./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 20ed64ec 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 0.2.1-dev-20ed64e [2021-08-26 08:44:59,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-26 08:44:59,435 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-26 08:44:59,466 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-26 08:44:59,474 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-26 08:44:59,475 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-26 08:44:59,476 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-26 08:44:59,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-26 08:44:59,493 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-26 08:44:59,493 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-26 08:44:59,494 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-26 08:44:59,495 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-26 08:44:59,495 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-26 08:44:59,496 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-26 08:44:59,497 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-26 08:44:59,498 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-26 08:44:59,498 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-26 08:44:59,499 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-26 08:44:59,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-26 08:44:59,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-26 08:44:59,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-26 08:44:59,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-26 08:44:59,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-26 08:44:59,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-26 08:44:59,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-26 08:44:59,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-26 08:44:59,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-26 08:44:59,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-26 08:44:59,523 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-26 08:44:59,523 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-26 08:44:59,524 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-26 08:44:59,524 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-26 08:44:59,524 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-26 08:44:59,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-26 08:44:59,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-26 08:44:59,526 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-26 08:44:59,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-26 08:44:59,527 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-26 08:44:59,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-26 08:44:59,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-26 08:44:59,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-26 08:44:59,529 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-08-26 08:44:59,552 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-26 08:44:59,553 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-26 08:44:59,554 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-26 08:44:59,554 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-26 08:44:59,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-26 08:44:59,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-26 08:44:59,556 INFO L138 SettingsManager]: * Use SBE=true [2021-08-26 08:44:59,556 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-26 08:44:59,556 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-26 08:44:59,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-26 08:44:59,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-26 08:44:59,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-26 08:44:59,557 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:44:59,557 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-26 08:44:59,557 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-26 08:44:59,558 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-26 08:44:59,558 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-26 08:44:59,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-26 08:44:59,558 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-26 08:44:59,558 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-26 08:44:59,558 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 98aa11458fb4d2fb3b93f200d7f1e58878ef4fd5 [2021-08-26 08:44:59,780 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-26 08:44:59,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-26 08:44:59,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-26 08:44:59,812 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-26 08:44:59,812 INFO L275 PluginConnector]: CDTParser initialized [2021-08-26 08:44:59,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2021-08-26 08:44:59,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c173da92/4440afbafd6044bd939d82a136994bb3/FLAGf9639ca10 [2021-08-26 08:45:00,249 INFO L306 CDTParser]: Found 1 translation units. [2021-08-26 08:45:00,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c [2021-08-26 08:45:00,277 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c173da92/4440afbafd6044bd939d82a136994bb3/FLAGf9639ca10 [2021-08-26 08:45:00,609 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c173da92/4440afbafd6044bd939d82a136994bb3 [2021-08-26 08:45:00,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-26 08:45:00,613 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-26 08:45:00,616 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-26 08:45:00,616 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-26 08:45:00,620 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-26 08:45:00,621 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:45:00" (1/1) ... [2021-08-26 08:45:00,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3193a2a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:00, skipping insertion in model container [2021-08-26 08:45:00,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.08 08:45:00" (1/1) ... [2021-08-26 08:45:00,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-26 08:45:00,657 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-26 08:45:00,872 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c[8847,8860] [2021-08-26 08:45:00,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:45:00,944 INFO L203 MainTranslator]: Completed pre-run [2021-08-26 08:45:00,987 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product59.cil.c[8847,8860] [2021-08-26 08:45:01,008 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-26 08:45:01,025 INFO L208 MainTranslator]: Completed translation [2021-08-26 08:45:01,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01 WrapperNode [2021-08-26 08:45:01,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-26 08:45:01,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-26 08:45:01,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-26 08:45:01,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-26 08:45:01,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,053 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,107 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-26 08:45:01,109 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-26 08:45:01,109 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-26 08:45:01,109 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-26 08:45:01,115 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,130 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,157 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,169 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-26 08:45:01,170 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-26 08:45:01,170 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-26 08:45:01,170 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-26 08:45:01,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (1/1) ... [2021-08-26 08:45:01,180 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-26 08:45:01,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:45:01,231 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-26 08:45:01,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-26 08:45:01,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-26 08:45:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-26 08:45:01,317 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-26 08:45:01,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-26 08:45:02,108 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-26 08:45:02,108 INFO L299 CfgBuilder]: Removed 196 assume(true) statements. [2021-08-26 08:45:02,109 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:45:02 BoogieIcfgContainer [2021-08-26 08:45:02,109 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-26 08:45:02,110 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-26 08:45:02,110 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-26 08:45:02,112 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-26 08:45:02,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.08 08:45:00" (1/3) ... [2021-08-26 08:45:02,113 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d7459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:45:02, skipping insertion in model container [2021-08-26 08:45:02,114 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.08 08:45:01" (2/3) ... [2021-08-26 08:45:02,115 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d7459f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.08 08:45:02, skipping insertion in model container [2021-08-26 08:45:02,115 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:45:02" (3/3) ... [2021-08-26 08:45:02,116 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product59.cil.c [2021-08-26 08:45:02,122 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-26 08:45:02,122 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-08-26 08:45:02,162 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-26 