./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg --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 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:55:31,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:55:31,948 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:55:31,986 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:55:31,987 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:55:31,989 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:55:31,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:55:31,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:55:31,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:55:32,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:55:32,002 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:55:32,004 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:55:32,005 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:55:32,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:55:32,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:55:32,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:55:32,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:55:32,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:55:32,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:55:32,023 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:55:32,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:55:32,028 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:55:32,031 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:55:32,032 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:55:32,037 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:55:32,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:55:32,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:55:32,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:55:32,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:55:32,051 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:55:32,051 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:55:32,053 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:55:32,054 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:55:32,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:55:32,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:55:32,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:55:32,060 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:55:32,061 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:55:32,061 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:55:32,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:55:32,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:55:32,066 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:55:32,098 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:55:32,099 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:55:32,099 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:55:32,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:55:32,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:55:32,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:55:32,102 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:55:32,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:55:32,103 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:55:32,104 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:55:32,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:55:32,105 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:55:32,105 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:55:32,105 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:55:32,106 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:55:32,106 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:55:32,107 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:55:32,107 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:55:32,107 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:55:32,108 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:55:32,108 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:55:32,109 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:55:32,109 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:32,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:55:32,110 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:55:32,110 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:55:32,111 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:55:32,111 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:55:32,112 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:55:32,112 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:55:32,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:55:32,113 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:55:32,113 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 242c9b24ea8c293cca4af0028144a97f9048375edcd4379fb21e62564563d3d5 [2021-10-28 08:55:32,445 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:55:32,488 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:55:32,493 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:55:32,494 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:55:32,496 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:55:32,497 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-28 08:55:32,597 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/data/ee927bd3f/969e24c3fe8c4db28792eb6a371c794f/FLAGe26374a89 [2021-10-28 08:55:33,378 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:55:33,379 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c [2021-10-28 08:55:33,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/data/ee927bd3f/969e24c3fe8c4db28792eb6a371c794f/FLAGe26374a89 [2021-10-28 08:55:33,610 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/data/ee927bd3f/969e24c3fe8c4db28792eb6a371c794f [2021-10-28 08:55:33,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:55:33,616 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:55:33,623 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:33,623 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:55:33,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:55:33,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:33" (1/1) ... [2021-10-28 08:55:33,636 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44a15736 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:33, skipping insertion in model container [2021-10-28 08:55:33,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:55:33" (1/1) ... [2021-10-28 08:55:33,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:55:33,729 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:55:34,082 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2021-10-28 08:55:34,177 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:34,190 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:55:34,270 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/sv-benchmarks/c/product-lines/minepump_spec2_product51.cil.c[9329,9342] [2021-10-28 08:55:34,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:55:34,387 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:55:34,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34 WrapperNode [2021-10-28 08:55:34,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:55:34,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:55:34,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:55:34,391 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:55:34,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,436 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,512 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:55:34,513 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:55:34,514 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:55:34,514 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:55:34,534 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,544 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,565 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,593 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:55:34,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:55:34,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:55:34,612 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:55:34,616 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (1/1) ... [2021-10-28 08:55:34,627 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:55:34,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:55:34,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:55:34,689 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:55:34,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:55:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:55:34,727 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:55:34,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:55:36,061 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:55:36,062 INFO L299 CfgBuilder]: Removed 162 assume(true) statements. [2021-10-28 08:55:36,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:36 BoogieIcfgContainer [2021-10-28 08:55:36,066 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:55:36,070 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:55:36,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:55:36,076 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:55:36,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:55:33" (1/3) ... [2021-10-28 08:55:36,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28059cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:55:36, skipping insertion in model container [2021-10-28 08:55:36,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:55:34" (2/3) ... [2021-10-28 08:55:36,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28059cbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:55:36, skipping insertion in model container [2021-10-28 08:55:36,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:36" (3/3) ... [2021-10-28 08:55:36,082 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product51.cil.c [2021-10-28 08:55:36,091 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:55:36,092 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-10-28 08:55:36,176 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:55:36,188 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, mAutomataTypeConcurrency=PETRI_NET, 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 [2021-10-28 08:55:36,189 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 08:55:36,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 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) [2021-10-28 08:55:36,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-10-28 08:55:36,227 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:36,228 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:36,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:36,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:36,239 