./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-25 23:07:46,057 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-25 23:07:46,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-25 23:07:46,116 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-25 23:07:46,117 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-25 23:07:46,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-25 23:07:46,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-25 23:07:46,123 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-25 23:07:46,126 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-25 23:07:46,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-25 23:07:46,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-25 23:07:46,131 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-25 23:07:46,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-25 23:07:46,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-25 23:07:46,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-25 23:07:46,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-25 23:07:46,138 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-25 23:07:46,140 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-25 23:07:46,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-25 23:07:46,145 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-25 23:07:46,147 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-25 23:07:46,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-25 23:07:46,151 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-25 23:07:46,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-25 23:07:46,156 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-25 23:07:46,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-25 23:07:46,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-25 23:07:46,158 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-25 23:07:46,158 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-25 23:07:46,160 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-25 23:07:46,160 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-25 23:07:46,161 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-25 23:07:46,162 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-25 23:07:46,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-25 23:07:46,165 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-25 23:07:46,165 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-25 23:07:46,170 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-25 23:07:46,170 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-25 23:07:46,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-25 23:07:46,172 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-25 23:07:46,175 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-25 23:07:46,178 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-25 23:07:46,238 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-25 23:07:46,238 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-25 23:07:46,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-25 23:07:46,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-25 23:07:46,241 INFO L138 SettingsManager]: * Use SBE=true [2020-10-25 23:07:46,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-25 23:07:46,241 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-25 23:07:46,242 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-25 23:07:46,242 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-25 23:07:46,242 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-25 23:07:46,243 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-25 23:07:46,243 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-25 23:07:46,243 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-25 23:07:46,244 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-25 23:07:46,244 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-25 23:07:46,244 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-25 23:07:46,244 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-25 23:07:46,244 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-25 23:07:46,245 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-25 23:07:46,245 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-25 23:07:46,245 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-25 23:07:46,245 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-25 23:07:46,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-25 23:07:46,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-25 23:07:46,246 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-25 23:07:46,246 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-25 23:07:46,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-25 23:07:46,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-25 23:07:46,247 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-25 23:07:46,247 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 [2020-10-25 23:07:46,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-25 23:07:46,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-25 23:07:46,700 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-25 23:07:46,702 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-25 23:07:46,703 INFO L275 PluginConnector]: CDTParser initialized [2020-10-25 23:07:46,704 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2020-10-25 23:07:46,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace9715fe/573382dd04f346f49f6797eb1d4439d8/FLAG5c8a2e79a [2020-10-25 23:07:47,510 INFO L306 CDTParser]: Found 1 translation units. [2020-10-25 23:07:47,521 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2020-10-25 23:07:47,543 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace9715fe/573382dd04f346f49f6797eb1d4439d8/FLAG5c8a2e79a [2020-10-25 23:07:47,784 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace9715fe/573382dd04f346f49f6797eb1d4439d8 [2020-10-25 23:07:47,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-25 23:07:47,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-25 23:07:47,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:47,816 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-25 23:07:47,820 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-25 23:07:47,821 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,825 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@663c0e19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:47, skipping insertion in model container [2020-10-25 23:07:47,825 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 11:07:47" (1/1) ... [2020-10-25 23:07:47,835 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-25 23:07:47,878 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-25 23:07:48,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:48,312 INFO L203 MainTranslator]: Completed pre-run [2020-10-25 23:07:48,499 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-25 23:07:48,558 INFO L208 MainTranslator]: Completed translation [2020-10-25 23:07:48,560 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48 WrapperNode [2020-10-25 23:07:48,560 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-25 23:07:48,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:48,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-25 23:07:48,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-25 23:07:48,574 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,621 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,702 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-25 23:07:48,703 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-25 23:07:48,703 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-25 23:07:48,704 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-25 23:07:48,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,721 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,722 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,739 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,760 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,763 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (1/1) ... [2020-10-25 23:07:48,776 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-25 23:07:48,780 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-25 23:07:48,780 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-25 23:07:48,780 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-25 23:07:48,781 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (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 [2020-10-25 23:07:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-25 23:07:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-25 23:07:48,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-25 23:07:48,873 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-25 23:07:49,954 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-25 23:07:49,955 INFO L298 CfgBuilder]: Removed 202 assume(true) statements. [2020-10-25 23:07:49,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:49 BoogieIcfgContainer [2020-10-25 23:07:49,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-25 23:07:49,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-25 23:07:49,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-25 23:07:49,962 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-25 23:07:49,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 11:07:47" (1/3) ... [2020-10-25 23:07:49,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d80c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:49, skipping insertion in model container [2020-10-25 23:07:49,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 11:07:48" (2/3) ... [2020-10-25 