08:45:02,167 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-26 08:45:02,167 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-08-26 08:45:02,178 INFO L276 IsEmpty]: Start isEmpty. Operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-26 08:45:02,181 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,181 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:02,182 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,185 INFO L82 PathProgramCache]: Analyzing trace with hash 998639577, now seen corresponding path program 1 times [2021-08-26 08:45:02,191 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085549712] [2021-08-26 08:45:02,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,192 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,353 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085549712] [2021-08-26 08:45:02,354 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085549712] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,354 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,354 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:45:02,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203712607] [2021-08-26 08:45:02,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-08-26 08:45:02,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-08-26 08:45:02,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:45:02,368 INFO L87 Difference]: Start difference. First operand has 137 states, 133 states have (on average 1.5338345864661653) internal successors, (204), 136 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,395 INFO L93 Difference]: Finished difference Result 268 states and 401 transitions. [2021-08-26 08:45:02,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-26 08:45:02,396 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-08-26 08:45:02,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,405 INFO L225 Difference]: With dead ends: 268 [2021-08-26 08:45:02,406 INFO L226 Difference]: Without dead ends: 133 [2021-08-26 08:45:02,409 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-08-26 08:45:02,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2021-08-26 08:45:02,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2021-08-26 08:45:02,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 130 states have (on average 1.476923076923077) internal successors, (192), 132 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 192 transitions. [2021-08-26 08:45:02,457 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 192 transitions. Word has length 16 [2021-08-26 08:45:02,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,458 INFO L470 AbstractCegarLoop]: Abstraction has 133 states and 192 transitions. [2021-08-26 08:45:02,458 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,458 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 192 transitions. [2021-08-26 08:45:02,459 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-08-26 08:45:02,459 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,459 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-26 08:45:02,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-08-26 08:45:02,459 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash -48117320, now seen corresponding path program 1 times [2021-08-26 08:45:02,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681140540] [2021-08-26 08:45:02,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,461 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,517 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681140540] [2021-08-26 08:45:02,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681140540] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,518 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:45:02,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302858405] [2021-08-26 08:45:02,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:45:02,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:45:02,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:02,521 INFO L87 Difference]: Start difference. First operand 133 states and 192 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,529 INFO L93 Difference]: Finished difference Result 133 states and 192 transitions. [2021-08-26 08:45:02,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:45:02,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2021-08-26 08:45:02,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,530 INFO L225 Difference]: With dead ends: 133 [2021-08-26 08:45:02,531 INFO L226 Difference]: Without dead ends: 55 [2021-08-26 08:45:02,531 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:02,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2021-08-26 08:45:02,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2021-08-26 08:45:02,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.462962962962963) internal successors, (79), 54 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 79 transitions. [2021-08-26 08:45:02,535 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 79 transitions. Word has length 17 [2021-08-26 08:45:02,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,535 INFO L470 AbstractCegarLoop]: Abstraction has 55 states and 79 transitions. [2021-08-26 08:45:02,535 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,536 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 79 transitions. [2021-08-26 08:45:02,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-26 08:45:02,536 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,536 INFO L512 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] [2021-08-26 08:45:02,537 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-08-26 08:45:02,537 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,538 INFO L82 PathProgramCache]: Analyzing trace with hash -1725162559, now seen corresponding path program 1 times [2021-08-26 08:45:02,538 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,538 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924800836] [2021-08-26 08:45:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,539 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,615 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,615 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924800836] [2021-08-26 08:45:02,615 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924800836] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,616 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:02,616 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944561251] [2021-08-26 08:45:02,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 08:45:02,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 08:45:02,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:45:02,618 INFO L87 Difference]: Start difference. First operand 55 states and 79 transitions. Second operand has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,723 INFO L93 Difference]: Finished difference Result 176 states and 259 transitions. [2021-08-26 08:45:02,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:02,723 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 22 [2021-08-26 08:45:02,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,724 INFO L225 Difference]: With dead ends: 176 [2021-08-26 08:45:02,724 INFO L226 Difference]: Without dead ends: 127 [2021-08-26 08:45:02,725 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.4ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:02,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2021-08-26 08:45:02,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 74. [2021-08-26 08:45:02,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.4794520547945205) internal successors, (108), 73 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 108 transitions. [2021-08-26 08:45:02,731 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 108 transitions. Word has length 22 [2021-08-26 08:45:02,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,732 INFO L470 AbstractCegarLoop]: Abstraction has 74 states and 108 transitions. [2021-08-26 08:45:02,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 108 transitions. [2021-08-26 08:45:02,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-08-26 08:45:02,732 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,733 INFO L512 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] [2021-08-26 08:45:02,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-08-26 08:45:02,733 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,734 INFO L82 PathProgramCache]: Analyzing trace with hash 1536171928, now seen corresponding path program 1 times [2021-08-26 08:45:02,734 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,734 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345782868] [2021-08-26 08:45:02,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,734 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,781 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,781 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345782868] [2021-08-26 08:45:02,781 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345782868] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,782 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-08-26 08:45:02,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734454679] [2021-08-26 08:45:02,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-26 08:45:02,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-26 08:45:02,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:02,783 INFO L87 Difference]: Start difference. First operand 74 states and 108 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,809 INFO L93 Difference]: Finished difference Result 163 states and 240 transitions. [2021-08-26 08:45:02,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-26 08:45:02,809 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2021-08-26 08:45:02,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,810 INFO L225 