INFO L85 PathProgramCache]: Analyzing trace with hash 815277316, now seen corresponding path program 1 times [2021-10-28 08:55:36,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:36,255 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823615251] [2021-10-28 08:55:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:36,256 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:36,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:36,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:36,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823615251] [2021-10-28 08:55:36,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823615251] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:36,641 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:36,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:36,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253948168] [2021-10-28 08:55:36,657 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:55:36,658 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:36,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:55:36,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:55:36,678 INFO L87 Difference]: Start difference. First operand has 123 states, 119 states have (on average 1.5714285714285714) internal successors, (187), 122 states have internal predecessors, (187), 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 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 08:55:36,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:36,718 INFO L93 Difference]: Finished difference Result 239 states and 366 transitions. [2021-10-28 08:55:36,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:55:36,720 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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 18 [2021-10-28 08:55:36,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:36,734 INFO L225 Difference]: With dead ends: 239 [2021-10-28 08:55:36,734 INFO L226 Difference]: Without dead ends: 119 [2021-10-28 08:55:36,739 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:55:36,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2021-10-28 08:55:36,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-28 08:55:36,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 116 states have (on average 1.5086206896551724) internal successors, (175), 118 states have internal predecessors, (175), 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) [2021-10-28 08:55:36,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 175 transitions. [2021-10-28 08:55:36,795 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 175 transitions. Word has length 18 [2021-10-28 08:55:36,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:36,796 INFO L470 AbstractCegarLoop]: Abstraction has 119 states and 175 transitions. [2021-10-28 08:55:36,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2021-10-28 08:55:36,797 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 175 transitions. [2021-10-28 08:55:36,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-10-28 08:55:36,799 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:36,799 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:36,800 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:55:36,800 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:36,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:36,802 INFO L85 PathProgramCache]: Analyzing trace with hash 596441347, now seen corresponding path program 1 times [2021-10-28 08:55:36,802 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:36,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503228522] [2021-10-28 08:55:36,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:36,803 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:36,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:36,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:36,923 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503228522] [2021-10-28 08:55:36,924 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503228522] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:36,925 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:36,925 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:55:36,925 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605111669] [2021-10-28 08:55:36,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:36,927 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:36,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:36,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:36,930 INFO L87 Difference]: Start difference. First operand 119 states and 175 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 08:55:36,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:36,946 INFO L93 Difference]: Finished difference Result 119 states and 175 transitions. [2021-10-28 08:55:36,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:36,947 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2021-10-28 08:55:36,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:36,949 INFO L225 Difference]: With dead ends: 119 [2021-10-28 08:55:36,952 INFO L226 Difference]: Without dead ends: 51 [2021-10-28 08:55:36,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:36,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2021-10-28 08:55:36,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2021-10-28 08:55:36,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.48) internal successors, (74), 50 states have internal predecessors, (74), 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) [2021-10-28 08:55:36,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 74 transitions. [2021-10-28 08:55:36,970 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 74 transitions. Word has length 19 [2021-10-28 08:55:36,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:36,971 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 74 transitions. [2021-10-28 08:55:36,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2021-10-28 08:55:36,972 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 74 transitions. [2021-10-28 08:55:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-10-28 08:55:36,975 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:36,975 INFO L513 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] [2021-10-28 08:55:36,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:55:36,976 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:36,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:36,984 INFO L85 PathProgramCache]: Analyzing trace with hash -781547841, now seen corresponding path program 1 times [2021-10-28 08:55:36,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:36,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584125895] [2021-10-28 08:55:36,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:36,985 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:37,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:37,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:37,111 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:37,112 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584125895] [2021-10-28 08:55:37,112 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584125895] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:37,112 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:37,112 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:37,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872933229] [2021-10-28 08:55:37,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:37,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:37,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:37,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:37,115 INFO L87 Difference]: Start difference. First operand 51 states and 74 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) [2021-10-28 08:55:37,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:37,139 INFO L93 Difference]: Finished difference Result 139 states and 208 transitions. [2021-10-28 08:55:37,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:37,140 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 [2021-10-28 08:55:37,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:37,142 INFO L225 Difference]: With dead ends: 139 [2021-10-28 08:55:37,142 INFO L226 Difference]: Without dead ends: 95 [2021-10-28 08:55:37,143 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:37,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2021-10-28 08:55:37,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 91. [2021-10-28 08:55:37,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.511111111111111) internal successors, (136), 90 states have internal predecessors, (136), 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) [2021-10-28 08:55:37,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 136 transitions. [2021-10-28 08:55:37,161 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 136 transitions. Word has length 24 [2021-10-28 08:55:37,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:37,161 INFO L470 AbstractCegarLoop]: Abstraction has 91 states and 136 transitions. [2021-10-28 08:55:37,162 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) [2021-10-28 08:55:37,162 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 136 transitions. [2021-10-28 08:55:37,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2021-10-28 08:55:37,164 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:37,165 INFO L513 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] [2021-10-28 08:55:37,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 08:55:37,165 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:37,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:37,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1063081859, now seen corresponding path program 1 times [2021-10-28 08:55:37,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:37,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810200750] [2021-10-28 08:55:37,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:37,167 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:37,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:37,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:37,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:37,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810200750] [2021-10-28 08:55:37,342 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810200750] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:37,342 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:37,342 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:37,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593664443] [2021-10-28 08:55:37,343 