23:07:49,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d80c1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 11:07:49, skipping insertion in model container [2020-10-25 23:07:49,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:49" (3/3) ... [2020-10-25 23:07:49,965 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2020-10-25 23:07:49,978 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-25 23:07:49,983 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2020-10-25 23:07:49,997 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-25 23:07:50,028 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-25 23:07:50,028 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-25 23:07:50,028 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-25 23:07:50,028 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-25 23:07:50,028 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-25 23:07:50,029 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-25 23:07:50,029 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-25 23:07:50,029 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-25 23:07:50,049 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states. [2020-10-25 23:07:50,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-25 23:07:50,057 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:50,058 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:50,058 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:50,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:50,065 INFO L82 PathProgramCache]: Analyzing trace with hash -1591441701, now seen corresponding path program 1 times [2020-10-25 23:07:50,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:50,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819830635] [2020-10-25 23:07:50,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:50,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:50,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:50,439 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819830635] [2020-10-25 23:07:50,440 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:50,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:50,442 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964912391] [2020-10-25 23:07:50,447 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-25 23:07:50,448 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:50,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-25 23:07:50,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-25 23:07:50,472 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 2 states. [2020-10-25 23:07:50,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:50,553 INFO L93 Difference]: Finished difference Result 271 states and 404 transitions. [2020-10-25 23:07:50,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-25 23:07:50,556 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-10-25 23:07:50,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:50,581 INFO L225 Difference]: With dead ends: 271 [2020-10-25 23:07:50,581 INFO L226 Difference]: Without dead ends: 133 [2020-10-25 23:07:50,602 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 [2020-10-25 23:07:50,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2020-10-25 23:07:50,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2020-10-25 23:07:50,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-10-25 23:07:50,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2020-10-25 23:07:50,693 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2020-10-25 23:07:50,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:50,694 INFO L481 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2020-10-25 23:07:50,694 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-25 23:07:50,695 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2020-10-25 23:07:50,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-10-25 23:07:50,697 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:50,697 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:50,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-25 23:07:50,698 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:50,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:50,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1656768698, now seen corresponding path program 1 times [2020-10-25 23:07:50,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:50,702 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400756454] [2020-10-25 23:07:50,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:50,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:50,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:50,913 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400756454] [2020-10-25 23:07:50,913 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:50,913 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:50,914 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876083300] [2020-10-25 23:07:50,917 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:50,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:50,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:50,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:50,919 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand 3 states. [2020-10-25 23:07:50,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:50,951 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2020-10-25 23:07:50,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:50,952 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2020-10-25 23:07:50,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:50,953 INFO L225 Difference]: With dead ends: 133 [2020-10-25 23:07:50,953 INFO L226 Difference]: Without dead ends: 55 [2020-10-25 23:07:50,955 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 [2020-10-25 23:07:50,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2020-10-25 23:07:50,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2020-10-25 23:07:50,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-10-25 23:07:50,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2020-10-25 23:07:50,962 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 17 [2020-10-25 23:07:50,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:50,962 INFO L481 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2020-10-25 23:07:50,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:50,963 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2020-10-25 23:07:50,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-10-25 23:07:50,964 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:50,964 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] [2020-10-25 23:07:50,965 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-25 23:07:50,966 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:50,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:50,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1725162559, now seen corresponding path program 1 times [2020-10-25 23:07:50,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:50,970 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891789643] [2020-10-25 23:07:50,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,139 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891789643] [2020-10-25 23:07:51,139 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,139 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:51,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924897171] [2020-10-25 23:07:51,140 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:51,140 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:51,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:51,142 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand 6 states. [2020-10-25 23:07:51,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:51,379 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2020-10-25 23:07:51,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:51,380 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 22 [2020-10-25 23:07:51,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:51,382 INFO L225 Difference]: With dead ends: 176 [2020-10-25 23:07:51,382 INFO L226 Difference]: Without dead ends: 127 [2020-10-25 23:07:51,383 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:51,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-10-25 23:07:51,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 74. [2020-10-25 23:07:51,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-10-25 23:07:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2020-10-25 23:07:51,406 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 22 [2020-10-25 23:07:51,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:51,406 INFO L481 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2020-10-25 23:07:51,406 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:51,406 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2020-10-25 23:07:51,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-10-25 23:07:51,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:51,408 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] [2020-10-25 23:07:51,408 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-25 23:07:51,408 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:51,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1536171928, now seen corresponding path program 1 times [2020-10-25 23:07:51,409 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:51,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244603347] [2020-10-25 23:07:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:51,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244603347] [2020-10-25 