Difference]: With dead ends: 163 [2021-08-26 08:45:02,810 INFO L226 Difference]: Without dead ends: 95 [2021-08-26 08:45:02,810 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-26 08:45:02,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-08-26 08:45:02,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2021-08-26 08:45:02,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 92 states have (on average 1.434782608695652) internal successors, (132), 92 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 132 transitions. [2021-08-26 08:45:02,817 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 132 transitions. Word has length 24 [2021-08-26 08:45:02,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,817 INFO L470 AbstractCegarLoop]: Abstraction has 93 states and 132 transitions. [2021-08-26 08:45:02,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 2 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,817 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 132 transitions. [2021-08-26 08:45:02,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-26 08:45:02,818 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,818 INFO L512 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] [2021-08-26 08:45:02,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-08-26 08:45:02,818 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,819 INFO L82 PathProgramCache]: Analyzing trace with hash 1391898518, now seen corresponding path program 1 times [2021-08-26 08:45:02,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537529198] [2021-08-26 08:45:02,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,820 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,866 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537529198] [2021-08-26 08:45:02,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537529198] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,867 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,867 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:02,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006004349] [2021-08-26 08:45:02,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:02,868 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:02,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,869 INFO L87 Difference]: Start difference. First operand 93 states and 132 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:02,937 INFO L93 Difference]: Finished difference Result 331 states and 477 transitions. [2021-08-26 08:45:02,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:02,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-08-26 08:45:02,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:02,938 INFO L225 Difference]: With dead ends: 331 [2021-08-26 08:45:02,939 INFO L226 Difference]: Without dead ends: 244 [2021-08-26 08:45:02,939 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 244 states. [2021-08-26 08:45:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 244 to 155. [2021-08-26 08:45:02,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.396103896103896) internal successors, (215), 154 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 215 transitions. [2021-08-26 08:45:02,949 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 215 transitions. Word has length 25 [2021-08-26 08:45:02,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:02,950 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 215 transitions. [2021-08-26 08:45:02,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:02,950 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 215 transitions. [2021-08-26 08:45:02,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-08-26 08:45:02,951 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:02,951 INFO L512 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] [2021-08-26 08:45:02,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-08-26 08:45:02,951 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:02,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:02,952 INFO L82 PathProgramCache]: Analyzing trace with hash -567410472, now seen corresponding path program 1 times [2021-08-26 08:45:02,952 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:02,952 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987114986] [2021-08-26 08:45:02,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:02,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:02,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:02,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:02,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:02,992 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987114986] [2021-08-26 08:45:02,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987114986] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:02,992 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:02,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:02,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374350573] [2021-08-26 08:45:02,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:02,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:02,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:02,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:02,994 INFO L87 Difference]: Start difference. First operand 155 states and 215 transitions. Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,079 INFO L93 Difference]: Finished difference Result 327 states and 462 transitions. [2021-08-26 08:45:03,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:45:03,080 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2021-08-26 08:45:03,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,081 INFO L225 Difference]: With dead ends: 327 [2021-08-26 08:45:03,081 INFO L226 Difference]: Without dead ends: 325 [2021-08-26 08:45:03,086 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 32.3ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-08-26 08:45:03,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2021-08-26 08:45:03,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 155. [2021-08-26 08:45:03,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.3831168831168832) internal successors, (213), 154 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2021-08-26 08:45:03,106 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 26 [2021-08-26 08:45:03,106 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,106 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2021-08-26 08:45:03,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,107 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2021-08-26 08:45:03,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 08:45:03,111 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,111 INFO L512 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] [2021-08-26 08:45:03,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-08-26 08:45:03,111 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,112 INFO L82 PathProgramCache]: Analyzing trace with hash -474783860, now seen corresponding path program 1 times [2021-08-26 08:45:03,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518580287] [2021-08-26 08:45:03,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:03,176 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518580287] [2021-08-26 08:45:03,176 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518580287] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,176 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,176 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-26 08:45:03,176 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820877738] [2021-08-26 08:45:03,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:45:03,177 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:45:03,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:03,178 INFO L87 Difference]: Start difference. First operand 155 states and 213 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,253 INFO L93 Difference]: Finished difference Result 320 states and 447 transitions. [2021-08-26 08:45:03,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:45:03,253 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-08-26 08:45:03,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,254 INFO L225 Difference]: With dead ends: 320 [2021-08-26 08:45:03,254 INFO L226 Difference]: Without dead ends: 233 [2021-08-26 08:45:03,255 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4.5ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2021-08-26 08:45:03,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 230. [2021-08-26 08:45:03,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.3799126637554586) internal successors, (316), 229 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 316 transitions. [2021-08-26 08:45:03,267 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 316 transitions. Word has length 34 [2021-08-26 08:45:03,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,268 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 316 transitions. [2021-08-26 08:45:03,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,268 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 316 transitions. [2021-08-26 08:45:03,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 08:45:03,270 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,271 INFO L512 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] [2021-08-26 08:45:03,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-08-26 08:45:03,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1754647538, now seen corresponding path program 1 times [2021-08-26 08:45:03,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,272 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704446381] [2021-08-26 08:45:03,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,273 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:03,325 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,326 