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:37,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:37,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:37,345 INFO L87 Difference]: Start difference. First operand 91 states and 136 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2021-10-28 08:55:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:37,404 INFO L93 Difference]: Finished difference Result 218 states and 331 transitions. [2021-10-28 08:55:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:37,406 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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 [2021-10-28 08:55:37,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:37,408 INFO L225 Difference]: With dead ends: 218 [2021-10-28 08:55:37,409 INFO L226 Difference]: Without dead ends: 134 [2021-10-28 08:55:37,413 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:37,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-10-28 08:55:37,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 132. [2021-10-28 08:55:37,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 1.4809160305343512) internal successors, (194), 131 states have internal predecessors, (194), 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) [2021-10-28 08:55:37,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 194 transitions. [2021-10-28 08:55:37,450 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 194 transitions. Word has length 26 [2021-10-28 08:55:37,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:37,451 INFO L470 AbstractCegarLoop]: Abstraction has 132 states and 194 transitions. [2021-10-28 08:55:37,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 2 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) [2021-10-28 08:55:37,452 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 194 transitions. [2021-10-28 08:55:37,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-10-28 08:55:37,455 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:37,456 INFO L513 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] [2021-10-28 08:55:37,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-28 08:55:37,457 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:37,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:37,461 INFO L85 PathProgramCache]: Analyzing trace with hash -460039864, now seen corresponding path program 1 times [2021-10-28 08:55:37,463 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:37,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115213503] [2021-10-28 08:55:37,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:37,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:37,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:37,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:37,583 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115213503] [2021-10-28 08:55:37,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2115213503] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:37,584 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:37,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:55:37,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619939853] [2021-10-28 08:55:37,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:55:37,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:37,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:55:37,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:37,587 INFO L87 Difference]: Start difference. First operand 132 states and 194 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 08:55:37,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:37,732 INFO L93 Difference]: Finished difference Result 692 states and 1031 transitions. [2021-10-28 08:55:37,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 08:55:37,733 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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 27 [2021-10-28 08:55:37,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:37,740 INFO L225 Difference]: With dead ends: 692 [2021-10-28 08:55:37,740 INFO L226 Difference]: Without dead ends: 567 [2021-10-28 08:55:37,744 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:55:37,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 567 states. [2021-10-28 08:55:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 567 to 243. [2021-10-28 08:55:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 242 states have (on average 1.4545454545454546) internal successors, (352), 242 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) [2021-10-28 08:55:37,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 352 transitions. [2021-10-28 08:55:37,813 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 352 transitions. Word has length 27 [2021-10-28 08:55:37,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:37,814 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 352 transitions. [2021-10-28 08:55:37,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 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) [2021-10-28 08:55:37,816 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 352 transitions. [2021-10-28 08:55:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-28 08:55:37,820 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:37,821 INFO L513 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] [2021-10-28 08:55:37,821 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-28 08:55:37,821 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:37,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:37,822 INFO L85 PathProgramCache]: Analyzing trace with hash -1894185024, now seen corresponding path program 1 times [2021-10-28 08:55:37,822 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:37,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951993152] [2021-10-28 08:55:37,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:37,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:37,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:37,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:37,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:37,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951993152] [2021-10-28 08:55:37,988 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951993152] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:37,989 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:37,989 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:55:37,990 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903178503] [2021-10-28 08:55:37,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:55:37,995 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:37,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:55:37,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:37,998 INFO L87 Difference]: Start difference. First operand 243 states and 352 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 08:55:38,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:38,211 INFO L93 Difference]: Finished difference Result 921 states and 1339 transitions. [2021-10-28 08:55:38,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:55:38,212 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 28 [2021-10-28 08:55:38,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:38,225 INFO L225 Difference]: With dead ends: 921 [2021-10-28 08:55:38,225 INFO L226 Difference]: Without dead ends: 685 [2021-10-28 08:55:38,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:55:38,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 685 states. [2021-10-28 08:55:38,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 685 to 241. [2021-10-28 08:55:38,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 240 states have (on average 1.4416666666666667) internal successors, (346), 240 states have internal predecessors, (346), 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) [2021-10-28 08:55:38,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 346 transitions. [2021-10-28 08:55:38,256 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 346 transitions. Word has length 28 [2021-10-28 08:55:38,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:38,256 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 346 transitions. [2021-10-28 08:55:38,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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) [2021-10-28 08:55:38,257 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 346 transitions. [2021-10-28 08:55:38,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 08:55:38,259 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:38,259 INFO L513 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] [2021-10-28 08:55:38,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-28 08:55:38,260 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:38,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:38,261 INFO L85 PathProgramCache]: Analyzing trace with hash -44877900, now seen corresponding path program 1 times [2021-10-28 08:55:38,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:38,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501487704] [2021-10-28 08:55:38,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:38,262 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:38,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:38,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:38,336 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:38,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501487704] [2021-10-28 08:55:38,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501487704] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:38,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:38,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:55:38,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315446525] [2021-10-28 08:55:38,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:55:38,338 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:38,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:55:38,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:38,340 INFO L87 Difference]: Start difference. First operand 241 states and 346 transitions. Second operand has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-28 08:55:38,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:38,439 INFO L93 Difference]: Finished difference Result 655 states and 925 transitions. [2021-10-28 08:55:38,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:55:38,440 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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 33 [2021-10-28 08:55:38,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:38,444 INFO L225 Difference]: With dead ends: 655 [2021-10-28 08:55:38,444 INFO L226 Difference]: Without dead ends: 421 [2021-10-28 08:55:38,445 