./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF --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 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 06:10:33,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 06:10:33,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 06:10:33,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 06:10:33,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 06:10:33,300 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 06:10:33,301 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 06:10:33,303 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 06:10:33,306 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 06:10:33,307 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 06:10:33,308 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 06:10:33,309 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 06:10:33,310 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 06:10:33,311 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 06:10:33,312 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 06:10:33,314 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 06:10:33,315 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 06:10:33,316 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 06:10:33,318 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 06:10:33,320 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 06:10:33,322 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 06:10:33,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 06:10:33,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 06:10:33,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 06:10:33,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 06:10:33,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 06:10:33,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 06:10:33,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 06:10:33,333 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 06:10:33,334 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 06:10:33,334 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 06:10:33,335 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 06:10:33,347 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 06:10:33,347 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 06:10:33,349 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 06:10:33,349 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 06:10:33,349 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 06:10:33,350 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 06:10:33,350 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 06:10:33,351 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 06:10:33,351 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 06:10:33,352 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-20 06:10:33,375 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 06:10:33,375 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 06:10:33,376 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 06:10:33,376 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 06:10:33,376 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-20 06:10:33,377 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-20 06:10:33,377 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 06:10:33,377 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 06:10:33,378 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 06:10:33,378 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 06:10:33,378 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 06:10:33,378 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 06:10:33,378 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 06:10:33,379 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 06:10:33,379 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-20 06:10:33,379 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-20 06:10:33,379 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-20 06:10:33,379 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 06:10:33,379 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 06:10:33,380 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 06:10:33,380 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-20 06:10:33,380 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 06:10:33,380 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 06:10:33,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-20 06:10:33,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:10:33,381 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 06:10:33,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-20 06:10:33,381 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-20 06:10:33,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 06:10:33,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-20 06:10:33,382 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-20 06:10:33,382 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-20 06:10:33,382 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-20 06:10:33,382 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 06:10:33,382 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_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3f23173af8ffbfd6ca2d826b937f078be2c112e64596739bc9740bb061a5d2 [2021-11-20 06:10:33,635 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 06:10:33,670 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 06:10:33,672 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 06:10:33,674 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 06:10:33,674 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 06:10:33,676 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2021-11-20 06:10:33,768 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/data/0ca2dd791/195f516819b34dd196068cf6408d7b1a/FLAG0987a6253 [2021-11-20 06:10:34,265 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 06:10:34,267 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c [2021-11-20 06:10:34,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/data/0ca2dd791/195f516819b34dd196068cf6408d7b1a/FLAG0987a6253 [2021-11-20 06:10:34,770 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/data/0ca2dd791/195f516819b34dd196068cf6408d7b1a [2021-11-20 06:10:34,772 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 06:10:34,773 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 06:10:34,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 06:10:34,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 06:10:34,781 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 06:10:34,782 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:10:34" (1/1) ... [2021-11-20 06:10:34,783 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b86056e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:34, skipping insertion in model container [2021-11-20 06:10:34,783 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:10:34" (1/1) ... [2021-11-20 06:10:34,792 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 06:10:34,837 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 06:10:35,047 WARN L230 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_dee4b4b2-1292-442d-aae5-0c4ed5deea07/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2021-11-20 06:10:35,227 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:10:35,240 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 06:10:35,259 WARN L230 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_dee4b4b2-1292-442d-aae5-0c4ed5deea07/sv-benchmarks/c/product-lines/minepump_spec4_product64.cil.c[2897,2910] [2021-11-20 06:10:35,343 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 06:10:35,360 INFO L208 MainTranslator]: Completed translation [2021-11-20 06:10:35,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35 WrapperNode [2021-11-20 06:10:35,361 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 06:10:35,362 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 06:10:35,362 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 06:10:35,362 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 06:10:35,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,387 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,427 INFO L137 Inliner]: procedures = 59, calls = 163, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 297 [2021-11-20 06:10:35,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 06:10:35,434 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 06:10:35,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 06:10:35,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 06:10:35,446 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,446 