253290] [2020-12-22 06:56:29,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,705 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 06:56:29,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [310253290] [2020-12-22 06:56:29,706 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,706 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-22 06:56:29,706 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873054854] [2020-12-22 06:56:29,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:29,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:29,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:29,708 INFO L87 Difference]: Start difference. First operand 45 states and 64 transitions. Second operand 3 states. [2020-12-22 06:56:29,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:29,745 INFO L93 Difference]: Finished difference Result 123 states and 180 transitions. [2020-12-22 06:56:29,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:29,746 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2020-12-22 06:56:29,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:29,747 INFO L225 Difference]: With dead ends: 123 [2020-12-22 06:56:29,748 INFO L226 Difference]: Without dead ends: 84 [2020-12-22 06:56:29,748 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 06:56:29,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-12-22 06:56:29,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 80. [2020-12-22 06:56:29,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-12-22 06:56:29,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 117 transitions. [2020-12-22 06:56:29,762 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 117 transitions. Word has length 22 [2020-12-22 06:56:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:29,762 INFO L481 AbstractCegarLoop]: Abstraction has 80 states and 117 transitions. [2020-12-22 06:56:29,763 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 117 transitions. [2020-12-22 06:56:29,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-12-22 06:56:29,764 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:29,764 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 06:56:29,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-22 06:56:29,765 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:29,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:29,766 INFO L82 PathProgramCache]: Analyzing trace with hash -644490584, now seen corresponding path program 1 times [2020-12-22 06:56:29,766 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:29,766 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226741072] [2020-12-22 06:56:29,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:29,876 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 06:56:29,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226741072] [2020-12-22 06:56:29,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:29,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-22 06:56:29,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315506528] [2020-12-22 06:56:29,878 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-22 06:56:29,878 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:29,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-22 06:56:29,879 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-12-22 06:56:29,879 INFO L87 Difference]: Start difference. First operand 80 states and 117 transitions. Second operand 7 states. [2020-12-22 06:56:30,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,196 INFO L93 Difference]: Finished difference Result 571 states and 870 transitions. [2020-12-22 06:56:30,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-12-22 06:56:30,197 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2020-12-22 06:56:30,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,206 INFO L225 Difference]: With dead ends: 571 [2020-12-22 06:56:30,206 INFO L226 Difference]: Without dead ends: 497 [2020-12-22 06:56:30,211 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2020-12-22 06:56:30,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497 states. [2020-12-22 06:56:30,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497 to 214. [2020-12-22 06:56:30,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 214 states. [2020-12-22 06:56:30,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 313 transitions. [2020-12-22 06:56:30,258 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 313 transitions. Word has length 24 [2020-12-22 06:56:30,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,258 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 313 transitions. [2020-12-22 06:56:30,258 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-22 06:56:30,259 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 313 transitions. [2020-12-22 06:56:30,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-12-22 06:56:30,261 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:30,261 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 06:56:30,261 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-22 06:56:30,261 