23:07:51,466 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,466 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-25 23:07:51,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438245435] [2020-10-25 23:07:51,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-25 23:07:51,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-25 23:07:51,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-25 23:07:51,468 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand 3 states. [2020-10-25 23:07:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:51,512 INFO L93 Difference]: Finished difference Result 163 states and 240 transitions. [2020-10-25 23:07:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-25 23:07:51,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-10-25 23:07:51,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:51,514 INFO L225 Difference]: With dead ends: 163 [2020-10-25 23:07:51,514 INFO L226 Difference]: Without dead ends: 95 [2020-10-25 23:07:51,515 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 [2020-10-25 23:07:51,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2020-10-25 23:07:51,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2020-10-25 23:07:51,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-10-25 23:07:51,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2020-10-25 23:07:51,531 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 24 [2020-10-25 23:07:51,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:51,531 INFO L481 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2020-10-25 23:07:51,531 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-25 23:07:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2020-10-25 23:07:51,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-10-25 23:07:51,534 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:51,534 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] [2020-10-25 23:07:51,534 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-25 23:07:51,535 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:51,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1391898518, now seen corresponding path program 1 times [2020-10-25 23:07:51,535 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:51,536 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302686665] [2020-10-25 23:07:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:51,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302686665] [2020-10-25 23:07:51,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:51,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436182306] [2020-10-25 23:07:51,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:51,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:51,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:51,627 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand 5 states. [2020-10-25 23:07:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:51,738 INFO L93 Difference]: Finished difference Result 331 states and 477 transitions. [2020-10-25 23:07:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:51,739 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 25 [2020-10-25 23:07:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:51,741 INFO L225 Difference]: With dead ends: 331 [2020-10-25 23:07:51,741 INFO L226 Difference]: Without dead ends: 244 [2020-10-25 23:07:51,742 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:51,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2020-10-25 23:07:51,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 155. [2020-10-25 23:07:51,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-25 23:07:51,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 215 transitions. [2020-10-25 23:07:51,763 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 215 transitions. Word has length 25 [2020-10-25 23:07:51,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:51,764 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 215 transitions. [2020-10-25 23:07:51,764 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:51,764 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 215 transitions. [2020-10-25 23:07:51,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-10-25 23:07:51,765 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:51,765 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:51,766 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-25 23:07:51,766 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:51,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:51,766 INFO L82 PathProgramCache]: Analyzing trace with hash -567410472, now seen corresponding path program 1 times [2020-10-25 23:07:51,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:51,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018429695] [2020-10-25 23:07:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:51,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:51,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:51,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018429695] [2020-10-25 23:07:51,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:51,853 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:51,853 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781863667] [2020-10-25 23:07:51,854 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:51,854 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:51,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:51,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:51,856 INFO L87 Difference]: Start difference. First operand 155 states and 215 transitions. Second operand 5 states. [2020-10-25 23:07:52,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,022 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2020-10-25 23:07:52,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:07:52,022 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 26 [2020-10-25 23:07:52,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,025 INFO L225 Difference]: With dead ends: 327 [2020-10-25 23:07:52,025 INFO L226 Difference]: Without dead ends: 325 [2020-10-25 23:07:52,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-25 23:07:52,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2020-10-25 23:07:52,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 155. [2020-10-25 23:07:52,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-10-25 23:07:52,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2020-10-25 23:07:52,045 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 26 [2020-10-25 23:07:52,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,046 INFO L481 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2020-10-25 23:07:52,046 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:52,046 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2020-10-25 23:07:52,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-25 23:07:52,047 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,047 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:52,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-25 23:07:52,048 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,049 INFO L82 PathProgramCache]: Analyzing trace with hash -474783860, now seen corresponding path program 1 times [2020-10-25 23:07:52,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593833860] [2020-10-25 23:07:52,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:52,124 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593833860] [2020-10-25 23:07:52,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-25 23:07:52,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061047774] [2020-10-25 23:07:52,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:52,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:52,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:52,127 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand 4 states. [2020-10-25 23:07:52,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,275 INFO L93 Difference]: Finished difference Result 320 states and 447 transitions. [2020-10-25 23:07:52,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:52,275 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-25 23:07:52,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,277 INFO L225 Difference]: With dead ends: 320 [2020-10-25 23:07:52,277 INFO L226 Difference]: Without dead ends: 233 [2020-10-25 23:07:52,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:52,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-10-25 23:07:52,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2020-10-25 23:07:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-25 23:07:52,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 316 transitions. [2020-10-25 23:07:52,301 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 316 transitions. Word has length 34 [2020-10-25 23:07:52,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,302 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 316 transitions. [2020-10-25 23:07:52,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:52,302 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 316 transitions. [2020-10-25 23:07:52,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-25 23:07:52,303 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,303 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:52,303 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-25 23:07:52,304 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,304 INFO L82 PathProgramCache]: Analyzing trace with hash -1754647538, now seen corresponding path program 1 times [2020-10-25 23:07:52,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046402492] [2020-10-25 23:07:52,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:52,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046402492] [2020-10-25 23:07:52,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:52,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177550609] [2020-10-25 23:07:52,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:52,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:52,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:52,356 INFO L87 Difference]: Start difference. First operand 230 states and 316 transitions. Second operand 4 states. [2020-10-25 23:07:52,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,459 INFO L93 Difference]: Finished difference Result 679 states and 946 transitions. [2020-10-25 23:07:52,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:07:52,460 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 34 [2020-10-25 23:07:52,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,463 INFO L225 Difference]: With dead ends: 679 [2020-10-25 23:07:52,463 INFO L226 Difference]: Without dead ends: 516 [2020-10-25 23:07:52,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:52,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2020-10-25 23:07:52,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 230. [2020-10-25 23:07:52,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-25 23:07:52,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 314 transitions. [2020-10-25 23:07:52,494 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 314 transitions. Word has length 34 [2020-10-25 23:07:52,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,494 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 314 transitions. [2020-10-25 23:07:52,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:52,494 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 314 transitions. [2020-10-25 23:07:52,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-10-25 23:07:52,496 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,496 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:52,496 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-25 23:07:52,496 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,497 INFO L82 PathProgramCache]: Analyzing trace with hash 1953513744, now seen corresponding path program 1 times [2020-10-25 23:07:52,497 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,497 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170969335] [2020-10-25 23:07:52,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:52,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170969335] [2020-10-25 23:07:52,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:52,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941614545] [2020-10-25 23:07:52,566 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:52,567 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,567 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:52,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:52,568 INFO L87 Difference]: Start difference. First operand 230 states and 314 transitions. Second operand 5 states. [2020-10-25 23:07:52,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:52,787 INFO L93 Difference]: Finished difference Result 505 states and 699 transitions. [2020-10-25 23:07:52,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:52,787 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 34 [2020-10-25 23:07:52,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:52,790 INFO L225 Difference]: With dead ends: 505 [2020-10-25 23:07:52,790 INFO L226 Difference]: Without dead ends: 342 [2020-10-25 23:07:52,791 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-25 23:07:52,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2020-10-25 23:07:52,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 256. [2020-10-25 23:07:52,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 256 states. [2020-10-25 23:07:52,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 352 transitions. [2020-10-25 23:07:52,819 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 352 transitions. Word has length 34 [2020-10-25 23:07:52,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:52,820 INFO L481 AbstractCegarLoop]: Abstraction has 256 states and 352 transitions. [2020-10-25 23:07:52,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:52,820 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 352 transitions. [2020-10-25 23:07:52,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-25 23:07:52,821 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:52,822 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:52,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-25 23:07:52,822 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:52,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:52,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1310370263, now seen corresponding path program 1 times [2020-10-25 23:07:52,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:52,823 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108713391] [2020-10-25 23:07:52,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:52,883 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:52,883 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108713391] [2020-10-25 23:07:52,883 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:52,884 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:52,884 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907697080] [2020-10-25 23:07:52,884 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:52,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:52,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:52,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:52,885 INFO L87 Difference]: Start difference. First operand 256 states and 352 transitions. Second operand 5 states. [2020-10-25 23:07:53,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:53,012 INFO L93 Difference]: Finished difference Result 778 states and 1068 transitions. [2020-10-25 23:07:53,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-25 23:07:53,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 54 [2020-10-25 23:07:53,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:53,015 INFO L225 Difference]: With dead ends: 778 [2020-10-25 23:07:53,016 INFO L226 Difference]: Without dead ends: 528 [2020-10-25 23:07:53,017 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 [2020-10-25 23:07:53,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2020-10-25 23:07:53,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 265. [2020-10-25 23:07:53,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-10-25 23:07:53,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2020-10-25 23:07:53,051 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 54 [2020-10-25 23:07:53,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:53,051 INFO L481 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2020-10-25 23:07:53,051 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:53,051 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2020-10-25 23:07:53,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-10-25 23:07:53,052 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:53,053 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:53,053 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-25 23:07:53,053 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:53,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:53,054 INFO L82 PathProgramCache]: Analyzing trace with hash -933613035, now seen corresponding path program 1 times [2020-10-25 23:07:53,054 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:53,055 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013374522] [2020-10-25 23:07:53,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:53,112 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-25 23:07:53,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013374522] [2020-10-25 23:07:53,113 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:53,113 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-25 23:07:53,113 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852393211] [2020-10-25 23:07:53,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-25 23:07:53,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:53,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-25 23:07:53,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-25 23:07:53,116 INFO L87 Difference]: Start difference. First operand 265 states and 361 transitions. Second operand 4 states. [2020-10-25 23:07:53,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:53,204 INFO L93 Difference]: Finished difference Result 609 states and 830 transitions. [2020-10-25 23:07:53,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-25 23:07:53,205 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 54 [2020-10-25 23:07:53,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:53,207 INFO L225 Difference]: With dead ends: 609 [2020-10-25 23:07:53,207 INFO L226 Difference]: Without dead ends: 350 [2020-10-25 23:07:53,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:53,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2020-10-25 23:07:53,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 224. [2020-10-25 23:07:53,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-25 23:07:53,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 299 transitions. [2020-10-25 23:07:53,239 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 299 transitions. Word