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:55:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2021-10-28 08:55:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 265. [2021-10-28 08:55:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4015151515151516) internal successors, (370), 264 states have internal predecessors, (370), 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) [2021-10-28 08:55:38,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 370 transitions. [2021-10-28 08:55:38,474 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 370 transitions. Word has length 33 [2021-10-28 08:55:38,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:38,475 INFO L470 AbstractCegarLoop]: Abstraction has 265 states and 370 transitions. [2021-10-28 08:55:38,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.6) internal successors, (33), 5 states have internal predecessors, (33), 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) [2021-10-28 08:55:38,475 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 370 transitions. [2021-10-28 08:55:38,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 08:55:38,477 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:38,477 INFO L513 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] [2021-10-28 08:55:38,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-28 08:55:38,478 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:38,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:38,478 INFO L85 PathProgramCache]: Analyzing trace with hash 656186678, now seen corresponding path program 1 times [2021-10-28 08:55:38,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:38,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820773629] [2021-10-28 08:55:38,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:38,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:38,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:38,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:38,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:38,543 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820773629] [2021-10-28 08:55:38,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820773629] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:38,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:38,543 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:55:38,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301684904] [2021-10-28 08:55:38,544 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:55:38,545 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:38,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:55:38,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:55:38,546 INFO L87 Difference]: Start difference. First operand 265 states and 370 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-28 08:55:38,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:38,621 INFO L93 Difference]: Finished difference Result 643 states and 887 transitions. [2021-10-28 08:55:38,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:55:38,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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 33 [2021-10-28 08:55:38,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:38,626 INFO L225 Difference]: With dead ends: 643 [2021-10-28 08:55:38,626 INFO L226 Difference]: Without dead ends: 385 [2021-10-28 08:55:38,627 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:38,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-28 08:55:38,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 281. [2021-10-28 08:55:38,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 281 states, 280 states have (on average 1.3785714285714286) internal successors, (386), 280 states have internal predecessors, (386), 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) [2021-10-28 08:55:38,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 386 transitions. [2021-10-28 08:55:38,668 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 386 transitions. Word has length 33 [2021-10-28 08:55:38,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:38,669 INFO L470 AbstractCegarLoop]: Abstraction has 281 states and 386 transitions. [2021-10-28 08:55:38,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-28 08:55:38,669 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 386 transitions. [2021-10-28 08:55:38,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-10-28 08:55:38,671 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:38,671 INFO L513 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] [2021-10-28 08:55:38,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-28 08:55:38,671 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:38,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:38,672 INFO L85 PathProgramCache]: Analyzing trace with hash 69380664, now seen corresponding path program 1 times [2021-10-28 08:55:38,672 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:38,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685926062] [2021-10-28 08:55:38,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:38,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:38,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:38,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:38,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:38,730 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685926062] [2021-10-28 08:55:38,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685926062] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:38,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:38,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:55:38,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971878008] [2021-10-28 08:55:38,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:38,732 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:38,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:38,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:38,733 INFO L87 Difference]: Start difference. First operand 281 states and 386 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-28 08:55:38,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:38,796 INFO L93 Difference]: Finished difference Result 659 states and 899 transitions. [2021-10-28 08:55:38,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:38,797 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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 33 [2021-10-28 08:55:38,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:38,800 INFO L225 Difference]: With dead ends: 659 [2021-10-28 08:55:38,801 INFO L226 Difference]: Without dead ends: 385 [2021-10-28 08:55:38,802 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:38,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states. [2021-10-28 08:55:38,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2021-10-28 08:55:38,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 384 states have (on average 1.3333333333333333) internal successors, (512), 384 states have internal predecessors, (512), 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) [2021-10-28 08:55:38,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 512 transitions. [2021-10-28 08:55:38,846 INFO L78 Accepts]: Start accepts. Automaton has 385 states and 512 transitions. Word has length 33 [2021-10-28 08:55:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:38,847 INFO L470 AbstractCegarLoop]: Abstraction has 385 states and 512 transitions. [2021-10-28 08:55:38,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 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) [2021-10-28 08:55:38,847 INFO L276 IsEmpty]: Start isEmpty. Operand 385 states and 512 transitions. [2021-10-28 08:55:38,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-10-28 08:55:38,849 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:38,849 INFO L513 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] [2021-10-28 08:55:38,849 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-28 08:55:38,850 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:38,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:38,850 INFO L85 PathProgramCache]: Analyzing trace with hash 1964012792, now seen corresponding path program 1 times [2021-10-28 08:55:38,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:38,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686001337] [2021-10-28 08:55:38,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:38,851 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:38,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:38,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:38,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:38,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686001337] [2021-10-28 08:55:38,910 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686001337] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:38,911 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:38,911 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:55:38,911 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904729732] [2021-10-28 08:55:38,912 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:38,912 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:38,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:38,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:38,913 INFO L87 Difference]: Start difference. First operand 385 states and 512 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) 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) [2021-10-28 08:55:39,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:39,001 INFO L93 Difference]: Finished difference Result 595 states and 799 transitions. [2021-10-28 08:55:39,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:39,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) 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 [2021-10-28 08:55:39,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:39,007 INFO L225 Difference]: With dead ends: 595 [2021-10-28 08:55:39,007 INFO L226 Difference]: Without dead ends: 593 [2021-10-28 08:55:39,008 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:39,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 593 states. [2021-10-28 08:55:39,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 593 to 472. [2021-10-28 08:55:39,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 1.3630573248407643) internal successors, (642), 471 states have internal predecessors, (642), 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) [2021-10-28 08:55:39,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 642 transitions. [2021-10-28 08:55:39,061 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 642 transitions. Word has length 34 [2021-10-28 08:55:39,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:39,061 