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:30,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:30,262 INFO L82 PathProgramCache]: Analyzing trace with hash 234154931, now seen corresponding path program 1 times [2020-12-22 06:56:30,262 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:30,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390586037] [2020-12-22 06:56:30,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,358 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 06:56:30,358 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390586037] [2020-12-22 06:56:30,360 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-22 06:56:30,360 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-22 06:56:30,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970553433] [2020-12-22 06:56:30,361 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-22 06:56:30,361 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-22 06:56:30,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-22 06:56:30,365 INFO L87 Difference]: Start difference. First operand 214 states and 313 transitions. Second operand 3 states. [2020-12-22 06:56:30,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,387 INFO L93 Difference]: Finished difference Result 332 states and 490 transitions. [2020-12-22 06:56:30,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-22 06:56:30,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2020-12-22 06:56:30,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,389 INFO L225 Difference]: With dead ends: 332 [2020-12-22 06:56:30,389 INFO L226 Difference]: Without dead ends: 124 [2020-12-22 06:56:30,390 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 06:56:30,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-12-22 06:56:30,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-12-22 06:56:30,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-12-22 06:56:30,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 162 transitions. [2020-12-22 06:56:30,404 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 162 transitions. Word has length 25 [2020-12-22 06:56:30,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,404 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 162 transitions. [2020-12-22 06:56:30,404 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-22 06:56:30,405 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 162 transitions. [2020-12-22 06:56:30,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-12-22 06:56:30,407 INFO L414 BasicCegarLoop]: Found error trace [2020-12-22 06:56:30,407 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 06:56:30,407 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-22 06:56:30,407 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-22 06:56:30,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-22 06:56:30,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1927989650, now seen corresponding path program 1 times [2020-12-22 06:56:30,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-22 06:56:30,409 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461575555] [2020-12-22 06:56:30,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-22 06:56:30,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,473 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 06:56:30,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461575555] [2020-12-22 06:56:30,474 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173936095] [2020-12-22 06:56:30,474 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 06:56:30,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-22 06:56:30,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-22 06:56:30,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-22 06:56:30,742 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 06:56:30,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-22 06:56:30,743 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2020-12-22 06:56:30,743 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167928787] [2020-12-22 06:56:30,743 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-22 06:56:30,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-22 06:56:30,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-22 06:56:30,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-22 06:56:30,745 INFO L87 Difference]: Start difference. First operand 124 states and 162 transitions. Second operand 4 states. [2020-12-22 06:56:30,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-22 06:56:30,831 INFO L93 Difference]: Finished difference Result 162 states and 213 transitions. [2020-12-22 06:56:30,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-22 06:56:30,832 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 41 [2020-12-22 06:56:30,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-22 06:56:30,832 INFO L225 Difference]: With dead ends: 162 [2020-12-22 06:56:30,832 INFO L226 Difference]: Without dead ends: 0 [2020-12-22 06:56:30,833 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 06:56:30,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-22 