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,494 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 06:10:35,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 06:10:35,495 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 06:10:35,495 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 06:10:35,501 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (1/1) ... [2021-11-20 06:10:35,519 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-20 06:10:35,540 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:10:35,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-20 06:10:35,590 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-20 06:10:35,606 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 06:10:35,606 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-20 06:10:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-20 06:10:35,607 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-20 06:10:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-20 06:10:35,607 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-20 06:10:35,607 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-20 06:10:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:10:35,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:10:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-20 06:10:35,608 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-20 06:10:35,608 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2021-11-20 06:10:35,608 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2021-11-20 06:10:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2021-11-20 06:10:35,609 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2021-11-20 06:10:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2021-11-20 06:10:35,609 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2021-11-20 06:10:35,609 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 06:10:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-20 06:10:35,610 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-20 06:10:35,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 06:10:35,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 06:10:35,711 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 06:10:35,712 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 06:10:36,061 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 06:10:36,070 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 06:10:36,070 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 06:10:36,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:10:36 BoogieIcfgContainer [2021-11-20 06:10:36,073 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 06:10:36,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-20 06:10:36,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-20 06:10:36,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-20 06:10:36,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:10:34" (1/3) ... [2021-11-20 06:10:36,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fab275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:10:36, skipping insertion in model container [2021-11-20 06:10:36,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:10:35" (2/3) ... [2021-11-20 06:10:36,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fab275c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:10:36, skipping insertion in model container [2021-11-20 06:10:36,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:10:36" (3/3) ... [2021-11-20 06:10:36,082 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product64.cil.c [2021-11-20 06:10:36,087 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-20 06:10:36,088 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-20 06:10:36,140 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-20 06:10:36,148 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 [2021-11-20 06:10:36,148 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-20 06:10:36,170 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2021-11-20 06:10:36,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-11-20 06:10:36,177 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:36,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:36,178 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:36,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:36,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1842892420, now seen corresponding path program 1 times [2021-11-20 06:10:36,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:36,194 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52859696] [2021-11-20 06:10:36,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:36,195 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:36,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:36,414 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:36,415 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52859696] [2021-11-20 06:10:36,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52859696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:36,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:36,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:10:36,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984638578] [2021-11-20 06:10:36,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:36,424 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-20 06:10:36,424 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:36,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-20 06:10:36,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-20 06:10:36,463 INFO L87 Difference]: Start difference. First operand has 108 states, 80 states have (on average 1.375) internal successors, (110), 91 states have internal predecessors, (110), 17 states have call successors, (17), 9 states have call predecessors, (17), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:36,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:36,544 INFO L93 Difference]: Finished difference Result 208 states and 283 transitions. [2021-11-20 06:10:36,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-20 06:10:36,547 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2021-11-20 06:10:36,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:36,561 INFO L225 Difference]: With dead ends: 208 [2021-11-20 06:10:36,561 INFO L226 Difference]: Without dead ends: 99 [2021-11-20 06:10:36,570 INFO L932 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 [2021-11-20 06:10:36,574 INFO L933 BasicCegarLoop]: 138 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:36,576 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:10:36,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2021-11-20 06:10:36,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 99. [2021-11-20 06:10:36,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 73 states have (on average 1.3150684931506849) internal successors, (96), 83 states have internal predecessors, (96), 17 states have call successors, (17), 9 states have call predecessors, (17), 8 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2021-11-20 06:10:36,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 129 transitions. [2021-11-20 06:10:36,662 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 129 transitions. Word has length 19 [2021-11-20 06:10:36,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:36,662 INFO L470 AbstractCegarLoop]: Abstraction has 99 states and 129 transitions. [2021-11-20 06:10:36,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:36,663 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 129 transitions. [2021-11-20 06:10:36,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-11-20 06:10:36,665 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:36,665 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:36,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-20 06:10:36,666 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash 750568636, now seen corresponding path program 1 times [2021-11-20 06:10:36,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:36,668 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502387602] [2021-11-20 06:10:36,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:36,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:36,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:36,829 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:36,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502387602] [2021-11-20 06:10:36,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502387602] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:36,844 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:36,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 06:10:36,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422674883] [2021-11-20 