has length 54 [2020-10-25 23:07:53,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:53,239 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 299 transitions. [2020-10-25 23:07:53,240 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-25 23:07:53,240 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 299 transitions. [2020-10-25 23:07:53,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-10-25 23:07:53,241 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:53,241 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:53,242 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-25 23:07:53,242 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:53,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:53,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1278005039, now seen corresponding path program 1 times [2020-10-25 23:07:53,243 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:53,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218801222] [2020-10-25 23:07:53,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:53,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:53,335 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:53,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218801222] [2020-10-25 23:07:53,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [123046546] [2020-10-25 23:07:53,337 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 [2020-10-25 23:07:53,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:53,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-25 23:07:53,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-25 23:07:53,580 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-25 23:07:53,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-25 23:07:53,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2020-10-25 23:07:53,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375270299] [2020-10-25 23:07:53,582 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-25 23:07:53,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:53,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-25 23:07:53,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:53,583 INFO L87 Difference]: Start difference. First operand 224 states and 299 transitions. Second operand 6 states. [2020-10-25 23:07:53,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:53,871 INFO L93 Difference]: Finished difference Result 636 states and 864 transitions. [2020-10-25 23:07:53,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-25 23:07:53,872 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2020-10-25 23:07:53,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:53,875 INFO L225 Difference]: With dead ends: 636 [2020-10-25 23:07:53,876 INFO L226 Difference]: Without dead ends: 466 [2020-10-25 23:07:53,877 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-10-25 23:07:53,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2020-10-25 23:07:53,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 272. [2020-10-25 23:07:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 272 states. [2020-10-25 23:07:53,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 363 transitions. [2020-10-25 23:07:53,925 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 363 transitions. Word has length 55 [2020-10-25 23:07:53,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:53,926 INFO L481 AbstractCegarLoop]: Abstraction has 272 states and 363 transitions. [2020-10-25 23:07:53,926 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-25 23:07:53,926 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 363 transitions. [2020-10-25 23:07:53,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-25 23:07:53,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:53,928 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:54,142 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2020-10-25 23:07:54,143 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:54,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:54,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1984080976, now seen corresponding path program 2 times [2020-10-25 23:07:54,143 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:54,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654372754] [2020-10-25 23:07:54,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:54,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:54,388 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-25 23:07:54,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654372754] [2020-10-25 23:07:54,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:54,390 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-25 23:07:54,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602664578] [2020-10-25 23:07:54,390 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-25 23:07:54,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:54,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-25 23:07:54,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-25 23:07:54,397 INFO L87 Difference]: Start difference. First operand 272 states and 363 transitions. Second operand 5 states. [2020-10-25 23:07:54,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:54,781 INFO L93 Difference]: Finished difference Result 809 states and 1095 transitions. [2020-10-25 23:07:54,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-25 23:07:54,782 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-10-25 23:07:54,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:54,786 INFO L225 Difference]: With dead ends: 809 [2020-10-25 23:07:54,786 INFO L226 Difference]: Without dead ends: 584 [2020-10-25 23:07:54,787 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-10-25 23:07:54,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-10-25 23:07:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 376. [2020-10-25 23:07:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-10-25 23:07:54,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 501 transitions. [2020-10-25 23:07:54,858 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 501 transitions. Word has length 76 [2020-10-25 23:07:54,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:54,858 INFO L481 AbstractCegarLoop]: Abstraction has 376 states and 501 transitions. [2020-10-25 23:07:54,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-25 23:07:54,859 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 501 transitions. [2020-10-25 23:07:54,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-10-25 23:07:54,860 INFO L414 BasicCegarLoop]: Found error trace [2020-10-25 23:07:54,860 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-25 23:07:54,860 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-25 23:07:54,861 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-25 23:07:54,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-25 23:07:54,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1709321362, now seen corresponding path program 1 times [2020-10-25 23:07:54,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-25 23:07:54,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811536692] [2020-10-25 23:07:54,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-25 23:07:54,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-25 23:07:54,974 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-25 23:07:54,974 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811536692] [2020-10-25 23:07:54,975 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-25 23:07:54,975 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-25 23:07:54,975 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914279493] [2020-10-25 23:07:54,976 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-25 23:07:54,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-25 23:07:54,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-25 23:07:54,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-25 23:07:54,977 INFO L87 Difference]: Start difference. First operand 376 states and 501 transitions. Second operand 7 states. [2020-10-25 23:07:55,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-25 23:07:55,178 INFO L93 Difference]: Finished difference Result 780 states and 1040 transitions. [2020-10-25 23:07:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-25 23:07:55,179 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 76 [2020-10-25 23:07:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-25 23:07:55,180 INFO L225 Difference]: With dead ends: 780 [2020-10-25 23:07:55,180 INFO L226 Difference]: Without dead ends: 0 [2020-10-25 23:07:55,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-10-25 23:07:55,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-25 23:07:55,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-25 23:07:55,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-25 23:07:55,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-25 23:07:55,183 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-10-25 23:07:55,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-25 23:07:55,183 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-25 23:07:55,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-25 23:07:55,184 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-25 23:07:55,184 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-25 23:07:55,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-25 23:07:55,186 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-25 23:07:55,620 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 168 [2020-10-25 23:07:56,099 WARN L193 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 