06:56:30,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-22 06:56:30,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-22 06:56:30,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-22 06:56:30,835 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2020-12-22 06:56:30,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-22 06:56:30,837 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-22 06:56:30,840 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-22 06:56:30,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-22 06:56:30,841 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-22 06:56:31,055 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-12-22 06:56:31,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-22 06:56:31,618 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 948) no Hoare annotation was computed. [2020-12-22 06:56:31,618 INFO L189 CegarLoopUtils]: For program point L630(lines 630 647) no Hoare annotation was computed. [2020-12-22 06:56:31,618 INFO L189 CegarLoopUtils]: For program point L630-1(lines 630 647) no Hoare annotation was computed. [2020-12-22 06:56:31,618 INFO L189 CegarLoopUtils]: For program point L630-2(lines 630 647) no Hoare annotation was computed. [2020-12-22 06:56:31,618 INFO L189 CegarLoopUtils]: For program point L630-3(lines 630 647) no Hoare annotation was computed. [2020-12-22 06:56:31,619 INFO L189 CegarLoopUtils]: For program point L630-4(lines 630 647) no Hoare annotation was computed. [2020-12-22 06:56:31,619 INFO L189 CegarLoopUtils]: For program point L630-5(lines 630 647) no Hoare annotation was computed. [2020-12-22 06:56:31,619 INFO L189 CegarLoopUtils]: For program point L895(lines 895 901) no Hoare annotation was computed. [2020-12-22 06:56:31,619 INFO L189 CegarLoopUtils]: For program point L895-2(lines 895 901) no Hoare annotation was computed. [2020-12-22 06:56:31,619 INFO L189 CegarLoopUtils]: For program point L895-4(lines 895 901) no Hoare annotation was computed. [2020-12-22 06:56:31,620 INFO L185 CegarLoopUtils]: At program point L598(lines 597 616) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:31,620 INFO L189 CegarLoopUtils]: For program point L598-1(lines 598 604) no Hoare annotation was computed. [2020-12-22 06:56:31,620 INFO L185 CegarLoopUtils]: At program point L598-2(lines 597 616) the Hoare annotation is: false [2020-12-22 06:56:31,620 INFO L185 CegarLoopUtils]: At program point L598-3(lines 597 616) the Hoare annotation is: false [2020-12-22 06:56:31,620 INFO L185 CegarLoopUtils]: At program point L764(lines 749 767) the Hoare annotation is: false [2020-12-22 06:56:31,620 INFO L185 CegarLoopUtils]: At program point L764-1(lines 749 767) the Hoare annotation is: false [2020-12-22 06:56:31,620 INFO L185 CegarLoopUtils]: At program point L764-2(lines 749 767) the Hoare annotation is: false [2020-12-22 06:56:31,621 INFO L185 CegarLoopUtils]: At program point L764-3(lines 749 767) the Hoare annotation is: false [2020-12-22 06:56:31,621 INFO L185 CegarLoopUtils]: At program point L764-4(lines 749 767) the Hoare annotation is: false [2020-12-22 06:56:31,621 INFO L185 CegarLoopUtils]: At program point L764-5(lines 749 767) the Hoare annotation is: false [2020-12-22 06:56:31,621 INFO L189 CegarLoopUtils]: For program point L534(lines 534 540) no Hoare annotation was computed. [2020-12-22 06:56:31,621 INFO L185 CegarLoopUtils]: At program point L534-1(lines 534 540) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 1 ~systemActive~0) .cse0 .cse1 .cse2) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8 0)) .cse0 .cse1 .cse2))) [2020-12-22 06:56:31,621 INFO L185 CegarLoopUtils]: At program point L105(lines 101 107) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:31,622 INFO L185 CegarLoopUtils]: At program point L931(lines 1 951) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:31,622 INFO L189 CegarLoopUtils]: For program point L799(lines 799 803) no Hoare annotation was computed. [2020-12-22 06:56:31,622 INFO L185 CegarLoopUtils]: At program point L700(lines 693 703) the Hoare annotation is: false [2020-12-22 06:56:31,622 INFO L189 CegarLoopUtils]: For program point L799-3(lines 799 803) no Hoare annotation was computed. [2020-12-22 06:56:31,622 INFO L185 CegarLoopUtils]: At program point L700-1(lines 693 703) the Hoare annotation is: false [2020-12-22 06:56:31,622 INFO L189 CegarLoopUtils]: For program point L634(lines 634 642) no Hoare annotation was computed. [2020-12-22 06:56:31,622 INFO L185 CegarLoopUtils]: At program point L700-2(lines 693 703) the Hoare annotation is: false [2020-12-22 06:56:31,623 INFO L189 CegarLoopUtils]: For program point L634-1(lines 634 642) no Hoare annotation was computed. [2020-12-22 06:56:31,623 INFO L189 CegarLoopUtils]: For program point L799-6(lines 799 803) no Hoare annotation was computed. [2020-12-22 06:56:31,623 INFO L189 CegarLoopUtils]: For program point L634-2(lines 634 642) no Hoare annotation was computed. [2020-12-22 06:56:31,623 INFO L189 CegarLoopUtils]: For program point L634-3(lines 634 642) no Hoare annotation was computed. [2020-12-22 06:56:31,623 INFO L189 