06:10:36,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:36,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:10:36,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:36,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:10:36,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:10:36,846 INFO L87 Difference]: Start difference. First operand 99 states and 129 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:36,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:36,867 INFO L93 Difference]: Finished difference Result 159 states and 207 transitions. [2021-11-20 06:10:36,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:10:36,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2021-11-20 06:10:36,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:36,870 INFO L225 Difference]: With dead ends: 159 [2021-11-20 06:10:36,870 INFO L226 Difference]: Without dead ends: 90 [2021-11-20 06:10:36,871 INFO L932 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 [2021-11-20 06:10:36,873 INFO L933 BasicCegarLoop]: 116 mSDtfsCounter, 17 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:36,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 210 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:10:36,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2021-11-20 06:10:36,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2021-11-20 06:10:36,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 67 states have (on average 1.328358208955224) internal successors, (89), 77 states have internal predecessors, (89), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2021-11-20 06:10:36,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 117 transitions. [2021-11-20 06:10:36,890 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 117 transitions. Word has length 20 [2021-11-20 06:10:36,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:36,890 INFO L470 AbstractCegarLoop]: Abstraction has 90 states and 117 transitions. [2021-11-20 06:10:36,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:36,891 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 117 transitions. [2021-11-20 06:10:36,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-11-20 06:10:36,892 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:36,892 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:36,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-20 06:10:36,893 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:36,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:36,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1483068035, now seen corresponding path program 1 times [2021-11-20 06:10:36,894 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:36,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136773592] [2021-11-20 06:10:36,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:36,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:36,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:37,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:37,037 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:37,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136773592] [2021-11-20 06:10:37,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136773592] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:37,039 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:37,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 06:10:37,040 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309444264] [2021-11-20 06:10:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:37,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:10:37,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:37,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:10:37,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:10:37,043 INFO L87 Difference]: Start difference. First operand 90 states and 117 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:37,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:37,205 INFO L93 Difference]: Finished difference Result 211 states and 278 transitions. [2021-11-20 06:10:37,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 06:10:37,206 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-11-20 06:10:37,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:37,209 INFO L225 Difference]: With dead ends: 211 [2021-11-20 06:10:37,209 INFO L226 Difference]: Without dead ends: 128 [2021-11-20 06:10:37,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:10:37,213 INFO L933 BasicCegarLoop]: 125 mSDtfsCounter, 180 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 180 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:37,213 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [180 Valid, 371 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-20 06:10:37,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2021-11-20 06:10:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2021-11-20 06:10:37,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 94 states have (on average 1.351063829787234) internal successors, (127), 107 states have internal predecessors, (127), 18 states have call successors, (18), 12 states have call predecessors, (18), 12 states have return successors, (19), 12 states have call predecessors, (19), 18 states have call successors, (19) [2021-11-20 06:10:37,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 164 transitions. [2021-11-20 06:10:37,237 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 164 transitions. Word has length 25 [2021-11-20 06:10:37,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:37,238 INFO L470 AbstractCegarLoop]: Abstraction has 125 states and 164 transitions. [2021-11-20 06:10:37,238 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:37,239 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 164 transitions. [2021-11-20 06:10:37,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-11-20 06:10:37,240 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:37,241 INFO L514 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] [2021-11-20 06:10:37,241 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-20 06:10:37,241 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:37,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:37,242 INFO L85 PathProgramCache]: Analyzing trace with hash 417349686, now seen corresponding path program 1 times [2021-11-20 06:10:37,243 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:37,243 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745746784] [2021-11-20 06:10:37,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:37,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:37,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:37,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:37,310 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:37,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745746784] [2021-11-20 06:10:37,311 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745746784] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:37,311 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:37,311 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 06:10:37,312 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194348768] [2021-11-20 06:10:37,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:37,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:10:37,313 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:37,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:10:37,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 06:10:37,314 INFO L87 Difference]: Start difference. First operand 125 states and 164 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 4 states have internal predecessors, (27), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:37,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:37,405 INFO L93 Difference]: Finished difference Result 349 states and 479 transitions. [2021-11-20 06:10:37,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:10:37,405 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2021-11-20 06:10:37,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:37,409 INFO L225 Difference]: With dead ends: 349 [2021-11-20 06:10:37,409 INFO L226 Difference]: Without dead ends: 231 [2021-11-20 06:10:37,412 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:10:37,413 INFO L933 BasicCegarLoop]: 124 mSDtfsCounter, 88 mSDsluCounter, 352 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 476 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:37,414 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 476 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:10:37,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2021-11-20 