184 [2020-10-25 23:07:56,766 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 186 [2020-10-25 23:07:57,072 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 152 [2020-10-25 23:07:57,335 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 102 [2020-10-25 23:07:57,748 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 186 [2020-10-25 23:07:58,129 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 169 [2020-10-25 23:07:58,511 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 181 [2020-10-25 23:07:59,473 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 38 [2020-10-25 23:08:00,616 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 173 DAG size of output: 26 [2020-10-25 23:08:00,996 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 34 [2020-10-25 23:08:01,296 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 28 [2020-10-25 23:08:01,475 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 26 [2020-10-25 23:08:02,609 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 175 DAG size of output: 32 [2020-10-25 23:08:03,352 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 30 [2020-10-25 23:08:03,777 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 20 [2020-10-25 23:08:03,895 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 23 [2020-10-25 23:08:05,016 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 175 DAG size of output: 32 [2020-10-25 23:08:05,130 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 23 [2020-10-25 23:08:06,042 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 31 [2020-10-25 23:08:06,201 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 18 [2020-10-25 23:08:07,204 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 27 [2020-10-25 23:08:07,210 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:08:07,211 INFO L270 CegarLoopResult]: At program point L399(lines 384 402) the Hoare annotation is: (and (not (= |ULTIMATE.start_isLowWaterLevel_#res| 0)) (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) (not (= ULTIMATE.start_isLowWaterLevel_~tmp___0~3 0)) (not (= 0 ~systemActive~0)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-25 23:08:07,212 INFO L270 CegarLoopResult]: At program point L399-1(lines 384 402) the Hoare annotation is: false [2020-10-25 23:08:07,212 INFO L270 CegarLoopResult]: At program point L399-2(lines 384 402) the Hoare annotation is: false [2020-10-25 23:08:07,212 INFO L274 CegarLoopResult]: For program point L3(line 3) no Hoare annotation was computed. [2020-10-25 23:08:07,212 INFO L274 CegarLoopResult]: For program point L3-1(line 3) no Hoare annotation was computed. [2020-10-25 23:08:07,212 INFO L274 CegarLoopResult]: For program point L3-2(line 3) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L598(lines 598 604) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L598-1(lines 598 604) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L598-2(lines 598 604) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L598-3(lines 598 604) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L598-4(lines 598 604) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L598-5(lines 598 604) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L533(lines 533 537) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L434(lines 434 438) no Hoare annotation was computed. [2020-10-25 23:08:07,213 INFO L274 CegarLoopResult]: For program point L434-1(lines 196 202) no Hoare annotation was computed. [2020-10-25 23:08:07,214 INFO L270 CegarLoopResult]: At program point L203(lines 203 209) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) .cse0 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse3 .cse4) (and (= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse4))) [2020-10-25 23:08:07,214 INFO L270 CegarLoopResult]: At program point L203-1(lines 203 209) the Hoare annotation is: false [2020-10-25 23:08:07,214 INFO L270 CegarLoopResult]: At program point L203-2(lines 203 209) the Hoare annotation is: false [2020-10-25 23:08:07,214 INFO L274 CegarLoopResult]: For program point L501(lines 501 508) no Hoare annotation was computed. [2020-10-25 23:08:07,214 INFO L277 CegarLoopResult]: At program point L501-1(lines 501 508) the Hoare annotation is: true [2020-10-25 23:08:07,214 INFO L270 CegarLoopResult]: At program point L172(lines 123 173) the Hoare annotation is: false [2020-10-25 23:08:07,214 INFO L270 CegarLoopResult]: At program point L603(lines 594 607) the Hoare annotation is: false [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L603-1(lines 594 607) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 .cse3 .cse4) (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse4))) [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L603-2(lines 594 607) the Hoare annotation is: false [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L603-3(lines 594 607) the Hoare annotation is: false [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L603-4(lines 594 607) the Hoare annotation is: false [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L603-5(lines 594 607) the Hoare annotation is: false [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L75(lines 70 78) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-25 23:08:07,215 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:08:07,215 INFO L274 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-10-25 23:08:07,215 INFO L270 CegarLoopResult]: At program point L407-1(lines 407 413) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse2 .cse1 .cse3))) [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-2(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-3(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-5(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-6(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-8(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-9(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-11(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-12(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-14(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,216 INFO L274 CegarLoopResult]: For program point L374-15(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,217 INFO L274 CegarLoopResult]: For program point L374-17(lines 374 378) no Hoare annotation was computed. [2020-10-25 23:08:07,217 INFO L274 CegarLoopResult]: For program point L144(lines 144 150) no Hoare annotation was computed. [2020-10-25 23:08:07,217 INFO L270 CegarLoopResult]: At program point L144-1(lines 144 150) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse2 .cse4) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse4) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) [2020-10-25 23:08:07,217 INFO L277 CegarLoopResult]: At program point L510(lines 491 513) the Hoare annotation is: true [2020-10-25 23:08:07,217 INFO L270 CegarLoopResult]: At program point L478(lines 474 480) the Hoare annotation is: (and (= ~waterLevel~0 1) (= ~pumpRunning~0 0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-25 23:08:07,217 INFO L274 CegarLoopResult]: For program point L545(lines 545 549) no Hoare annotation was computed. [2020-10-25 23:08:07,217 INFO L270 CegarLoopResult]: At program point L380(lines 365 383) the Hoare annotation is: false [2020-10-25 23:08:07,217 INFO L270 CegarLoopResult]: At program point L380-1(lines 365 383) the Hoare annotation is: (let ((.cse0 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= ULTIMATE.start_isHighWaterLevel_~tmp~5 1) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 0) .cse0 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse4) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse0 (<= 2 ~waterLevel~0) .cse1 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse3 .cse4))) [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L380-2(lines 365 383) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L380-3(lines 365 383) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L380-4(lines 365 383) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L380-5(lines 365 383) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L613(lines 608 616) the Hoare annotation is: (and (not (= 0 ~systemActive~0)) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (<= 1 ~waterLevel~0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L613-1(lines 608 616) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L613-2(lines 608 616) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L316(lines 309 319) the Hoare annotation is: false [2020-10-25 23:08:07,218 INFO L270 CegarLoopResult]: At program point L316-1(lines 309 319) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-25 23:08:07,219 INFO L270 CegarLoopResult]: At program point L316-2(lines 309 319) the Hoare annotation is: false [2020-10-25 23:08:07,219 INFO L270 CegarLoopResult]: At program point L316-3(lines 309 319) the Hoare annotation is: false [2020-10-25 23:08:07,219 INFO L270 CegarLoopResult]: At program point L316-4(lines 309 319) the Hoare annotation is: false [2020-10-25 23:08:07,219 INFO L270 CegarLoopResult]: At program point L316-5(lines 309 319) the Hoare annotation is: false [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point L154(lines 154 167) no Hoare annotation was computed. [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point L254(lines 254 271) no Hoare annotation was computed. [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point L254-1(lines 254 271) no Hoare annotation was computed. [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point L254-2(lines 254 271) no Hoare annotation was computed. [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-25 23:08:07,219 