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704446381] [2021-08-26 08:45:03,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704446381] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,326 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:03,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982551009] [2021-08-26 08:45:03,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:45:03,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:45:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:03,329 INFO L87 Difference]: Start difference. First operand 230 states and 316 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,379 INFO L93 Difference]: Finished difference Result 679 states and 946 transitions. [2021-08-26 08:45:03,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:45:03,379 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-08-26 08:45:03,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,381 INFO L225 Difference]: With dead ends: 679 [2021-08-26 08:45:03,381 INFO L226 Difference]: Without dead ends: 516 [2021-08-26 08:45:03,381 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:03,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516 states. [2021-08-26 08:45:03,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 516 to 230. [2021-08-26 08:45:03,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 230 states, 229 states have (on average 1.3711790393013101) internal successors, (314), 229 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 314 transitions. [2021-08-26 08:45:03,394 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 314 transitions. Word has length 34 [2021-08-26 08:45:03,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,395 INFO L470 AbstractCegarLoop]: Abstraction has 230 states and 314 transitions. [2021-08-26 08:45:03,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,395 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 314 transitions. [2021-08-26 08:45:03,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-08-26 08:45:03,396 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,396 INFO L512 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] [2021-08-26 08:45:03,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-08-26 08:45:03,396 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1953513744, now seen corresponding path program 1 times [2021-08-26 08:45:03,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,397 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545489659] [2021-08-26 08:45:03,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,397 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:03,451 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,451 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545489659] [2021-08-26 08:45:03,452 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545489659] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,452 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,452 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:03,452 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699293788] [2021-08-26 08:45:03,452 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:03,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:03,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:03,455 INFO L87 Difference]: Start difference. First operand 230 states and 314 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,596 INFO L93 Difference]: Finished difference Result 505 states and 699 transitions. [2021-08-26 08:45:03,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:03,599 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-08-26 08:45:03,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,600 INFO L225 Difference]: With dead ends: 505 [2021-08-26 08:45:03,600 INFO L226 Difference]: Without dead ends: 342 [2021-08-26 08:45:03,601 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 25.3ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:03,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-08-26 08:45:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 256. [2021-08-26 08:45:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 1.380392156862745) internal successors, (352), 255 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 352 transitions. [2021-08-26 08:45:03,617 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 352 transitions. Word has length 34 [2021-08-26 08:45:03,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,618 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 352 transitions. [2021-08-26 08:45:03,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,618 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 352 transitions. [2021-08-26 08:45:03,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-26 08:45:03,619 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,620 INFO L512 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] [2021-08-26 08:45:03,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-08-26 08:45:03,620 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,621 INFO L82 PathProgramCache]: Analyzing trace with hash 1169821653, now seen corresponding path program 1 times [2021-08-26 08:45:03,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,622 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772794425] [2021-08-26 08:45:03,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,623 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,676 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 08:45:03,676 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,677 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1772794425] [2021-08-26 08:45:03,677 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1772794425] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,677 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,677 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:03,677 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170379762] [2021-08-26 08:45:03,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:03,678 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:03,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:03,679 INFO L87 Difference]: Start difference. First operand 256 states and 352 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,741 INFO L93 Difference]: Finished difference Result 778 states and 1068 transitions. [2021-08-26 08:45:03,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-26 08:45:03,742 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-26 08:45:03,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,754 INFO L225 Difference]: With dead ends: 778 [2021-08-26 08:45:03,754 INFO L226 Difference]: Without dead ends: 528 [2021-08-26 08:45:03,755 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:45:03,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2021-08-26 08:45:03,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 265. [2021-08-26 08:45:03,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.3674242424242424) internal successors, (361), 264 states have internal predecessors, (361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 361 transitions. [2021-08-26 08:45:03,769 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 361 transitions. Word has length 54 [2021-08-26 08:45:03,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,770 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 361 transitions. [2021-08-26 08:45:03,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,770 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 361 transitions. [2021-08-26 08:45:03,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-08-26 08:45:03,771 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,771 INFO L512 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] [2021-08-26 08:45:03,772 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-08-26 08:45:03,772 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,772 INFO L82 PathProgramCache]: Analyzing trace with hash -1074161645, now seen corresponding path program 1 times [2021-08-26 08:45:03,772 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,774 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777030715] [2021-08-26 08:45:03,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,774 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-08-26 08:45:03,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777030715] [2021-08-26 08:45:03,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777030715] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:03,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:03,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-08-26 08:45:03,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232722107] [2021-08-26 08:45:03,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-08-26 08:45:03,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:03,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-08-26 08:45:03,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-08-26 08:45:03,819 INFO L87 Difference]: Start difference. First operand 265 states and 361 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:03,856 INFO L93 Difference]: Finished difference Result 609 states and 830 transitions. [2021-08-26 08:45:03,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-08-26 08:45:03,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2021-08-26 08:45:03,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:03,858 INFO L225 Difference]: With dead ends: 609 [2021-08-26 08:45:03,858 INFO L226 Difference]: Without dead ends: 350 [2021-08-26 08:45:03,858 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:03,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2021-08-26 08:45:03,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 224. [2021-08-26 08:45:03,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 223 states have (on average 1.3408071748878925) internal successors, (299), 223 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 299 