06:10:37,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 231. [2021-11-20 06:10:37,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 172 states have (on average 1.3313953488372092) internal successors, (229), 195 states have internal predecessors, (229), 36 states have call successors, (36), 24 states have call predecessors, (36), 22 states have return successors, (41), 22 states have call predecessors, (41), 36 states have call successors, (41) [2021-11-20 06:10:37,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 306 transitions. [2021-11-20 06:10:37,472 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 306 transitions. Word has length 28 [2021-11-20 06:10:37,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:37,472 INFO L470 AbstractCegarLoop]: Abstraction has 231 states and 306 transitions. [2021-11-20 06:10:37,473 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), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:37,473 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 306 transitions. [2021-11-20 06:10:37,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-20 06:10:37,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:37,481 INFO L514 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] [2021-11-20 06:10:37,481 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-20 06:10:37,481 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:37,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:37,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1384596677, now seen corresponding path program 1 times [2021-11-20 06:10:37,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:37,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697461480] [2021-11-20 06:10:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:37,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:37,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:37,573 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:37,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697461480] [2021-11-20 06:10:37,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697461480] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:37,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:37,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-20 06:10:37,575 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062277892] [2021-11-20 06:10:37,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:37,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-20 06:10:37,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:37,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 06:10:37,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 06:10:37,578 INFO L87 Difference]: Start difference. First operand 231 states and 306 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:37,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:37,664 INFO L93 Difference]: Finished difference Result 511 states and 692 transitions. [2021-11-20 06:10:37,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 06:10:37,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 30 [2021-11-20 06:10:37,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:37,671 INFO L225 Difference]: With dead ends: 511 [2021-11-20 06:10:37,671 INFO L226 Difference]: Without dead ends: 287 [2021-11-20 06:10:37,673 INFO L932 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 [2021-11-20 06:10:37,680 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 68 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 189 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:37,685 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 189 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:10:37,687 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-20 06:10:37,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 283. [2021-11-20 06:10:37,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 217 states have (on average 1.271889400921659) internal successors, (276), 234 states have internal predecessors, (276), 34 states have call successors, (34), 32 states have call predecessors, (34), 31 states have return successors, (50), 31 states have call predecessors, (50), 34 states have call successors, (50) [2021-11-20 06:10:37,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 360 transitions. [2021-11-20 06:10:37,740 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 360 transitions. Word has length 30 [2021-11-20 06:10:37,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:37,740 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 360 transitions. [2021-11-20 06:10:37,741 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 2 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 06:10:37,741 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 360 transitions. [2021-11-20 06:10:37,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-20 06:10:37,746 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:37,746 INFO L514 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] [2021-11-20 06:10:37,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-20 06:10:37,747 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:37,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:37,749 INFO L85 PathProgramCache]: Analyzing trace with hash -263887204, now seen corresponding path program 1 times [2021-11-20 06:10:37,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:37,749 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1832409227] [2021-11-20 06:10:37,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:37,750 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:37,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:37,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:37,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:37,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:37,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1832409227] [2021-11-20 06:10:37,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1832409227] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:37,853 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:37,853 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:10:37,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372834373] [2021-11-20 06:10:37,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:37,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:10:37,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:37,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:10:37,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:10:37,856 INFO L87 Difference]: Start difference. First operand 283 states and 360 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:10:38,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:38,172 INFO L93 Difference]: Finished difference Result 335 states and 428 transitions. [2021-11-20 06:10:38,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-20 06:10:38,173 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 32 [2021-11-20 06:10:38,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:38,178 INFO L225 Difference]: With dead ends: 335 [2021-11-20 06:10:38,179 INFO L226 Difference]: Without dead ends: 333 [2021-11-20 06:10:38,180 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2021-11-20 06:10:38,189 INFO L933 BasicCegarLoop]: 117 mSDtfsCounter, 161 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 389 SdHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:38,192 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 389 Invalid, 260 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:10:38,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2021-11-20 06:10:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 316. [2021-11-20 06:10:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 316 states, 241 states have (on average 1.2572614107883817) internal successors, (303), 264 states have internal predecessors, (303), 38 states have call successors, (38), 32 states have call predecessors, (38), 36 states have return successors, (61), 34 states have call predecessors, (61), 38 states have call successors, (61) [2021-11-20 06:10:38,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 316 states to 316 states and 402 transitions. [2021-11-20 06:10:38,252 INFO L78 Accepts]: Start accepts. Automaton has 316 states and 402 transitions. Word has length 32 [2021-11-20 06:10:38,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:38,255 INFO L470 AbstractCegarLoop]: Abstraction has 316 states and 402 transitions. [2021-11-20 06:10:38,255 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-11-20 06:10:38,255 INFO L276 IsEmpty]: Start isEmpty. Operand 316 states and 402 transitions. [2021-11-20 06:10:38,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-20 