INFO L470 AbstractCegarLoop]: Abstraction has 472 states and 642 transitions. [2021-10-28 08:55:39,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) 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) [2021-10-28 08:55:39,062 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 642 transitions. [2021-10-28 08:55:39,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-10-28 08:55:39,064 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:39,064 INFO L513 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] [2021-10-28 08:55:39,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-28 08:55:39,065 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:39,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:39,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1050282420, now seen corresponding path program 1 times [2021-10-28 08:55:39,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:39,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079388169] [2021-10-28 08:55:39,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:39,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:39,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-28 08:55:39,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:39,121 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079388169] [2021-10-28 08:55:39,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079388169] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:39,121 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:39,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:55:39,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762172561] [2021-10-28 08:55:39,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:39,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:39,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:39,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:39,124 INFO L87 Difference]: Start difference. First operand 472 states and 642 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-28 08:55:39,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:39,223 INFO L93 Difference]: Finished difference Result 564 states and 763 transitions. [2021-10-28 08:55:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:39,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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 [2021-10-28 08:55:39,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:39,226 INFO L225 Difference]: With dead ends: 564 [2021-10-28 08:55:39,226 INFO L226 Difference]: Without dead ends: 234 [2021-10-28 08:55:39,227 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:55:39,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2021-10-28 08:55:39,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2021-10-28 08:55:39,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 1.3133047210300428) internal successors, (306), 233 states have internal predecessors, (306), 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) [2021-10-28 08:55:39,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 306 transitions. [2021-10-28 08:55:39,256 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 306 transitions. Word has length 54 [2021-10-28 08:55:39,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:39,256 INFO L470 AbstractCegarLoop]: Abstraction has 234 states and 306 transitions. [2021-10-28 08:55:39,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2021-10-28 08:55:39,257 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 306 transitions. [2021-10-28 08:55:39,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 08:55:39,258 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:39,258 INFO L513 BasicCegarLoop]: trace histogram [2, 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, 1, 1] [2021-10-28 08:55:39,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-28 08:55:39,259 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:39,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:39,260 INFO L85 PathProgramCache]: Analyzing trace with hash -2090460060, now seen corresponding path program 1 times [2021-10-28 08:55:39,260 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:39,260 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538761801] [2021-10-28 08:55:39,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:39,261 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:39,421 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:39,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:39,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538761801] [2021-10-28 08:55:39,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538761801] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:39,423 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:39,423 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 08:55:39,423 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725348784] [2021-10-28 08:55:39,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 08:55:39,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:39,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 08:55:39,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 08:55:39,425 INFO L87 Difference]: Start difference. First operand 234 states and 306 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-10-28 08:55:39,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:39,874 INFO L93 Difference]: Finished difference Result 1269 states and 1689 transitions. [2021-10-28 08:55:39,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-28 08:55:39,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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 58 [2021-10-28 08:55:39,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:39,884 INFO L225 Difference]: With dead ends: 1269 [2021-10-28 08:55:39,884 INFO L226 Difference]: Without dead ends: 1092 [2021-10-28 08:55:39,886 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-10-28 08:55:39,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2021-10-28 08:55:39,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 489. [2021-10-28 08:55:39,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 1.3012295081967213) internal successors, (635), 488 states have internal predecessors, (635), 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) [2021-10-28 08:55:39,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 635 transitions. [2021-10-28 08:55:39,968 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 635 transitions. Word has length 58 [2021-10-28 08:55:39,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:39,972 INFO L470 AbstractCegarLoop]: Abstraction has 489 states and 635 transitions. [2021-10-28 08:55:39,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 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) [2021-10-28 08:55:39,973 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 635 transitions. [2021-10-28 08:55:39,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 08:55:39,974 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:39,974 INFO L513 BasicCegarLoop]: trace histogram [2, 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, 1, 1] [2021-10-28 08:55:39,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-28 08:55:39,975 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:39,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:39,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1832294622, now seen corresponding path program 1 times [2021-10-28 08:55:39,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:39,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686088663] [2021-10-28 08:55:39,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:39,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:40,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:40,078 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-10-28 08:55:40,078 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:40,078 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686088663] [2021-10-28 08:55:40,079 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686088663] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:40,079 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:55:40,079 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 08:55:40,079 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542374403] [2021-10-28 08:55:40,080 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-28 08:55:40,080 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:40,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 08:55:40,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:40,081 INFO L87 Difference]: Start difference. First operand 489 states and 635 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2021-10-28 08:55:40,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:40,202 INFO L93 Difference]: Finished difference Result 912 states and 1172 transitions. [2021-10-28 08:55:40,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 08:55:40,203 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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 58 [2021-10-28 08:55:40,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:40,207 INFO L225 Difference]: With dead ends: 912 [2021-10-28 08:55:40,207 INFO L226 Difference]: Without dead ends: 480 [2021-10-28 08:55:40,208 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:55:40,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2021-10-28 08:55:40,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 246. [2021-10-28 08:55:40,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 245 states have (on average 1.2326530612244897) internal successors, (302), 245 states have internal predecessors, (302), 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) [2021-10-28 08:55:40,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 302 transitions. [2021-10-28 08:55:40,270 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 302 transitions. Word has length 58 [2021-10-28 08:55:40,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:40,270 INFO L470 AbstractCegarLoop]: Abstraction has 246 states and 302 transitions. [2021-10-28 08:55:40,271 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 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) [2021-10-28 08:55:40,271 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 302 transitions. [2021-10-28 08:55:40,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-10-28 08:55:40,272 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:55:40,273 INFO L513 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:40,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-28 08:55:40,273 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:55:40,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:55:40,274 INFO L85 PathProgramCache]: Analyzing trace with