transitions. [2021-08-26 08:45:03,871 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 299 transitions. Word has length 54 [2021-08-26 08:45:03,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:03,872 INFO L470 AbstractCegarLoop]: Abstraction has 224 states and 299 transitions. [2021-08-26 08:45:03,872 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:03,872 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 299 transitions. [2021-08-26 08:45:03,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-08-26 08:45:03,873 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:03,873 INFO L512 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] [2021-08-26 08:45:03,873 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-08-26 08:45:03,874 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:03,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:03,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1418553649, now seen corresponding path program 1 times [2021-08-26 08:45:03,874 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:03,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308198414] [2021-08-26 08:45:03,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,875 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:03,941 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:03,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:03,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308198414] [2021-08-26 08:45:03,942 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308198414] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:45:03,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149956623] [2021-08-26 08:45:03,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:03,942 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-26 08:45:03,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-26 08:45:03,968 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-26 08:45:04,009 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-08-26 08:45:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:04,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-26 08:45:04,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-26 08:45:04,353 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 11 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-26 08:45:04,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149956623] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-26 08:45:04,353 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-26 08:45:04,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2021-08-26 08:45:04,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700746294] [2021-08-26 08:45:04,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-26 08:45:04,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:04,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-26 08:45:04,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-08-26 08:45:04,355 INFO L87 Difference]: Start difference. First operand 224 states and 299 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:04,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:04,499 INFO L93 Difference]: Finished difference Result 636 states and 864 transitions. [2021-08-26 08:45:04,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-26 08:45:04,500 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-08-26 08:45:04,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:04,502 INFO L225 Difference]: With dead ends: 636 [2021-08-26 08:45:04,502 INFO L226 Difference]: Without dead ends: 466 [2021-08-26 08:45:04,503 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 48.2ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2021-08-26 08:45:04,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2021-08-26 08:45:04,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 272. [2021-08-26 08:45:04,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 1.3394833948339484) internal successors, (363), 271 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:04,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 363 transitions. [2021-08-26 08:45:04,520 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 363 transitions. Word has length 55 [2021-08-26 08:45:04,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:04,521 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 363 transitions. [2021-08-26 08:45:04,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:04,521 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 363 transitions. [2021-08-26 08:45:04,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-26 08:45:04,522 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:04,522 INFO L512 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] [2021-08-26 08:45:04,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-08-26 08:45:04,745 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-08-26 08:45:04,745 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:04,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:04,745 INFO L82 PathProgramCache]: Analyzing trace with hash 242065008, now seen corresponding path program 2 times [2021-08-26 08:45:04,746 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:04,746 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091049689] [2021-08-26 08:45:04,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:04,746 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:04,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:04,851 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-08-26 08:45:04,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:04,852 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091049689] [2021-08-26 08:45:04,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091049689] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:04,852 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:04,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:04,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741009247] [2021-08-26 08:45:04,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:04,853 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:04,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:04,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:04,854 INFO L87 Difference]: Start difference. First operand 272 states and 363 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:05,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:05,117 INFO L93 Difference]: Finished difference Result 853 states and 1154 transitions. [2021-08-26 08:45:05,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-26 08:45:05,117 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-08-26 08:45:05,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:05,119 INFO L225 Difference]: With dead ends: 853 [2021-08-26 08:45:05,119 INFO L226 Difference]: Without dead ends: 628 [2021-08-26 08:45:05,120 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 78.0ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-08-26 08:45:05,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2021-08-26 08:45:05,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 376. [2021-08-26 08:45:05,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 1.336) internal successors, (501), 375 states have internal predecessors, (501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:05,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 501 transitions. [2021-08-26 08:45:05,146 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 501 transitions. Word has length 76 [2021-08-26 08:45:05,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:05,146 INFO L470 AbstractCegarLoop]: Abstraction has 376 states and 501 transitions. [2021-08-26 08:45:05,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 5 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:05,146 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 501 transitions. [2021-08-26 08:45:05,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-08-26 08:45:05,147 INFO L504 BasicCegarLoop]: Found error trace [2021-08-26 08:45:05,147 INFO L512 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] [2021-08-26 08:45:05,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-08-26 08:45:05,147 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-08-26 08:45:05,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-26 08:45:05,148 INFO L82 PathProgramCache]: Analyzing trace with hash 516824622, now seen corresponding path program 1 times [2021-08-26 08:45:05,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-26 08:45:05,148 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323995750] [2021-08-26 08:45:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-26 08:45:05,148 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-26 08:45:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-26 08:45:05,187 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-26 08:45:05,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-26 08:45:05,188 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323995750] [2021-08-26 08:45:05,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323995750] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-26 08:45:05,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-26 08:45:05,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-08-26 08:45:05,188 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705994853] [2021-08-26 08:45:05,189 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-26 08:45:05,189 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-26 08:45:05,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-26 08:45:05,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-26 08:45:05,189 INFO L87 Difference]: Start difference. First operand 376 states and 501 transitions. Second operand has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:05,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-26 08:45:05,237 INFO L93 Difference]: Finished difference Result 720 states and 959 