06:10:38,260 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:38,260 INFO L514 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, 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] [2021-11-20 06:10:38,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-20 06:10:38,261 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:38,262 INFO L85 PathProgramCache]: Analyzing trace with hash 285414993, now seen corresponding path program 1 times [2021-11-20 06:10:38,263 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:38,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951344392] [2021-11-20 06:10:38,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:38,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:38,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:38,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2021-11-20 06:10:38,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:38,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:10:38,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:38,389 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:38,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951344392] [2021-11-20 06:10:38,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951344392] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:38,389 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:38,389 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-20 06:10:38,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660083133] [2021-11-20 06:10:38,390 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:38,390 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-20 06:10:38,391 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:38,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-20 06:10:38,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:10:38,391 INFO L87 Difference]: Start difference. First operand 316 states and 402 transitions. Second operand has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:10:38,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:38,784 INFO L93 Difference]: Finished difference Result 693 states and 906 transitions. [2021-11-20 06:10:38,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-20 06:10:38,785 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 59 [2021-11-20 06:10:38,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:38,788 INFO L225 Difference]: With dead ends: 693 [2021-11-20 06:10:38,789 INFO L226 Difference]: Without dead ends: 384 [2021-11-20 06:10:38,791 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2021-11-20 06:10:38,794 INFO L933 BasicCegarLoop]: 128 mSDtfsCounter, 208 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 448 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:38,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [212 Valid, 570 Invalid, 448 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:10:38,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2021-11-20 06:10:38,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 346. [2021-11-20 06:10:38,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 266 states have (on average 1.236842105263158) internal successors, (329), 289 states have internal predecessors, (329), 38 states have call successors, (38), 32 states have call predecessors, (38), 41 states have return successors, (64), 38 states have call predecessors, (64), 38 states have call successors, (64) [2021-11-20 06:10:38,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 431 transitions. [2021-11-20 06:10:38,831 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 431 transitions. Word has length 59 [2021-11-20 06:10:38,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:38,832 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 431 transitions. [2021-11-20 06:10:38,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.25) internal successors, (50), 6 states have internal predecessors, (50), 3 states have call successors, (5), 4 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:10:38,832 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 431 transitions. [2021-11-20 06:10:38,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 06:10:38,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:38,835 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:38,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-20 06:10:38,835 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:38,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:38,836 INFO L85 PathProgramCache]: Analyzing trace with hash 1185571886, now seen corresponding path program 1 times [2021-11-20 06:10:38,836 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:38,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631607745] [2021-11-20 06:10:38,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:38,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:38,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:38,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:10:38,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:38,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:10:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:38,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:38,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:38,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631607745] [2021-11-20 06:10:38,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631607745] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:38,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:38,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-20 06:10:38,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060996124] [2021-11-20 06:10:38,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:38,978 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:10:38,978 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:38,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:10:38,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-20 06:10:38,980 INFO L87 Difference]: Start difference. First operand 346 states and 431 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:10:39,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:39,200 INFO L93 Difference]: Finished difference Result 669 states and 852 transitions. [2021-11-20 06:10:39,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-20 06:10:39,200 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2021-11-20 06:10:39,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:39,204 INFO L225 Difference]: With dead ends: 669 [2021-11-20 06:10:39,204 INFO L226 Difference]: Without dead ends: 330 [2021-11-20 06:10:39,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:10:39,206 INFO L933 BasicCegarLoop]: 101 mSDtfsCounter, 168 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:39,207 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 310 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:10:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2021-11-20 06:10:39,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 279. [2021-11-20 06:10:39,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 214 states have (on average 1.233644859813084) internal successors, (264), 232 states have internal predecessors, (264), 32 states have call successors, (32), 27 states have call predecessors, (32), 32 states have return successors, (49), 30 states have call predecessors, (49), 32 states have call successors, (49) [2021-11-20 06:10:39,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 345 transitions. [2021-11-20 06:10:39,233 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 345 transitions. Word has length 56 [2021-11-20 06:10:39,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:39,234 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 345 transitions. [2021-11-20 06:10:39,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:10:39,234 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 345 transitions. [2021-11-20 06:10:39,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-11-20 06:10:39,236 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:39,236 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:39,236 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-20 06:10:39,237 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:39,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:39,237 INFO L85 PathProgramCache]: Analyzing trace with hash 1247611500, now seen corresponding path program 1 times [2021-11-20 06:10:39,237 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:39,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953818516] [2021-11-20 06:10:39,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:39,238 