hash 1973254398, now seen corresponding path program 1 times [2021-10-28 08:55:40,274 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:55:40,274 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66892353] [2021-10-28 08:55:40,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:40,275 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:55:40,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:40,340 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 15 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:40,341 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:55:40,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66892353] [2021-10-28 08:55:40,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66892353] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:55:40,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375957063] [2021-10-28 08:55:40,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:55:40,342 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:55:40,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:55:40,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:55:40,352 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:55:40,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:55:40,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 2 conjunts are in the unsatisfiable core [2021-10-28 08:55:40,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:55:40,823 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:55:40,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375957063] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:55:40,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:55:40,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-10-28 08:55:40,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497864096] [2021-10-28 08:55:40,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:55:40,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:55:40,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:55:40,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:40,826 INFO L87 Difference]: Start difference. First operand 246 states and 302 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-10-28 08:55:40,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:55:40,987 INFO L93 Difference]: Finished difference Result 416 states and 515 transitions. [2021-10-28 08:55:40,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:55:40,988 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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 58 [2021-10-28 08:55:40,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:55:40,988 INFO L225 Difference]: With dead ends: 416 [2021-10-28 08:55:40,988 INFO L226 Difference]: Without dead ends: 0 [2021-10-28 08:55:40,989 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-28 08:55:40,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-28 08:55:40,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-28 08:55:40,990 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) [2021-10-28 08:55:40,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-28 08:55:40,991 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 58 [2021-10-28 08:55:40,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:55:40,991 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-28 08:55:40,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 states have internal predecessors, (58), 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) [2021-10-28 08:55:40,991 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-28 08:55:40,992 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-28 08:55:40,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:55:40,995 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:55:40,996 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:55:41,046 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:55:41,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-10-28 08:55:41,214 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-10-28 08:55:41,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,227 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,229 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,230 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,232 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,350 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,353 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,361 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,362 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,363 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,364 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,365 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,368 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,370 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,372 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,373 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,408 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,409 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,410 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,411 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:41,819 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,292 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,294 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,687 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,689 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,814 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,817 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:42,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,030 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,031 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,032 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,255 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,432 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:43,737 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-10-28 08:55:48,958 INFO L857 garLoopResultBuilder]: For program point L299-11(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,959 INFO L857 garLoopResultBuilder]: For program point L299-12(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,959 INFO L857 garLoopResultBuilder]: For program point L299-14(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,959 INFO L857 garLoopResultBuilder]: For program point L299-15(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,959 INFO L857 garLoopResultBuilder]: For program point L299-17(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,959 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2021-10-28 08:55:48,959 INFO L857 garLoopResultBuilder]: For program point L366(lines 366 376) no Hoare annotation was computed. [2021-10-28 08:55:48,960 INFO L857 garLoopResultBuilder]: For program point L366-2(lines 366 376) no Hoare annotation was computed. [2021-10-28 08:55:48,960 INFO L857 garLoopResultBuilder]: For program point L366-4(lines 366 376) no Hoare annotation was computed. [2021-10-28 08:55:48,960 INFO L857 garLoopResultBuilder]: For program point L201(lines 201 209) no Hoare annotation was computed. [2021-10-28 08:55:48,960 INFO L857 garLoopResultBuilder]: For program point L201-1(lines 201 209) no Hoare annotation was computed. [2021-10-28 08:55:48,960 INFO L857 garLoopResultBuilder]: For program point L201-2(lines 201 209) no Hoare annotation was computed. [2021-10-28 08:55:48,960 INFO L853 garLoopResultBuilder]: At program point L466(lines 461 469) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse2) (and .cse3 .cse0 (= |ULTIMATE.start_isMethaneLevelCritical_#res| 0) (= ~methaneLevelCritical~0 0) .cse4 .cse2))) [2021-10-28 08:55:48,961 INFO L853 garLoopResultBuilder]: At program point L466-1(lines 461 469) the Hoare annotation is: false [2021-10-28 08:55:48,961 INFO L853 garLoopResultBuilder]: At program point L466-2(lines 461 469) the Hoare annotation is: false [2021-10-28 08:55:48,961 INFO L857 garLoopResultBuilder]: For program point L367(lines 367 373) no Hoare annotation was computed. [2021-10-28 08:55:48,961 INFO L857 garLoopResultBuilder]: For program point L367-2(lines 367 373) no Hoare annotation was computed. [2021-10-28 08:55:48,961 INFO L857 garLoopResultBuilder]: For program point L367-4(lines 367 373) no Hoare annotation was computed. [2021-10-28 08:55:48,961 INFO L857 garLoopResultBuilder]: For program point L171(lines 171 188) no Hoare annotation was computed. [2021-10-28 08:55:48,961 INFO L857 garLoopResultBuilder]: For program point L171-1(lines 171 188) no Hoare annotation was computed. [2021-10-28 08:55:48,961 INFO L857 garLoopResultBuilder]: For program point L171-2(lines 171 188) no Hoare annotation was computed. [2021-10-28 08:55:48,962 INFO L857 garLoopResultBuilder]: For program point L171-3(lines 171 188) no Hoare annotation was computed. [2021-10-28 08:55:48,962 INFO L857 garLoopResultBuilder]: For program point L171-4(lines 171 188) no Hoare annotation was computed. [2021-10-28 08:55:48,962 INFO L857 garLoopResultBuilder]: For program point L171-5(lines 171 188) no Hoare annotation was computed. [2021-10-28 08:55:48,962 INFO L853 garLoopResultBuilder]: At program point L139(lines 138 157) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 ~waterLevel~0))) (or (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3) (and .cse0 .cse1 .cse4 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse0 .cse1 .cse4 .cse2 (= ~waterLevel~0 1)) (and (<= 1 ~pumpRunning~0) .cse0 .cse2 .cse3))) [2021-10-28 08:55:48,962 INFO L857 garLoopResultBuilder]: For program point L139-1(lines 139 145) no Hoare annotation was computed. [2021-10-28 08:55:48,962 INFO L853 garLoopResultBuilder]: At program point L139-2(lines 138 157) the Hoare annotation is: false [2021-10-28 08:55:48,962 INFO L853 garLoopResultBuilder]: At program point L139-3(lines 138 157) the Hoare annotation is: false [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L305(lines 290 308) the Hoare annotation is: false [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L305-1(lines 290 308) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse0 (= ULTIMATE.start_isHighWaterLevel_~tmp___0~1 0) .cse1 (= |ULTIMATE.start_isHighWaterLevel_#res| 0) .