transitions. [2021-08-26 08:45:05,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-26 08:45:05,237 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 76 [2021-08-26 08:45:05,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-26 08:45:05,237 INFO L225 Difference]: With dead ends: 720 [2021-08-26 08:45:05,237 INFO L226 Difference]: Without dead ends: 0 [2021-08-26 08:45:05,238 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-08-26 08:45:05,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-08-26 08:45:05,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-08-26 08:45:05,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:05,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-08-26 08:45:05,239 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2021-08-26 08:45:05,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-26 08:45:05,239 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-08-26 08:45:05,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.0) internal successors, (65), 5 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-26 08:45:05,239 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-08-26 08:45:05,239 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-08-26 08:45:05,241 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:45:05,241 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:45:05,242 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-08-26 08:45:05,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-08-26 08:45:05,243 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-08-26 08:45:05,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,248 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,249 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,281 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,322 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,324 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,325 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,326 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,339 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,340 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,341 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,607 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:05,822 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,136 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,137 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,151 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,152 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,154 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,155 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,222 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,223 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,399 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,412 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,413 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,555 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,556 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:06,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 622) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L853 garLoopResultBuilder]: At program point L399(lines 384 402) the Hoare annotation is: (and (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (= ULTIMATE.start_isLowWaterLevel_~tmp~6 0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~3 1) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2021-08-26 08:45:11,347 INFO L853 garLoopResultBuilder]: At program point L399-1(lines 384 402) the Hoare annotation is: false [2021-08-26 08:45:11,347 INFO L853 garLoopResultBuilder]: At program point L399-2(lines 384 402) the Hoare annotation is: false [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L598(lines 598 604) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L598-1(lines 598 604) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L598-2(lines 598 604) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L598-3(lines 598 604) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L598-4(lines 598 604) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L598-5(lines 598 604) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L533(lines 533 537) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L434(lines 434 438) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L857 garLoopResultBuilder]: For program point L434-1(lines 196 202) no Hoare annotation was computed. [2021-08-26 08:45:11,347 INFO L853 garLoopResultBuilder]: At program point L203(lines 203 209) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) (and .cse0 .cse1 (= ~waterLevel~0 1)))) [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L203-1(lines 203 209) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L203-2(lines 203 209) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L501(lines 501 508) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L860 garLoopResultBuilder]: At program point L501-1(lines 501 508) the Hoare annotation is: true [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L172(lines 123 173) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L603(lines 594 607) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L603-1(lines 594 607) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (<= 1 ~waterLevel~0) .cse2))) [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L603-2(lines 594 607) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L603-3(lines 594 607) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L603-4(lines 594 607) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L603-5(lines 594 607) the Hoare annotation is: false [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L75(lines 70 78) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 622) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L407(lines 407 413) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L853 garLoopResultBuilder]: At program point L407-1(lines 407 413) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0)) (and .cse0 .cse1 (= ~waterLevel~0 1)))) [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-2(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-3(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-5(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-6(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-8(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-9(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,348 INFO L857 garLoopResultBuilder]: For program point L374-11(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L857 garLoopResultBuilder]: For program point L374-12(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L857 garLoopResultBuilder]: For program point L374-14(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L857 garLoopResultBuilder]: For program point L374-15(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L857 garLoopResultBuilder]: For program point L374-17(lines 374 378) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L857 garLoopResultBuilder]: For program point L144(lines 144 150) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L144-1(lines 144 150) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 .cse2 .cse4) (and .cse0 .cse1 .cse3 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-08-26 08:45:11,349 INFO L860 garLoopResultBuilder]: At program point L510(lines 491 513) the Hoare annotation is: true [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L478(lines 474 480) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res| ~systemActive~0) (= ULTIMATE.start_main_~tmp~7 ~systemActive~0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:11,349 INFO L857 garLoopResultBuilder]: For program point L545(lines 545 549) no Hoare annotation was computed. [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L380(lines 365 383) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L380-1(lines 365 383) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= ULTIMATE.start_isHighWaterLevel_~tmp~5 1) (= ULTIMATE.start_isHighWaterLevel_~tmp___0~2 0) (= |ULTIMATE.start_isHighWaterLevel_#res| 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) (<= 1 ~waterLevel~0) .cse2) (and .cse0 .cse1 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse2))) [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L380-2(lines 365 383) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L380-3(lines 365 383) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L380-4(lines 365 383) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L380-5(lines 365 383) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L613(lines 608 616) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))) [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L613-1(lines 608 616) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L613-2(lines 608 616) the Hoare annotation is: false [2021-08-26 08:45:11,349 INFO L853 garLoopResultBuilder]: At program point L316(lines 309 319) the Hoare annotation is: false [2021-08-26 08:45:11,350 INFO L853 garLoopResultBuilder]: At program point L316-1(lines 309 319) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) [2021-08-26 08:45:11,350 INFO L853 garLoopResultBuilder]: At program point L316-2(lines 309 319) the Hoare annotation is: false [2021-08-26 08:45:11,351 INFO L853 garLoopResultBuilder]: At program point L316-3(lines 309 319) the Hoare annotation is: false [2021-08-26 08:45:11,351 INFO L853 garLoopResultBuilder]: At program point L316-4(lines 309 319) the Hoare annotation is: false [2021-08-26 08:45:11,351 INFO L853 garLoopResultBuilder]: At program point L316-5(lines 309 319) the Hoare annotation is: false [2021-08-26 08:45:11,351 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-08-26 08:45:11,351 INFO L857 garLoopResultBuilder]: For program point L154(lines 154 167) no Hoare annotation was computed. [2021-08-26 08:45:11,351 INFO L857 garLoopResultBuilder]: For program point L254(lines 254 271) no Hoare annotation was