CegarLoopUtils]: For program point L634-4(lines 634 642) no Hoare annotation was computed. [2020-12-22 06:56:31,623 INFO L189 CegarLoopUtils]: For program point L634-5(lines 634 642) no Hoare annotation was computed. [2020-12-22 06:56:31,623 INFO L192 CegarLoopUtils]: At program point L141(lines 122 144) the Hoare annotation is: true [2020-12-22 06:56:31,624 INFO L185 CegarLoopUtils]: At program point L868(lines 863 871) the Hoare annotation is: (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:31,624 INFO L185 CegarLoopUtils]: At program point L868-1(lines 863 871) the Hoare annotation is: false [2020-12-22 06:56:31,624 INFO L185 CegarLoopUtils]: At program point L868-2(lines 863 871) the Hoare annotation is: false [2020-12-22 06:56:31,624 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 948) no Hoare annotation was computed. [2020-12-22 06:56:31,624 INFO L185 CegarLoopUtils]: At program point L836(lines 831 839) the Hoare annotation is: false [2020-12-22 06:56:31,624 INFO L185 CegarLoopUtils]: At program point L836-1(lines 831 839) the Hoare annotation is: false [2020-12-22 06:56:31,625 INFO L185 CegarLoopUtils]: At program point L836-2(lines 831 839) the Hoare annotation is: false [2020-12-22 06:56:31,625 INFO L185 CegarLoopUtils]: At program point L605(lines 605 611) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:31,625 INFO L185 CegarLoopUtils]: At program point L605-1(lines 605 611) the Hoare annotation is: false [2020-12-22 06:56:31,625 INFO L185 CegarLoopUtils]: At program point L605-2(lines 605 611) the Hoare annotation is: false [2020-12-22 06:56:31,625 INFO L189 CegarLoopUtils]: For program point L772(lines 772 778) no Hoare annotation was computed. [2020-12-22 06:56:31,625 INFO L185 CegarLoopUtils]: At program point L772-1(lines 772 778) the Hoare annotation is: (let ((.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse0 (= ~pumpRunning~0 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (or (and (= ~waterLevel~0 ~systemActive~0) .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8 0)) .cse1)) .cse0 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:31,626 INFO L185 CegarLoopUtils]: At program point L574(lines 523 575) the Hoare annotation is: false [2020-12-22 06:56:31,626 INFO L185 CegarLoopUtils]: At program point L939(lines 934 942) the Hoare annotation is: (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-12-22 06:56:31,626 INFO L185 CegarLoopUtils]: At program point L709(lines 704 712) the Hoare annotation is: false [2020-12-22 06:56:31,626 INFO L185 CegarLoopUtils]: At program point L709-1(lines 704 712) the Hoare annotation is: false [2020-12-22 06:56:31,626 INFO L185 CegarLoopUtils]: At program point L709-2(lines 704 712) the Hoare annotation is: false [2020-12-22 06:56:31,626 INFO L189 CegarLoopUtils]: For program point L544(lines 544 550) no Hoare annotation was computed. [2020-12-22 06:56:31,627 INFO L185 CegarLoopUtils]: At program point L544-1(lines 544 550) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (<= 1 ~waterLevel~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= 1 ~systemActive~0) .cse0 .cse1 .cse2) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8 0)) .cse0 .cse1 .cse2))) [2020-12-22 06:56:31,627 INFO L185 CegarLoopUtils]: At program point L877(lines 872 880) the Hoare annotation is: false [2020-12-22 06:56:31,627 INFO L185 CegarLoopUtils]: At program point L877-1(lines 872 880) the Hoare annotation is: false [2020-12-22 06:56:31,627 INFO L189 CegarLoopUtils]: For program point L811(lines 811 815) no Hoare annotation was computed. [2020-12-22 06:56:31,627 INFO L185 CegarLoopUtils]: At program point L877-2(lines 872 880) the Hoare annotation is: false [2020-12-22 06:56:31,627 INFO L185 CegarLoopUtils]: At program point L877-3(lines 872 880) the Hoare annotation is: false [2020-12-22 06:56:31,627 INFO L185 CegarLoopUtils]: At program point L877-4(lines 872 880) the Hoare annotation is: false [2020-12-22 06:56:31,628 INFO L185 CegarLoopUtils]: At program point L877-5(lines 872 880) the Hoare annotation is: false [2020-12-22 06:56:31,628 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,628 INFO L185 CegarLoopUtils]: At program point L54-2(lines 54 68) the Hoare annotation is: false [2020-12-22 06:56:31,628 INFO L189 CegarLoopUtils]: For program point L55(line 55) no Hoare annotation was computed. [2020-12-22 06:56:31,628 INFO L189 CegarLoopUtils]: For program point L948(line 948) no Hoare annotation was computed. [2020-12-22 06:56:31,628 INFO L189 CegarLoopUtils]: For program point L948-1(line 948) no Hoare annotation was computed. [2020-12-22 06:56:31,628 INFO L189 CegarLoopUtils]: For program point L948-2(line 948) no Hoare annotation was computed. [2020-12-22 06:56:31,628 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L58(lines 58 62) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L58-1(lines 598 604) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L554(lines 554 569) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L656(lines 656 673) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L656-1(lines 656 673) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L656-2(lines 656 673) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L525(lines 524 573) no Hoare annotation was computed. [2020-12-22 06:56:31,629 INFO L189 CegarLoopUtils]: For program point L823(lines 823 827) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L526(lines 526 530) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L758(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L758-2(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L758-3(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L758-5(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L758-6(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,630 INFO L189 CegarLoopUtils]: For program point L758-8(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L758-9(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L758-11(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L758-12(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L758-14(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L758-15(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L758-17(lines 758 762) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-22 06:56:31,631 INFO L189 CegarLoopUtils]: For program point L891(lines 891 904) no Hoare annotation was computed. [2020-12-22 06:56:31,632 INFO L185 CegarLoopUtils]: At program point L891-1(lines 1 951) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and (= ~waterLevel~0 ~systemActive~0) (= 1 ~systemActive~0) .cse0 .cse1) (and (not (= |ULTIMATE.start_getWaterLevel_#res| 0)) (not (= ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~8 0)) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2020-12-22 06:56:31,632 INFO L189 CegarLoopUtils]: For program point L891-2(lines 891 904) no Hoare annotation was computed. [2020-12-22 06:56:31,632 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 948) no Hoare annotation was computed. [2020-12-22 06:56:31,632 INFO L185 CegarLoopUtils]: At program point L891-3(lines 1 951) the Hoare annotation is: false [2020-12-22 06:56:31,632 INFO L189 CegarLoopUtils]: For program point L891-4(lines 891 904) no Hoare annotation was computed. [2020-12-22 06:56:31,632 INFO L185 CegarLoopUtils]: At program point L891-5(lines 1 951) the Hoare annotation is: false [2020-12-22 06:56:31,632 INFO L189 CegarLoopUtils]: For program point L660(lines 660 668) no Hoare annotation was computed. [2020-12-22 06:56:31,633 INFO L189 CegarLoopUtils]: For program point L660-1(lines 660 668) no Hoare annotation was computed. [2020-12-22 06:56:31,633 INFO L189 CegarLoopUtils]: For program point L660-2(lines 660 668) no Hoare annotation was computed. [2020-12-22 06:56:31,633 INFO L189 CegarLoopUtils]: For program point L132(lines 132 139) no Hoare annotation was computed. [2020-12-22 06:56:31,633 INFO L192 CegarLoopUtils]: At program point L132-1(lines 132 139) the Hoare annotation is: true [2020-12-22 06:56:31,633 INFO L189 CegarLoopUtils]: For program point L562(lines 562 568) no Hoare annotation was computed. [2020-12-22 06:56:31,633 INFO L185 CegarLoopUtils]: At program point L562-1(lines 598 604) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0)) [2020-12-22 06:56:31,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 06:56:31 BoogieIcfgContainer [2020-12-22 06:56:31,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-22 06:56:31,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-22 06:56:31,658 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-22 06:56:31,658 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-22 06:56:31,658 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 06:56:31,662 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-22 06:56:31,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-12-22 06:56:31,686 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-12-22 06:56:31,687 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-12-22 06:56:31,688 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-12-22 06:56:31,689 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-12-22 06:56:31,694 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:31,695 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-22 06:56:31,729 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:31,733 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:31,734 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) [2020-12-22 06:56:31,736 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == systemActive && splverifierCounter == 0) || ((!(\result == 0) && !(tmp == 0)) && splverifierCounter == 0)) && pumpRunning == 0) && 1 <= waterLevel) [2020-12-22 06:56:31,739 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel [2020-12-22 06:56:31,846 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/product-lines/minepump_spec4_product24.cil.c-witness.graphml [2020-12-22 06:56:31,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-22 06:56:31,848 INFO L168 Benchmark]: Toolchain (without parser) took 5162.13 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 125.0 MB in the beginning and 108.8 MB in the end (delta: 16.2 MB). Peak memory consumption was 48.