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:39,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-20 06:10:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:10:39,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:39,356 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:39,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953818516] [2021-11-20 06:10:39,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953818516] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:39,356 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 06:10:39,357 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-20 06:10:39,357 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316709404] [2021-11-20 06:10:39,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:39,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-20 06:10:39,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:39,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-20 06:10:39,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-20 06:10:39,359 INFO L87 Difference]: Start difference. First operand 279 states and 345 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:10:39,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:39,785 INFO L93 Difference]: Finished difference Result 617 states and 805 transitions. [2021-11-20 06:10:39,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-11-20 06:10:39,785 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 56 [2021-11-20 06:10:39,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:39,790 INFO L225 Difference]: With dead ends: 617 [2021-11-20 06:10:39,790 INFO L226 Difference]: Without dead ends: 418 [2021-11-20 06:10:39,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:10:39,794 INFO L933 BasicCegarLoop]: 146 mSDtfsCounter, 252 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:39,794 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 505 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-20 06:10:39,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2021-11-20 06:10:39,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 407. [2021-11-20 06:10:39,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 314 states have (on average 1.21656050955414) internal successors, (382), 337 states have internal predecessors, (382), 46 states have call successors, (46), 40 states have call predecessors, (46), 46 states have return successors, (84), 47 states have call predecessors, (84), 46 states have call successors, (84) [2021-11-20 06:10:39,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 512 transitions. [2021-11-20 06:10:39,838 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 512 transitions. Word has length 56 [2021-11-20 06:10:39,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:39,838 INFO L470 AbstractCegarLoop]: Abstraction has 407 states and 512 transitions. [2021-11-20 06:10:39,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2021-11-20 06:10:39,839 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 512 transitions. [2021-11-20 06:10:39,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-20 06:10:39,841 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:39,841 INFO L514 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:39,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-20 06:10:39,842 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:39,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:39,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1661930304, now seen corresponding path program 1 times [2021-11-20 06:10:39,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:39,844 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447377704] [2021-11-20 06:10:39,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:39,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:39,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:10:39,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:10:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,980 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:10:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2021-11-20 06:10:39,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:39,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-11-20 06:10:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:40,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:10:40,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:40,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:40,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:40,011 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 9 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 06:10:40,011 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:40,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447377704] [2021-11-20 06:10:40,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447377704] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:10:40,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [535112585] [2021-11-20 06:10:40,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:40,012 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:10:40,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:10:40,014 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:10:40,047 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-20 06:10:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:40,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-20 06:10:40,160 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:10:40,519 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 06:10:40,519 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-20 06:10:40,774 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-11-20 06:10:40,774 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [535112585] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-20 06:10:40,774 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-20 06:10:40,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2021-11-20 06:10:40,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631152787] [2021-11-20 06:10:40,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-20 06:10:40,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-20 06:10:40,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:40,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-20 06:10:40,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-20 06:10:40,778 INFO L87 Difference]: Start difference. First operand 407 states and 512 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-20 06:10:41,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:41,455 INFO L93 Difference]: Finished difference Result 968 states and 1279 transitions. [2021-11-20 06:10:41,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-11-20 06:10:41,456 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 103 [2021-11-20 06:10:41,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:41,462 INFO L225 Difference]: With dead ends: 968 [2021-11-20 06:10:41,462 INFO L226 Difference]: Without dead ends: 641 [2021-11-20 06:10:41,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 227 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=227, Invalid=585, Unknown=0, NotChecked=0, Total=812 [2021-11-20 06:10:41,465 INFO L933 BasicCegarLoop]: 151 mSDtfsCounter, 385 mSDsluCounter, 437 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:41,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [393 Valid, 588 Invalid, 750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-20 06:10:41,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 641 states. [2021-11-20 06:10:41,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 641 to 557. [2021-11-20 06:10:41,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 425 states have (on average 1.223529411764706) internal successors, (520), 458 states have internal predecessors, (520), 66 states have call successors, (66), 57 states have call predecessors, (66), 65 states have return successors, (128), 63 states have call predecessors, (128), 66 states have call successors, (128) [2021-11-20 06:10:41,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 714 transitions. [2021-11-20 06:10:41,520 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 714 transitions. Word has length 103 [2021-11-20 06:10:41,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:41,521 INFO L470 AbstractCegarLoop]: Abstraction has 557 states and 714 transitions. [2021-11-20 06:10:41,521 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 6 states have internal predecessors, (101), 3 states have call successors, (21), 6 states have call predecessors, (21), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-20 06:10:41,522 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 