computed. [2021-08-26 08:45:11,351 INFO L857 garLoopResultBuilder]: For program point L254-1(lines 254 271) no Hoare annotation was computed. [2021-08-26 08:45:11,351 INFO L857 garLoopResultBuilder]: For program point L254-2(lines 254 271) no Hoare annotation was computed. [2021-08-26 08:45:11,351 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L91(lines 91 104) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L853 garLoopResultBuilder]: At program point L91-1(lines 1 991) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2) (and .cse0 .cse1 (<= 1 ~waterLevel~0) (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (<= 2 ~waterLevel~0) (<= 2 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) .cse2))) [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L91-2(lines 91 104) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L853 garLoopResultBuilder]: At program point L91-3(lines 1 991) the Hoare annotation is: false [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L91-4(lines 91 104) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L853 garLoopResultBuilder]: At program point L91-5(lines 1 991) the Hoare annotation is: false [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L521(lines 521 525) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L521-3(lines 521 525) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L521-6(lines 521 525) no Hoare annotation was computed. [2021-08-26 08:45:11,352 INFO L857 garLoopResultBuilder]: For program point L125(lines 124 171) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L291(lines 291 297) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L258(lines 258 266) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L291-2(lines 291 297) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L258-1(lines 258 266) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L258-2(lines 258 266) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L291-4(lines 291 297) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L126(lines 126 130) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L291-6(lines 291 297) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L291-8(lines 291 297) no Hoare annotation was computed. [2021-08-26 08:45:11,353 INFO L857 garLoopResultBuilder]: For program point L291-10(lines 291 297) no Hoare annotation was computed. [2021-08-26 08:45:11,354 INFO L857 garLoopResultBuilder]: For program point L622(line 622) no Hoare annotation was computed. [2021-08-26 08:45:11,354 INFO L857 garLoopResultBuilder]: For program point L622-1(line 622) no Hoare annotation was computed. [2021-08-26 08:45:11,354 INFO L857 garLoopResultBuilder]: For program point L622-2(line 622) no Hoare annotation was computed. [2021-08-26 08:45:11,354 INFO L853 garLoopResultBuilder]: At program point L325(lines 320 328) the Hoare annotation is: false [2021-08-26 08:45:11,354 INFO L853 garLoopResultBuilder]: At program point L325-1(lines 320 328) the Hoare annotation is: false [2021-08-26 08:45:11,354 INFO L853 garLoopResultBuilder]: At program point L325-2(lines 320 328) the Hoare annotation is: false [2021-08-26 08:45:11,354 INFO L857 garLoopResultBuilder]: For program point L160(lines 160 166) no Hoare annotation was computed. [2021-08-26 08:45:11,354 INFO L853 garLoopResultBuilder]: At program point L160-1(lines 196 202) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (not (= 0 ~systemActive~0))) (and .cse0 .cse1 (= ~waterLevel~0 1)))) [2021-08-26 08:45:11,354 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-08-26 08:45:11,354 INFO L853 garLoopResultBuilder]: At program point L590(lines 585 593) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 (= ~pumpRunning~0 0) (<= 1 ~waterLevel~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)) (and .cse0 (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (<= 2 |ULTIMATE.start_getWaterLevel_#res|) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))))) [2021-08-26 08:45:11,355 INFO L853 garLoopResultBuilder]: At program point L590-1(lines 585 593) the Hoare annotation is: false [2021-08-26 08:45:11,355 INFO L853 garLoopResultBuilder]: At program point L590-2(lines 585 593) the Hoare annotation is: false [2021-08-26 08:45:11,355 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 101) no Hoare annotation was computed. [2021-08-26 08:45:11,355 INFO L857 garLoopResultBuilder]: For program point L95-2(lines 95 101) no Hoare annotation was computed. [2021-08-26 08:45:11,355 INFO L857 garLoopResultBuilder]: For program point L95-4(lines 95 101) no Hoare annotation was computed. [2021-08-26 08:45:11,355 INFO L853 garLoopResultBuilder]: At program point L558(lines 553 561) the Hoare annotation is: false [2021-08-26 08:45:11,355 INFO L853 garLoopResultBuilder]: At program point L558-1(lines 553 561) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0) (= ULTIMATE.start_isHighWaterLevel_~tmp~5 0) (= |ULTIMATE.start_isHighWaterSensorDry_#res| 0) (not (= 0 ~systemActive~0))) [2021-08-26 08:45:11,355 INFO L853 garLoopResultBuilder]: At program point L558-2(lines 553 561) the Hoare annotation is: false [2021-08-26 08:45:11,355 INFO L853 garLoopResultBuilder]: At program point L558-3(lines 553 561) the Hoare annotation is: false [2021-08-26 08:45:11,356 INFO L853 garLoopResultBuilder]: At program point L558-4(lines 553 561) the Hoare annotation is: false [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L393(lines 393 397) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L853 garLoopResultBuilder]: At program point L558-5(lines 553 561) the Hoare annotation is: false [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L393-2(lines 393 397) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L393-3(lines 393 397) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L228(lines 228 245) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L393-5(lines 393 397) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L228-1(lines 228 245) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L393-6(lines 393 397) no Hoare annotation was computed. [2021-08-26 08:45:11,356 INFO L857 garLoopResultBuilder]: For program point L228-2(lines 228 245) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point L228-3(lines 228 245) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point L393-8(lines 393 397) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point L228-4(lines 228 245) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point L228-5(lines 228 245) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L853 garLoopResultBuilder]: At program point L196(lines 195 214) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0)) (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 1 ~waterLevel~0) (not (= 0 ~systemActive~0))))) [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point L196-1(lines 196 202) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L853 garLoopResultBuilder]: At program point L196-2(lines 195 214) the Hoare annotation is: false [2021-08-26 08:45:11,357 INFO L853 garLoopResultBuilder]: At program point L196-3(lines 195 214) the Hoare annotation is: false [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-08-26 08:45:11,357 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 622) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L853 garLoopResultBuilder]: At program point L430-2(lines 430 444) the Hoare annotation is: false [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L232(lines 232 240) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L232-1(lines 232 240) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L232-2(lines 232 240) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L232-3(lines 232 240) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L232-4(lines 232 240) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L853 garLoopResultBuilder]: At program point L67(lines 1 991) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L232-5(lines 232 240) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2021-08-26 08:45:11,358 INFO L857 garLoopResultBuilder]: For program point L134(lines 134 140) no Hoare annotation was computed. [2021-08-26 08:45:11,359 INFO L853 garLoopResultBuilder]: At program point L134-1(lines 134 140) the Hoare annotation is: (let ((.cse2 (<= 2 ~waterLevel~0)) (.cse4 (not (= 0 ~systemActive~0))) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse3 .cse4) (and .cse0 .cse2 .cse4) (and .cse0 .cse1 .cse3 (<= 1 ULTIMATE.start___utac_acc__Specification4_spec__1_~tmp~0) (<= 1 |ULTIMATE.start_getWaterLevel_#res|)))) [2021-08-26 08:45:11,361 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-26 08:45:11,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.08 08:45:11 BoogieIcfgContainer [2021-08-26 08:45:11,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-26 08:45:11,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-26 08:45:11,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-26 08:45:11,378 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-26 08:45:11,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.08 08:45:02" (3/4) ... [2021-08-26 08:45:11,380 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-08-26 08:45:11,392 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-08-26 08:45:11,393 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-08-26 08:45:11,394 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-08-26 08:45:11,394 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-08-26 08:45:11,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-08-26 08:45:11,395 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:45:11,396 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-08-26 08:45:11,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == systemActive) && 1 == systemActive) && waterLevel == 1 [2021-08-26 08:45:11,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == systemActive) && tmp == systemActive) && 1 == systemActive) && waterLevel == 1 [2021-08-26 08:45:11,411 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= tmp) && 1 <= \result)) || ((((((splverifierCounter == 0 && 2 <= waterLevel) && 2 <= tmp) && tmp == 0) && 2 <= \result) && \result == 0) && !