INFO L274 CegarLoopResult]: For program point L91(lines 91 104) no Hoare annotation was computed. [2020-10-25 23:08:07,220 INFO L270 CegarLoopResult]: At program point L91-1(lines 1 991) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse3) (and (= ~waterLevel~0 1) .cse4 .cse0 .cse1 .cse2 .cse3) (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse4 (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse2 .cse3))) [2020-10-25 23:08:07,220 INFO L274 CegarLoopResult]: For program point L91-2(lines 91 104) no Hoare annotation was computed. [2020-10-25 23:08:07,220 INFO L270 CegarLoopResult]: At program point L91-3(lines 1 991) the Hoare annotation is: false [2020-10-25 23:08:07,220 INFO L274 CegarLoopResult]: For program point L91-4(lines 91 104) no Hoare annotation was computed. [2020-10-25 23:08:07,220 INFO L270 CegarLoopResult]: At program point L91-5(lines 1 991) the Hoare annotation is: false [2020-10-25 23:08:07,220 INFO L274 CegarLoopResult]: For program point L521(lines 521 525) no Hoare annotation was computed. [2020-10-25 23:08:07,220 INFO L274 CegarLoopResult]: For program point L521-3(lines 521 525) no Hoare annotation was computed. [2020-10-25 23:08:07,220 INFO L274 CegarLoopResult]: For program point L521-6(lines 521 525) no Hoare annotation was computed. [2020-10-25 23:08:07,220 INFO L274 CegarLoopResult]: For program point L125(lines 124 171) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L291(lines 291 297) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L258(lines 258 266) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L291-2(lines 291 297) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L258-1(lines 258 266) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L258-2(lines 258 266) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L291-4(lines 291 297) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L126(lines 126 130) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L291-6(lines 291 297) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L291-8(lines 291 297) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L291-10(lines 291 297) no Hoare annotation was computed. [2020-10-25 23:08:07,221 INFO L274 CegarLoopResult]: For program point L622(line 622) no Hoare annotation was computed. [2020-10-25 23:08:07,222 INFO L274 CegarLoopResult]: For program point L622-1(line 622) no Hoare annotation was computed. [2020-10-25 23:08:07,222 INFO L274 CegarLoopResult]: For program point L622-2(line 622) no Hoare annotation was computed. [2020-10-25 23:08:07,222 INFO L270 CegarLoopResult]: At program point L325(lines 320 328) the Hoare annotation is: false [2020-10-25 23:08:07,222 INFO L270 CegarLoopResult]: At program point L325-1(lines 320 328) the Hoare annotation is: false [2020-10-25 23:08:07,222 INFO L270 CegarLoopResult]: At program point L325-2(lines 320 328) the Hoare annotation is: false [2020-10-25 23:08:07,222 INFO L274 CegarLoopResult]: For program point L160(lines 160 166) no Hoare annotation was computed. [2020-10-25 23:08:07,222 INFO L270 CegarLoopResult]: At program point L160-1(lines 196 202) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and (not (= 0 ~systemActive~0)) .cse0 .cse2 .cse3 .cse4) (and (= ~waterLevel~0 1) .cse1 .cse2 .cse3 .cse4))) [2020-10-25 23:08:07,223 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-25 23:08:07,223 INFO L270 CegarLoopResult]: At program point L590(lines 585 593) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ULTIMATE.start_main_~tmp~7 1)) (.cse2 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) .cse1 .cse2) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0) .cse2 (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2020-10-25 23:08:07,223 INFO L270 CegarLoopResult]: At program point L590-1(lines 585 593) the Hoare annotation is: false [2020-10-25 23:08:07,223 INFO L270 CegarLoopResult]: At program point L590-2(lines 585 593) the Hoare annotation is: false [2020-10-25 23:08:07,223 INFO L274 CegarLoopResult]: For program point L95(lines 95 101) no Hoare annotation was computed. [2020-10-25 23:08:07,223 INFO L274 CegarLoopResult]: For program point L95-2(lines 95 101) no Hoare annotation was computed. [2020-10-25 23:08:07,223 INFO L274 CegarLoopResult]: For program point L95-4(lines 95 101) no Hoare annotation was computed. [2020-10-25 23:08:07,223 INFO L270 CegarLoopResult]: At program point L558(lines 553 561) the Hoare annotation is: false [2020-10-25 23:08:07,224 INFO L270 CegarLoopResult]: At program point L558-1(lines 553 561) the Hoare annotation is: (and (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0)) (<= 2 ~waterLevel~0) (= ~pumpRunning~0 0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= ULTIMATE.start_main_~tmp~7 1) (= |ULTIMATE.start_valid_product_#res| 1)) [2020-10-25 23:08:07,224 INFO L270 CegarLoopResult]: At program point L558-2(lines 553 561) the Hoare annotation is: false [2020-10-25 23:08:07,224 INFO L270 CegarLoopResult]: At program point L558-3(lines 553 561) the Hoare annotation is: false [2020-10-25 23:08:07,224 INFO L270 CegarLoopResult]: At program point L558-4(lines 553 561) the Hoare annotation is: false [2020-10-25 23:08:07,224 INFO L274 CegarLoopResult]: For program point L393(lines 393 397) no Hoare annotation was computed. [2020-10-25 23:08:07,226 INFO L270 CegarLoopResult]: At program point L558-5(lines 553 561) the Hoare annotation is: false [2020-10-25 23:08:07,227 INFO L274 CegarLoopResult]: For program point L393-2(lines 393 397) no Hoare annotation was computed. [2020-10-25 23:08:07,227 INFO L274 CegarLoopResult]: For program point L393-3(lines 393 397) no Hoare annotation was computed. [2020-10-25 23:08:07,227 INFO L274 CegarLoopResult]: For program point L228(lines 228 245) no Hoare annotation was computed. [2020-10-25 23:08:07,227 INFO L274 CegarLoopResult]: For program point L393-5(lines 393 397) no Hoare annotation was computed. [2020-10-25 23:08:07,227 INFO L274 CegarLoopResult]: For program point L228-1(lines 228 245) no Hoare annotation was computed. [2020-10-25 23:08:07,228 INFO L274 CegarLoopResult]: For program point L393-6(lines 393 397) no Hoare annotation was computed. [2020-10-25 23:08:07,228 INFO L274 CegarLoopResult]: For program point L228-2(lines 228 245) no Hoare annotation was computed. [2020-10-25 23:08:07,228 INFO L274 CegarLoopResult]: For program point L228-3(lines 228 245) no Hoare annotation was computed. [2020-10-25 23:08:07,228 INFO L274 CegarLoopResult]: For program point L393-8(lines 393 397) no Hoare annotation was computed. [2020-10-25 23:08:07,228 INFO L274 CegarLoopResult]: For program point L228-4(lines 228 245) no Hoare annotation was computed. [2020-10-25 23:08:07,228 INFO L274 CegarLoopResult]: For program point L228-5(lines 228 245) no Hoare annotation was computed. [2020-10-25 23:08:07,229 INFO L270 CegarLoopResult]: At program point L196(lines 195 214) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_main_~tmp~7 1)) (.cse1 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse3 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~waterLevel~0 1) .cse0 .cse1 .cse2 .cse3) (and (not (= 0 ~systemActive~0)) .cse2 .cse1 (<= 1 ~waterLevel~0) .cse3))) [2020-10-25 23:08:07,229 INFO L274 CegarLoopResult]: For program point L196-1(lines 196 202) no Hoare annotation was computed. [2020-10-25 23:08:07,229 INFO L270 CegarLoopResult]: At program point L196-2(lines 195 214) the Hoare annotation is: false [2020-10-25 23:08:07,229 INFO L270 CegarLoopResult]: At program point L196-3(lines 195 214) the Hoare annotation is: false [2020-10-25 23:08:07,229 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-25 23:08:07,230 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-10-25 23:08:07,230 INFO L270 CegarLoopResult]: At program point L430-2(lines 430 444) the Hoare annotation is: false [2020-10-25 23:08:07,230 INFO L274 CegarLoopResult]: For program point L232(lines 232 240) no Hoare annotation was computed. [2020-10-25 23:08:07,230 INFO L274 CegarLoopResult]: For program point L232-1(lines 232 240) no Hoare annotation was computed. [2020-10-25 23:08:07,230 INFO L274 CegarLoopResult]: For program point L232-2(lines 232 240) no Hoare annotation was computed. [2020-10-25 23:08:07,230 INFO L274 CegarLoopResult]: For program point L232-3(lines 232 240) no Hoare annotation was computed. [2020-10-25 23:08:07,230 INFO L274 CegarLoopResult]: For program point L232-4(lines 232 240) no Hoare annotation was computed. [2020-10-25 23:08:07,231 INFO L270 CegarLoopResult]: At program point L67(lines 1 991) the Hoare annotation is: (and (= ~waterLevel~0 1) (= 1 ~systemActive~0) (= ~pumpRunning~0 0)) [2020-10-25 23:08:07,231 INFO L274 CegarLoopResult]: For program point L232-5(lines 232 240) no Hoare annotation was computed. [2020-10-25 23:08:07,231 INFO L274 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-10-25 23:08:07,231 INFO L274 CegarLoopResult]: For program point L134(lines 134 140) no Hoare annotation was computed. [2020-10-25 23:08:07,231 INFO L270 CegarLoopResult]: At program point L134-1(lines 134 140) the Hoare annotation is: (let ((.cse0 (<= 2 ~waterLevel~0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse6 (<= 1 ~waterLevel~0)) (.cse3 (= ULTIMATE.start_main_~tmp~7 1)) (.cse4 (= |ULTIMATE.start_valid_product_#res| 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse3 .cse2 .cse4) (and (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) .cse1 .cse2 .cse6 .cse3 (<= 1 |ULTIMATE.start_getWaterLevel_#res|) .cse4) (and .cse5 .cse1 .cse2 .cse6 .cse3 .cse4))) [2020-10-25 23:08:07,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 11:08:07 BoogieIcfgContainer [2020-10-25 23:08:07,271 