714 transitions. [2021-11-20 06:10:41,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-20 06:10:41,528 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:41,528 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:41,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-20 06:10:41,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:10:41,744 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:41,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:41,745 INFO L85 PathProgramCache]: Analyzing trace with hash 745596908, now seen corresponding path program 2 times [2021-11-20 06:10:41,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:41,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510356451] [2021-11-20 06:10:41,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:41,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:41,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:41,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:10:41,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:10:41,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:41,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:10:41,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-20 06:10:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:10:41,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:10:41,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:10:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:41,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 06:10:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-20 06:10:41,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:10:41,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:41,978 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2021-11-20 06:10:41,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:41,978 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510356451] [2021-11-20 06:10:41,978 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510356451] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:10:41,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387462986] [2021-11-20 06:10:41,979 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-20 06:10:41,979 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:10:41,979 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:10:41,980 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:10:41,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-20 06:10:42,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-20 06:10:42,118 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-20 06:10:42,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-20 06:10:42,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:10:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2021-11-20 06:10:42,462 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:10:42,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387462986] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:42,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:10:42,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 14 [2021-11-20 06:10:42,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416553836] [2021-11-20 06:10:42,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:42,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-20 06:10:42,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:42,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 06:10:42,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-20 06:10:42,465 INFO L87 Difference]: Start difference. First operand 557 states and 714 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-20 06:10:42,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:42,779 INFO L93 Difference]: Finished difference Result 1473 states and 1967 transitions. [2021-11-20 06:10:42,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-11-20 06:10:42,779 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 150 [2021-11-20 06:10:42,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:42,786 INFO L225 Difference]: With dead ends: 1473 [2021-11-20 06:10:42,787 INFO L226 Difference]: Without dead ends: 995 [2021-11-20 06:10:42,789 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 176 SyntacticMatches, 3 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2021-11-20 06:10:42,790 INFO L933 BasicCegarLoop]: 206 mSDtfsCounter, 246 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 684 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:42,790 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 684 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-20 06:10:42,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 995 states. [2021-11-20 06:10:42,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 995 to 972. [2021-11-20 06:10:42,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 744 states have (on average 1.2231182795698925) internal successors, (910), 792 states have internal predecessors, (910), 111 states have call successors, (111), 100 states have call predecessors, (111), 116 states have return successors, (207), 113 states have call predecessors, (207), 111 states have call successors, (207) [2021-11-20 06:10:42,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1228 transitions. [2021-11-20 06:10:42,859 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1228 transitions. Word has length 150 [2021-11-20 06:10:42,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:42,860 INFO L470 AbstractCegarLoop]: Abstraction has 972 states and 1228 transitions. [2021-11-20 06:10:42,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-11-20 06:10:42,860 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1228 transitions. [2021-11-20 06:10:42,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-20 06:10:42,864 INFO L506 BasicCegarLoop]: Found error trace [2021-11-20 06:10:42,865 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:42,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-20 06:10:43,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:10:43,080 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-20 06:10:43,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 06:10:43,081 INFO L85 PathProgramCache]: Analyzing trace with hash 1699537066, now seen corresponding path program 1 times [2021-11-20 06:10:43,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 06:10:43,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253238444] [2021-11-20 06:10:43,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:43,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 06:10:43,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-11-20 06:10:43,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-20 06:10:43,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-20 06:10:43,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:43,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-11-20 06:10:43,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2021-11-20 06:10:43,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-11-20 06:10:43,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-20 06:10:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:10:43,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:43,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2021-11-20 06:10:43,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-11-20 06:10:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-11-20 06:10:43,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-11-20 06:10:43,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,222 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2021-11-20 06:10:43,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 06:10:43,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253238444] [2021-11-20 06:10:43,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253238444] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-20 06:10:43,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1360615585] [2021-11-20 06:10:43,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 06:10:43,223 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-20 06:10:43,223 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 06:10:43,224 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-20 06:10:43,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-20 06:10:43,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 06:10:43,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-20 06:10:43,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-20 06:10:43,557 INFO L134 CoverageAnalysis]: Checked inductivity of 105 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-11-20 06:10:43,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-20 