(0 == systemActive)) [2021-08-26 08:45:11,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && !(0 == systemActive))) || ((splverifierCounter == 0 && 2 <= waterLevel) && !(0 == systemActive))) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= tmp) && 1 <= \result) [2021-08-26 08:45:11,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && !(0 == systemActive))) || ((splverifierCounter == 0 && 2 <= waterLevel) && !(0 == systemActive))) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= tmp) && 1 <= \result) [2021-08-26 08:45:11,412 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive))) || ((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) [2021-08-26 08:45:11,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= \result) || (((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 2 <= \result) && \result == 0) && !(0 == systemActive)) [2021-08-26 08:45:11,413 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((splverifierCounter == 0 && \result == 0) && 1 <= waterLevel) && !(0 == systemActive) [2021-08-26 08:45:11,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && \result == 0) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 <= waterLevel) && !(0 == systemActive)) [2021-08-26 08:45:11,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((\result == 1 && splverifierCounter == 0) && \result == 0) && tmp == 0) && tmp___0 == 1) && 1 <= waterLevel) && !(0 == systemActive) [2021-08-26 08:45:11,414 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && tmp___0 == 0) && \result == 0) && \result == 1) && 1 <= waterLevel) && !(0 == systemActive)) || (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive)) [2021-08-26 08:45:11,415 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive) [2021-08-26 08:45:11,416 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive) [2021-08-26 08:45:11,446 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-26 08:45:11,446 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-26 08:45:11,447 INFO L168 Benchmark]: Toolchain (without parser) took 10834.50 ms. Allocated memory was 56.6 MB in the beginning and 285.2 MB in the end (delta: 228.6 MB). Free memory was 40.8 MB in the beginning and 146.4 MB in the end (delta: -105.6 MB). Peak memory consumption was 121.8 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,448 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-26 08:45:11,448 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.76 ms. Allocated memory is still 56.6 MB. Free memory was 40.4 MB in the beginning and 31.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,448 INFO L168 Benchmark]: Boogie Procedure Inliner took 81.04 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 38.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,448 INFO L168 Benchmark]: Boogie Preprocessor took 60.30 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 35.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,449 INFO L168 Benchmark]: RCFGBuilder took 939.73 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 45.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,449 INFO L168 Benchmark]: TraceAbstraction took 9266.69 ms. Allocated memory was 71.3 MB in the beginning and 285.2 MB in the end (delta: 213.9 MB). Free memory was 44.8 MB in the beginning and 157.9 MB in the end (delta: -113.1 MB). Peak memory consumption was 165.3 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,449 INFO L168 Benchmark]: Witness Printer took 68.98 ms. Allocated memory is still 285.2 MB. Free memory was 157.9 MB in the beginning and 146.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-26 08:45:11,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 46.1 MB. Free memory was 27.5 MB in the beginning and 27.5 MB in the end (delta: 33.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.76 ms. Allocated memory is still 56.6 MB. Free memory was 40.4 MB in the beginning and 31.6 MB in the end (delta: 8.8 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 81.04 ms. Allocated memory is still 56.6 MB. Free memory was 31.6 MB in the beginning and 38.3 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 60.30 ms. Allocated memory is still 56.6 MB. Free memory was 38.3 MB in the beginning and 35.5 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 939.73 ms. Allocated memory was 56.6 MB in the beginning and 71.3 MB in the end (delta: 14.7 MB). Free memory was 35.5 MB in the beginning and 45.2 MB in the end (delta: -9.7 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 9266.69 ms. Allocated memory was 71.3 MB in the beginning and 285.2 MB in the end (delta: 213.9 MB). Free memory was 44.8 MB in the beginning and 157.9 MB in the end (delta: -113.1 MB). Peak memory consumption was 165.3 MB. Max. memory is 16.1 GB. * Witness Printer took 68.98 ms. Allocated memory is still 285.2 MB. Free memory was 157.9 MB in the beginning and 146.4 MB in the end (delta: 11.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 622]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 622]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 622]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 137 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9200.4ms, OverallIterations: 14, TraceHistogramMax: 3, EmptinessCheckTime: 20.0ms, AutomataDifference: 1224.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 6104.2ms, InitialAbstractionConstructionTime: 7.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1761 SDtfs, 2317 SDslu, 2834 SDs, 0 SdLazy, 389 SolverSat, 74 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 529.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 90 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 294.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=376occurred in iteration=13, InterpolantAutomatonStates: 75, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 196.4ms AutomataMinimizationTime, 14 MinimizatonAttempts, 1524 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: 0.0ms HoareAnnotationTime, 56 LocationsWithAnnotation, 56 PreInvPairs, 198 NumberOfFragments, 552 HoareAnnotationTreeSize, 56 FomulaSimplifications, 907564 FormulaSimplificationTreeSizeReduction, 1317.4ms HoareSimplificationTime, 56 FomulaSimplificationsInter, 926694 FormulaSimplificationTreeSizeReductionInter, 4767.4ms HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 59.1ms SsaConstructionTime, 295.6ms SatisfiabilityAnalysisTime, 762.9ms InterpolantComputationTime, 602 NumberOfCodeBlocks, 602 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 587 ConstructedInterpolants, 0 QuantifiedInterpolants, 1028 SizeOfPredicates, 3 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 - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: 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: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && tmp == 1) && tmp___0 == 0) && \result == 0) && \result == 1) && 1 <= waterLevel) && !(0 == systemActive)) || (((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive) - InvariantResult [Line: 491]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 608]: 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: 407]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || ((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive))) || ((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && \result == 0) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 <= waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 501]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 196]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || ((splverifierCounter == 0 && 2 <= waterLevel) && !(0 == systemActive))) || ((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && !(0 == systemActive))) || ((splverifierCounter == 0 && 2 <= waterLevel) && !(0 == systemActive))) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= tmp) && 1 <= \result) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1) && !(0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= tmp) && 1 <= \result)) || ((((((splverifierCounter == 0 && 2 <= waterLevel) && 2 <= tmp) && tmp == 0) && 2 <= \result) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: ((splverifierCounter == 0 && \result == 0) && 1 <= waterLevel) && !(0 == systemActive) - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) && tmp == 0) && \result == 0) && !(0 == systemActive) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= \result) || (((((splverifierCounter == 0 && 2 <= waterLevel) && tmp == 0) && 2 <= \result) && \result == 0) && !(0 == systemActive)) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || (((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && !(0 == systemActive))) || ((splverifierCounter == 0 && 2 <= waterLevel) && !(0 == systemActive))) || ((((splverifierCounter == 0 && pumpRunning == 0) && 1 <= waterLevel) && 1 <= tmp) && 1 <= \result) - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 430]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 608]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == systemActive) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 553]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 474]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == systemActive) && tmp == systemActive) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 2 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && waterLevel == 1)) || ((splverifierCounter == 0 && 1 <= waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 594]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 384]: Loop Invariant Derived loop invariant: (((((\result == 1 && splverifierCounter == 0) && \result == 0) && tmp == 0) && tmp___0 == 1) && 1 <= waterLevel) && !(0 == systemActive) RESULT: Ultimate proved your program to be correct! [2021-08-26 08:45:11,486 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...