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-25 23:08:07,272 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-25 23:08:07,272 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-25 23:08:07,272 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-25 23:08:07,273 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 11:07:49" (3/4) ... [2020-10-25 23:08:07,276 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-25 23:08:07,302 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2020-10-25 23:08:07,303 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2020-10-25 23:08:07,304 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2020-10-25 23:08:07,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-25 23:08:07,307 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-25 23:08:07,308 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:08:07,310 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-25 23:08:07,340 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && \result == 1 [2020-10-25 23:08:07,340 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((waterLevel == 1 && pumpRunning == 0) && tmp == systemActive) && tmp == 1) && \result == 1 [2020-10-25 23:08:07,340 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((((((\result == 0 && 2 <= tmp) && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) [2020-10-25 23:08:07,341 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) [2020-10-25 23:08:07,341 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) [2020-10-25 23:08:07,342 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) [2020-10-25 23:08:07,342 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((!(0 == systemActive) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) [2020-10-25 23:08:07,342 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) [2020-10-25 23:08:07,343 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) [2020-10-25 23:08:07,344 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) || (((((pumpRunning == 0 && splverifierCounter == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) [2020-10-25 23:08:07,344 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(0 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 [2020-10-25 23:08:07,345 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) [2020-10-25 23:08:07,346 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(0 == systemActive)) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 [2020-10-25 23:08:07,346 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 1 && tmp___0 == 0) && !(0 == systemActive)) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) || (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) [2020-10-25 23:08:07,348 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 [2020-10-25 23:08:07,349 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 [2020-10-25 23:08:07,469 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-25 23:08:07,470 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-25 23:08:07,471 INFO L168 Benchmark]: Toolchain (without parser) took 19668.58 ms. Allocated memory was 50.3 MB in the beginning and 237.0 MB in the end (delta: 186.6 MB). Free memory was 34.3 MB in the beginning and 95.1 MB in the end (delta: -60.8 MB). Peak memory consumption was 124.9 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,471 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 41.9 MB. Free memory was 27.3 MB in the beginning and 27.3 MB in the end (delta: 24.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-25 23:08:07,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 745.49 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 23.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 139.69 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 31.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,472 INFO L168 Benchmark]: Boogie Preprocessor took 72.93 ms. Allocated memory is still 50.3 MB. Free memory was 31.1 MB in the beginning and 28.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,473 INFO L168 Benchmark]: RCFGBuilder took 1176.91 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 28.2 MB in the beginning and 33.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,474 INFO L168 Benchmark]: TraceAbstraction took 17313.05 ms. Allocated memory was 62.9 MB in the beginning and 237.0 MB in the end (delta: 174.1 MB). Free memory was 32.7 MB in the beginning and 107.7 MB in the end (delta: -75.0 MB). Peak memory consumption was 135.3 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,475 INFO L168 Benchmark]: Witness Printer took 197.84 ms. Allocated memory is still 237.0 MB. Free memory was 107.7 MB in the beginning and 95.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-10-25 23:08:07,480 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 41.9 MB. Free memory was 27.3 MB in the beginning and 27.3 MB in the end (delta: 24.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 745.49 ms. Allocated memory is still 50.3 MB. Free memory was 33.6 MB in the beginning and 23.6 MB in the end (delta: 10.0 MB). Peak memory consumption was 13.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 139.69 ms. Allocated memory is still 50.3 MB. Free memory was 23.4 MB in the beginning and 31.1 MB in the end (delta: -7.7 MB). Peak memory consumption was 5.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 72.93 ms. Allocated memory is still 50.3 MB. Free memory was 31.1 MB in the beginning and 28.2 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1176.91 ms. Allocated memory was 50.3 MB in the beginning and 62.9 MB in the end (delta: 12.6 MB). Free memory was 28.2 MB in the beginning and 33.1 MB in the end (delta: -4.9 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 17313.05 ms. Allocated memory was 62.9 MB in the beginning and 237.0 MB in the end (delta: 174.1 MB). Free memory was 32.7 MB in the beginning and 107.7 MB in the end (delta: -75.0 MB). Peak memory consumption was 135.3 MB. Max. memory is 16.1 GB. * Witness Printer took 197.84 ms. Allocated memory is still 237.0 MB. Free memory was 107.7 MB in the beginning and 95.1 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1) || (((((waterLevel == 1 && !(0 == systemActive)) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((((((\result == 0 && 2 <= tmp) && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: (((((((((tmp == 1 && tmp___0 == 0) && !(0 == systemActive)) && \result == 0) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) || (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) && \result == 1) - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: (((((((!(\result == 0) && tmp == 0) && !(tmp___0 == 0)) && !(0 == systemActive)) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && 2 <= \result) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1) || (((((pumpRunning == 0 && splverifierCounter == 0) && tmp == 1) && 1 <= waterLevel) && \result == 1) && 1 <= \result) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 407]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && tmp == 1) && splverifierCounter == 0) && \result == 1) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (waterLevel == 1 && 1 == systemActive) && pumpRunning == 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((!(0 == systemActive) && 2 <= waterLevel) && tmp == 1) && splverifierCounter == 0) && \result == 1)) || ((((((1 <= tmp && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && 1 <= \result) && \result == 1)) || (((((!(0 == systemActive) && pumpRunning == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && pumpRunning == 0) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: (((waterLevel == 1 && pumpRunning == 0) && tmp == systemActive) && tmp == 1) && \result == 1 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((waterLevel == 1 && 1 == systemActive) && pumpRunning == 0) && \result == 1 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((((\result == 0 && !(0 == systemActive)) && 2 <= waterLevel) && splverifierCounter == 0) && tmp == 0) && tmp == 1) && \result == 1)) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((((!(0 == systemActive) && \result == 0) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == 1) && \result == 1 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (((((2 <= waterLevel && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1) || ((((waterLevel == 1 && pumpRunning == 0) && splverifierCounter == 0) && tmp == 1) && \result == 1)) || ((((!(0 == systemActive) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && \result == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 140 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 14, TraceHistogramMax: 3, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 12.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1786 SDtfs, 2354 SDslu, 2807 SDs, 0 SdLazy, 384 SolverSat, 72 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 155 GetRequests, 92 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 1480 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 225 NumberOfFragments, 746 HoareAnnotationTreeSize, 56 FomulaSimplifications, 1721946 FormulaSimplificationTreeSizeReduction, 3.3s HoareSimplificationTime, 56 FomulaSimplificationsInter, 629731 FormulaSimplificationTreeSizeReductionInter, 8.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 587 ConstructedInterpolants, 0 QuantifiedInterpolants, 46513 SizeOfPredicates, 4 NumberOfNonLiveVariables, 437 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 15 InterpolantComputations, 13 PerfectInterpolantSequences, 148/154 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...