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L305-2(lines 290 308) the Hoare annotation is: false [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L305-3(lines 290 308) the Hoare annotation is: false [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L305-4(lines 290 308) the Hoare annotation is: false [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L305-5(lines 290 308) the Hoare annotation is: false [2021-10-28 08:55:48,963 INFO L853 garLoopResultBuilder]: At program point L537-2(lines 537 551) the Hoare annotation is: false [2021-10-28 08:55:48,964 INFO L857 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2021-10-28 08:55:48,964 INFO L853 garLoopResultBuilder]: At program point L75-1(lines 75 81) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-10-28 08:55:48,964 INFO L857 garLoopResultBuilder]: For program point L538(line 538) no Hoare annotation was computed. [2021-10-28 08:55:48,964 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2021-10-28 08:55:48,964 INFO L857 garLoopResultBuilder]: For program point L175(lines 175 183) no Hoare annotation was computed. [2021-10-28 08:55:48,964 INFO L857 garLoopResultBuilder]: For program point L175-1(lines 175 183) no Hoare annotation was computed. [2021-10-28 08:55:48,964 INFO L857 garLoopResultBuilder]: For program point L175-2(lines 175 183) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L175-3(lines 175 183) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L175-4(lines 175 183) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L175-5(lines 175 183) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L506(lines 506 512) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L506-1(lines 506 512) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L506-2(lines 506 512) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L506-3(lines 506 512) no Hoare annotation was computed. [2021-10-28 08:55:48,965 INFO L857 garLoopResultBuilder]: For program point L506-4(lines 506 512) no Hoare annotation was computed. [2021-10-28 08:55:48,966 INFO L857 garLoopResultBuilder]: For program point L506-5(lines 506 512) no Hoare annotation was computed. [2021-10-28 08:55:48,966 INFO L857 garLoopResultBuilder]: For program point L441(lines 441 445) no Hoare annotation was computed. [2021-10-28 08:55:48,966 INFO L857 garLoopResultBuilder]: For program point L541(lines 541 545) no Hoare annotation was computed. [2021-10-28 08:55:48,966 INFO L857 garLoopResultBuilder]: For program point L541-1(lines 139 145) no Hoare annotation was computed. [2021-10-28 08:55:48,966 INFO L853 garLoopResultBuilder]: At program point L409(lines 1 996) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-28 08:55:48,966 INFO L853 garLoopResultBuilder]: At program point L146(lines 146 152) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 1 ~pumpRunning~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse4 (<= 2 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= 0 ~systemActive~0)) (and .cse3 .cse0 (= ~methAndRunningLastTime~0 0) .cse4 .cse2) (and .cse3 .cse0 (= ~methaneLevelCritical~0 0) .cse4 .cse2))) [2021-10-28 08:55:48,966 INFO L853 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2021-10-28 08:55:48,967 INFO L853 garLoopResultBuilder]: At program point L146-1(lines 146 152) the Hoare annotation is: false [2021-10-28 08:55:48,967 INFO L853 garLoopResultBuilder]: At program point L146-2(lines 146 152) the Hoare annotation is: false [2021-10-28 08:55:48,967 INFO L857 garLoopResultBuilder]: For program point L609(lines 609 616) no Hoare annotation was computed. [2021-10-28 08:55:48,967 INFO L860 garLoopResultBuilder]: At program point L609-1(lines 609 616) the Hoare annotation is: true [2021-10-28 08:55:48,967 INFO L853 garLoopResultBuilder]: At program point L511(lines 502 515) the Hoare annotation is: false [2021-10-28 08:55:48,967 INFO L853 garLoopResultBuilder]: At program point L511-1(lines 502 515) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 2 ~waterLevel~0)) (.cse3 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 .cse3) (and .cse0 .cse1 (= |ULTIMATE.start_isHighWaterSensorDry_#res| 1) .cse3 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (= ~methaneLevelCritical~0 0) .cse2 .cse3))) [2021-10-28 08:55:48,967 INFO L853 garLoopResultBuilder]: At program point L511-2(lines 502 515) the Hoare annotation is: false [2021-10-28 08:55:48,968 INFO L853 garLoopResultBuilder]: At program point L511-3(lines 502 515) the Hoare annotation is: false [2021-10-28 08:55:48,970 INFO L853 garLoopResultBuilder]: At program point L511-4(lines 502 515) the Hoare annotation is: false [2021-10-28 08:55:48,970 INFO L853 garLoopResultBuilder]: At program point L511-5(lines 502 515) the Hoare annotation is: false [2021-10-28 08:55:48,970 INFO L853 garLoopResultBuilder]: At program point L250(lines 245 253) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |ULTIMATE.start_isPumpRunning_#res| 0))) (or (and .cse0 .cse1 .cse2 .cse3 (<= 1 ~waterLevel~0)) (and (<= 1 ~pumpRunning~0) .cse0 (= ~methAndRunningLastTime~0 0) (<= 2 ~waterLevel~0) .cse3) (and .cse0 .cse1 .cse2 (= 0 ~systemActive~0)))) [2021-10-28 08:55:48,970 INFO L853 garLoopResultBuilder]: At program point L250-1(lines 245 253) the Hoare annotation is: false [2021-10-28 08:55:48,971 INFO L853 garLoopResultBuilder]: At program point L250-2(lines 245 253) the Hoare annotation is: false [2021-10-28 08:55:48,971 INFO L857 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2021-10-28 08:55:48,971 INFO L853 garLoopResultBuilder]: At program point L85-1(lines 85 91) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-10-28 08:55:48,971 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-10-28 08:55:48,971 INFO L853 garLoopResultBuilder]: At program point L417(lines 412 420) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-28 08:55:48,972 INFO L853 garLoopResultBuilder]: At program point L351(lines 346 353) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-28 08:55:48,972 INFO L857 garLoopResultBuilder]: For program point L318(lines 318 322) no Hoare annotation was computed. [2021-10-28 08:55:48,972 INFO L857 garLoopResultBuilder]: For program point L318-2(lines 318 322) no Hoare annotation was computed. [2021-10-28 08:55:48,972 INFO L857 garLoopResultBuilder]: For program point L318-3(lines 318 322) no Hoare annotation was computed. [2021-10-28 08:55:48,972 INFO L857 garLoopResultBuilder]: For program point L318-5(lines 318 322) no Hoare annotation was computed. [2021-10-28 08:55:48,973 INFO L857 garLoopResultBuilder]: For program point L318-6(lines 318 322) no Hoare annotation was computed. [2021-10-28 08:55:48,973 INFO L857 garLoopResultBuilder]: For program point L318-8(lines 318 322) no Hoare annotation was computed. [2021-10-28 08:55:48,973 INFO L860 garLoopResultBuilder]: At program point L618(lines 599 621) the Hoare annotation is: true [2021-10-28 08:55:48,973 INFO L853 garLoopResultBuilder]: At program point L585(lines 581 587) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-10-28 08:55:48,973 INFO L857 garLoopResultBuilder]: For program point L453(lines 453 457) no Hoare annotation was computed. [2021-10-28 08:55:48,974 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-10-28 08:55:48,974 INFO L853 garLoopResultBuilder]: At program point L521(lines 516 524) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0) (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|)) [2021-10-28 08:55:48,974 INFO L853 garLoopResultBuilder]: At program point L521-1(lines 516 524) the Hoare annotation is: false [2021-10-28 08:55:48,974 INFO L853 garLoopResultBuilder]: At program point L521-2(lines 516 524) the Hoare annotation is: false [2021-10-28 08:55:48,975 INFO L853 garLoopResultBuilder]: At program point L324(lines 309 327) the Hoare annotation is: (and (<= 1 ~pumpRunning~0) (= |ULTIMATE.start_isLowWaterLevel_#res| 1) (= ULTIMATE.start_test_~splverifierCounter~0 0) (= 1 ~systemActive~0) (= ULTIMATE.start_isLowWaterLevel_~tmp___0~2 1) (< 0 (+ ULTIMATE.start_isLowWaterLevel_~tmp~4 1)) (<= 1 ~waterLevel~0) (<= |ULTIMATE.start_isLowWaterSensorDry_#res| 0) (<= 0 |ULTIMATE.start_isLowWaterSensorDry_#res|) (<= ULTIMATE.start_isLowWaterLevel_~tmp~4 0)) [2021-10-28 08:55:48,975 INFO L853 garLoopResultBuilder]: At program point L324-1(lines 309 327) the Hoare annotation is: false [2021-10-28 08:55:48,975 INFO L853 garLoopResultBuilder]: At program point L324-2(lines 309 327) the Hoare annotation is: false [2021-10-28 08:55:48,975 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-10-28 08:55:48,975 INFO L857 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2021-10-28 08:55:48,975 INFO L857 garLoopResultBuilder]: For program point L362(lines 362 379) no Hoare annotation was computed. [2021-10-28 08:55:48,976 INFO L853 garLoopResultBuilder]: At program point L362-1(lines 1 996) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~methAndRunningLastTime~0 0))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 .cse3 .cse1 (<= 1 ~waterLevel~0)) (and .cse0 .cse2 .cse3 (= 0 ~systemActive~0)))) [2021-10-28 08:55:48,976 INFO L857 garLoopResultBuilder]: For program point L362-2(lines 362 379) no Hoare annotation was computed. [2021-10-28 08:55:48,976 INFO L853 garLoopResultBuilder]: At program point L362-3(lines 1 996) the Hoare annotation is: false [2021-10-28 08:55:48,976 INFO L857 garLoopResultBuilder]: For program point L362-4(lines 362 379) no Hoare annotation was computed. [2021-10-28 08:55:48,976 INFO L857 garLoopResultBuilder]: For program point L197(lines 197 214) no Hoare annotation was computed. [2021-10-28 08:55:48,977 INFO L853 garLoopResultBuilder]: At program point L362-5(lines 1 996) the Hoare annotation is: false [2021-10-28 08:55:48,977 INFO L857 garLoopResultBuilder]: For program point L197-1(lines 197 214) no Hoare annotation was computed. [2021-10-28 08:55:48,977 INFO L857 garLoopResultBuilder]: For program point L197-2(lines 197 214) no Hoare annotation was computed. [2021-10-28 08:55:48,977 INFO L857 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-10-28 08:55:48,977 INFO L857 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 627) no Hoare annotation was computed. [2021-10-28 08:55:48,978 INFO L857 garLoopResultBuilder]: For program point L627(line 627) no Hoare annotation was computed. [2021-10-28 08:55:48,978 INFO L857 garLoopResultBuilder]: For program point L627-1(line 627) no Hoare annotation was computed. [2021-10-28 08:55:48,978 INFO L857 garLoopResultBuilder]: For program point L627-2(line 627) no Hoare annotation was computed. [2021-10-28 08:55:48,978 INFO L857 garLoopResultBuilder]: For program point L429(lines 429 433) no Hoare annotation was computed. [2021-10-28 08:55:48,978 INFO L857 garLoopResultBuilder]: For program point L429-3(lines 429 433) no Hoare annotation was computed. [2021-10-28 08:55:48,979 INFO L857 garLoopResultBuilder]: For program point L429-6(lines 429 433) no Hoare annotation was computed. [2021-10-28 08:55:48,979 INFO L857 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2021-10-28 08:55:48,979 INFO L857 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2021-10-28 08:55:48,979 INFO L857 garLoopResultBuilder]: For program point L332(lines 332 338) no Hoare annotation was computed. [2021-10-28 08:55:48,979 INFO L853 garLoopResultBuilder]: At program point L332-1(lines 332 338) the Hoare annotation is: (and (= ULTIMATE.start_test_~splverifierCounter~0 0) (= ~pumpRunning~0 0)) [2021-10-28 08:55:48,979 INFO L857 garLoopResultBuilder]: For program point L299(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,980 INFO L857 garLoopResultBuilder]: For program point L299-2(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,980 INFO L857 garLoopResultBuilder]: For program point L299-3(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,980 INFO L857 garLoopResultBuilder]: For program point L299-5(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,980 INFO L857 garLoopResultBuilder]: For program point L101(lines 101 107) no Hoare annotation was computed. [2021-10-28 08:55:48,980 INFO L857 garLoopResultBuilder]: For program point L299-6(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,981 INFO L853 garLoopResultBuilder]: At program point L101-1(lines 139 145) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_test_~splverifierCounter~0 0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (= 0 ~systemActive~0)) (and (<= 1 ~pumpRunning~0) .cse0 (<= 2 ~waterLevel~0) .cse2) (and .cse0 .cse1 (= ~methAndRunningLastTime~0 0) .cse2 (<= 1 ~waterLevel~0)))) [2021-10-28 08:55:48,981 INFO L857 garLoopResultBuilder]: For program point L299-8(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,981 INFO L857 garLoopResultBuilder]: For program point L299-9(lines 299 303) no Hoare annotation was computed. [2021-10-28 08:55:48,985 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:55:48,987 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:55:49,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:55:49 BoogieIcfgContainer [2021-10-28 08:55:49,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:55:49,023 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:55:49,023 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:55:49,023 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:55:49,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:55:36" (3/4) ... [2021-10-28 08:55:49,028 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:55:49,051 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2021-10-28 08:55:49,053 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2021-10-28 08:55:49,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2021-10-28 08:55:49,056 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-10-28 08:55:49,057 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 08:55:49,058 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:55:49,060 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:55:49,094 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-10-28 08:55:49,095 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && \result <= 0) && 0 <= \result [2021-10-28 08:55:49,096 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-10-28 08:55:49,096 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive) [2021-10-28 08:55:49,097 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning && \result == 1) && splverifierCounter == 0) && 1 == systemActive) && tmp___0 == 1) && 0 < tmp + 1) && 1 <= waterLevel) && \result <= 0) && 0 <= \result) && tmp <= 0 [2021-10-28 08:55:49,098 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || (((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) [2021-10-28 08:55:49,194 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:55:49,194 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:55:49,197 INFO L168 Benchmark]: Toolchain (without parser) took 15579.43 ms. Allocated memory was 88.1 MB in the beginning and 176.2 MB in the end (delta: 88.1 MB). Free memory was 50.9 MB in the beginning and 119.7 MB in the end (delta: -68.7 MB). Peak memory consumption was 18.0 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,197 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:55:49,198 INFO L168 Benchmark]: CACSL2BoogieTranslator took 766.05 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 50.7 MB in the beginning and 90.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,199 INFO L168 Benchmark]: Boogie Procedure Inliner took 122.36 ms. Allocated memory is still 121.6 MB. Free memory was 90.2 MB in the beginning and 86.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,199 INFO L168 Benchmark]: Boogie Preprocessor took 96.99 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 83.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,200 INFO L168 Benchmark]: RCFGBuilder took 1454.70 ms. Allocated memory is still 121.6 MB. Free memory was 83.9 MB in the beginning and 92.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,200 INFO L168 Benchmark]: TraceAbstraction took 12952.12 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 92.6 MB in the beginning and 130.2 MB in the end (delta: -37.5 MB). Peak memory consumption was 102.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,201 INFO L168 Benchmark]: Witness Printer took 171.38 ms. Allocated memory is still 176.2 MB. Free memory was 130.2 MB in the beginning and 119.7 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:55:49,203 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 88.1 MB. Free memory is still 68.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 766.05 ms. Allocated memory was 88.1 MB in the beginning and 121.6 MB in the end (delta: 33.6 MB). Free memory was 50.7 MB in the beginning and 90.2 MB in the end (delta: -39.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 122.36 ms. Allocated memory is still 121.6 MB. Free memory was 90.2 MB in the beginning and 86.5 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 96.99 ms. Allocated memory is still 121.6 MB. Free memory was 86.5 MB in the beginning and 83.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1454.70 ms. Allocated memory is still 121.6 MB. Free memory was 83.9 MB in the beginning and 92.6 MB in the end (delta: -8.7 MB). Peak memory consumption was 46.1 MB. Max. memory is 16.1 GB. * TraceAbstraction took 12952.12 ms. Allocated memory was 121.6 MB in the beginning and 176.2 MB in the end (delta: 54.5 MB). Free memory was 92.6 MB in the beginning and 130.2 MB in the end (delta: -37.5 MB). Peak memory consumption was 102.3 MB. Max. memory is 16.1 GB. * Witness Printer took 171.38 ms. Allocated memory is still 176.2 MB. Free memory was 130.2 MB in the beginning and 119.7 MB in the end (delta: 10.5 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, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 627]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 627]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 627]: 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, 123 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 14, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 1395 SDtfs, 1474 SDslu, 2073 SDs, 0 SdLazy, 242 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 135 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=12, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 14 MinimizatonAttempts, 1992 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 45 LocationsWithAnnotation, 45 PreInvPairs, 171 NumberOfFragments, 654 HoareAnnotationTreeSize, 45 FomulaSimplifications, 314637 FormulaSimplificationTreeSizeReduction, 2.5s HoareSimplificationTime, 45 FomulaSimplificationsInter, 68253 FormulaSimplificationTreeSizeReductionInter, 5.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 561 NumberOfCodeBlocks, 561 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 546 ConstructedInterpolants, 0 QuantifiedInterpolants, 997 SizeOfPredicates, 0 NumberOfNonLiveVariables, 444 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 15 InterpolantComputations, 14 PerfectInterpolantSequences, 89/98 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: 346]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 332]: Loop Invariant Derived loop invariant: splverifierCounter == 0 && pumpRunning == 0 - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 412]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 609]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 599]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning && \result == 1) && splverifierCounter == 0) && 1 == systemActive) && tmp___0 == 1) && 0 < tmp + 1) && 1 <= waterLevel) && \result <= 0) && 0 <= \result) && tmp <= 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: (((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive) || (((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((splverifierCounter == 0 && pumpRunning == 0) && \result == 0) && 0 == systemActive) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 309]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || (((((splverifierCounter == 0 && tmp___0 == 0) && pumpRunning == 0) && \result == 0) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 516]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) && \result <= 0) && 0 <= \result - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 245]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 75]: Loop Invariant Derived loop invariant: ((((1 <= pumpRunning && splverifierCounter == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && 1 <= waterLevel)) || (((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 0 == systemActive) - InvariantResult [Line: 461]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && 1 == systemActive) && 1 <= waterLevel) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((1 <= pumpRunning && splverifierCounter == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || (((((1 <= pumpRunning && splverifierCounter == 0) && \result == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) - InvariantResult [Line: 290]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: (((((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 1 == systemActive) && 1 <= waterLevel) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive)) || ((splverifierCounter == 0 && pumpRunning == 0) && 0 == systemActive)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 1 == systemActive) && waterLevel == 1)) || (((1 <= pumpRunning && splverifierCounter == 0) && 1 == systemActive) && 1 <= waterLevel) - InvariantResult [Line: 537]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 502]: Loop Invariant Derived loop invariant: (((((splverifierCounter == 0 && pumpRunning == 0) && methAndRunningLastTime == 0) && 2 <= waterLevel) && 1 == systemActive) || ((((splverifierCounter == 0 && pumpRunning == 0) && \result == 1) && 1 == systemActive) && 1 <= waterLevel)) || ((((splverifierCounter == 0 && pumpRunning == 0) && methaneLevelCritical == 0) && 2 <= waterLevel) && 1 == systemActive) RESULT: Ultimate proved your program to be correct! [2021-10-28 08:55:49,302 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_672a9ee3-f5cb-4d3b-9692-6206b516c760/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...