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,849 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-22 06:56:31,849 INFO L168 Benchmark]: CACSL2BoogieTranslator took 569.36 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 103.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,850 INFO L168 Benchmark]: Boogie Procedure Inliner took 101.77 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 99.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,850 INFO L168 Benchmark]: Boogie Preprocessor took 128.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.7 MB in the beginning and 131.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,851 INFO L168 Benchmark]: RCFGBuilder took 1343.41 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 70.8 MB in the end (delta: 60.3 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,851 INFO L168 Benchmark]: TraceAbstraction took 2822.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 70.3 MB in the beginning and 117.7 MB in the end (delta: -47.4 MB). Peak memory consumption was 45.9 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,851 INFO L168 Benchmark]: Witness Printer took 189.20 ms. Allocated memory is still 181.4 MB. Free memory was 117.7 MB in the beginning and 108.8 MB in the end (delta: 8.9 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-12-22 06:56:31,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 151.0 MB. Free memory is still 123.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 569.36 ms. Allocated memory is still 151.0 MB. Free memory was 124.8 MB in the beginning and 103.1 MB in the end (delta: 21.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 101.77 ms. Allocated memory is still 151.0 MB. Free memory was 103.1 MB in the beginning and 99.7 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 128.01 ms. Allocated memory is still 151.0 MB. Free memory was 99.7 MB in the beginning and 131.1 MB in the end (delta: -31.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1343.41 ms. Allocated memory is still 151.0 MB. Free memory was 131.1 MB in the beginning and 70.8 MB in the end (delta: 60.3 MB). Peak memory consumption was 60.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2822.21 ms. Allocated memory was 151.0 MB in the beginning and 181.4 MB in the end (delta: 30.4 MB). Free memory was 70.3 MB in the beginning and 117.7 MB in the end (delta: -47.4 MB). Peak memory consumption was 45.9 MB. Max. memory is 8.0 GB. * Witness Printer took 189.20 ms. Allocated memory is still 181.4 MB. Free memory was 117.7 MB in the beginning and 108.8 MB in the end (delta: 8.9 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: 948]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 948]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 948]: 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: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: ((!(\result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 934]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 544]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 693]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 693]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 605]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 704]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 749]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 693]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 772]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || ((((waterLevel == systemActive && splverifierCounter == 0) || ((!(\result == 0) && !(tmp == 0)) && splverifierCounter == 0)) && pumpRunning == 0) && 1 <= waterLevel) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 534]: Loop Invariant Derived loop invariant: (((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) || (((1 == systemActive && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel)) || ((((!(\result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: (waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 872]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 598]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && splverifierCounter == 0) && 1 <= waterLevel - InvariantResult [Line: 122]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((waterLevel == systemActive && 1 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) || ((((!(\result == 0) && !(tmp == 0)) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 107 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 462 SDtfs, 653 SDslu, 632 SDs, 0 SdLazy, 118 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=214occurred 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, 287 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 44 PreInvPairs, 76 NumberOfFragments, 261 HoareAnnotationTreeSize, 44 FomulaSimplifications, 826 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 44 FomulaSimplificationsInter, 161 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 186 NumberOfCodeBlocks, 186 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 11242 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...