06:10:43,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1360615585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 06:10:43,557 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-20 06:10:43,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2021-11-20 06:10:43,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107936437] [2021-11-20 06:10:43,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 06:10:43,559 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-20 06:10:43,559 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 06:10:43,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 06:10:43,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-11-20 06:10:43,560 INFO L87 Difference]: Start difference. First operand 972 states and 1228 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:10:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 06:10:43,636 INFO L93 Difference]: Finished difference Result 1348 states and 1689 transitions. [2021-11-20 06:10:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 06:10:43,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 150 [2021-11-20 06:10:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-20 06:10:43,638 INFO L225 Difference]: With dead ends: 1348 [2021-11-20 06:10:43,638 INFO L226 Difference]: Without dead ends: 0 [2021-11-20 06:10:43,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-11-20 06:10:43,644 INFO L933 BasicCegarLoop]: 115 mSDtfsCounter, 9 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-20 06:10:43,645 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 443 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-20 06:10:43,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-20 06:10:43,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-20 06:10:43,646 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) [2021-11-20 06:10:43,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-20 06:10:43,646 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2021-11-20 06:10:43,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-20 06:10:43,647 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-20 06:10:43,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2021-11-20 06:10:43,647 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-20 06:10:43,647 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-20 06:10:43,650 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-20 06:10:43,689 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-20 06:10:43,860 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-20 06:10:43,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-20 06:10:46,593 INFO L854 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 406 413) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,594 INFO L858 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 406 413) no Hoare annotation was computed. [2021-11-20 06:10:46,594 INFO L858 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 406 413) no Hoare annotation was computed. [2021-11-20 06:10:46,594 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 296 302) no Hoare annotation was computed. [2021-11-20 06:10:46,594 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 296 302) the Hoare annotation is: true [2021-11-20 06:10:46,594 INFO L858 garLoopResultBuilder]: For program point L928-1(lines 924 935) no Hoare annotation was computed. [2021-11-20 06:10:46,594 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 924 935) the Hoare annotation is: true [2021-11-20 06:10:46,594 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 924 935) no Hoare annotation was computed. [2021-11-20 06:10:46,595 INFO L854 garLoopResultBuilder]: At program point L159(lines 154 161) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2021-11-20 06:10:46,595 INFO L858 garLoopResultBuilder]: For program point L283-1(lines 283 289) no Hoare annotation was computed. [2021-11-20 06:10:46,595 INFO L854 garLoopResultBuilder]: At program point L370(line 370) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2021-11-20 06:10:46,595 INFO L854 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2021-11-20 06:10:46,595 INFO L854 garLoopResultBuilder]: At program point L973(lines 968 976) the Hoare annotation is: (let ((.cse7 (<= 2 ~waterLevel~0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse2 (= 0 ~systemActive~0))) (let ((.cse1 (and .cse7 .cse5 .cse8 (not .cse2))) (.cse4 (= ~pumpRunning~0 0)) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (<= 1 |old(~waterLevel~0)|))) (.cse9 (<= 1 |timeShift_getWaterLevel_#res#1|))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 .cse5) .cse1 .cse6) (or (and .cse7 .cse8) (and .cse4 (<= 1 ~waterLevel~0) .cse9) .cse2 .cse3) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= |timeShift_getWaterLevel_#res#1| 1)) (or .cse0 .cse6 .cse9)))) [2021-11-20 06:10:46,596 INFO L854 garLoopResultBuilder]: At program point L362(line 362) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2021-11-20 06:10:46,596 INFO L858 garLoopResultBuilder]: For program point L362-1(line 362) no Hoare annotation was computed. [2021-11-20 06:10:46,596 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 272 295) no Hoare annotation was computed. [2021-11-20 06:10:46,596 INFO L854 garLoopResultBuilder]: At program point L375(line 375) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (<= 1 |old(~waterLevel~0)|))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse2) (or .cse0 .cse2 (not .cse3)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1) .cse3 (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:10:46,596 INFO L854 garLoopResultBuilder]: At program point L375-1(lines 356 380) the Hoare annotation is: (let ((.cse2 (= 0 ~systemActive~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse1 (not (<= 1 |old(~waterLevel~0)|))) (.cse3 (<= 2 ~waterLevel~0))) (and (or .cse0 .cse1 (not .cse2)) (or .cse3 .cse2 (and .cse4 (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse4 .cse5) .cse1 (and .cse3 .cse5))))) [2021-11-20 06:10:46,596 INFO L858 garLoopResultBuilder]: For program point L276-1(lines 275 294) no Hoare annotation was computed. [2021-11-20 06:10:46,596 INFO L858 garLoopResultBuilder]: For program point L177(lines 177 183) no Hoare annotation was computed. [2021-11-20 06:10:46,596 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 186) no Hoare annotation was computed. [2021-11-20 06:10:46,597 INFO L854 garLoopResultBuilder]: At program point L173-1(lines 165 189) the Hoare annotation is: (let ((.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|)) (.cse3 (<= 1 |timeShift_getWaterLevel_#res#1|)) (.cse5 (= 0 ~systemActive~0)) (.cse7 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1|)) (.cse8 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4) (not .cse5) .cse6) (or .cse0 (and .cse7 .cse4 .cse8) .cse5 .cse6) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~1#1| 1) .cse1 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))) (or (and .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3) .cse5 (and .cse7 (<= 2 ~waterLevel~0) .cse8) .cse6))) [2021-11-20 06:10:46,597 INFO L858 garLoopResultBuilder]: For program point L904(lines 904 908) no Hoare annotation was computed. [2021-11-20 06:10:46,597 INFO L854 garLoopResultBuilder]: At program point L904-2(lines 900 911) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2021-11-20 06:10:46,597 INFO L854 garLoopResultBuilder]: At program point L430(lines 425 433) the Hoare annotation is: (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 |old(~waterLevel~0)|))) (or (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|)))) [2021-11-20 06:10:46,597 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 372) no Hoare annotation was computed. [2021-11-20 06:10:46,598 INFO L858 garLoopResultBuilder]: For program point L360(lines 360 377) no Hoare annotation was computed. [2021-11-20 06:10:46,598 INFO L858 garLoopResultBuilder]: For program point L158(line 158) no Hoare annotation was computed. [2021-11-20 06:10:46,598 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 272 295) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) (not (<= 1 |old(~waterLevel~0)|))) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:10:46,598 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 272 295) no Hoare annotation was computed. [2021-11-20 06:10:46,598 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 158) no Hoare annotation was computed. [2021-11-20 06:10:46,599 INFO L861 garLoopResultBuilder]: At program point L66-1(lines 66 70) the Hoare annotation is: true [2021-11-20 06:10:46,599 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 52 81) no Hoare annotation was computed. [2021-11-20 06:10:46,599 INFO L858 garLoopResultBuilder]: For program point L63(line 63) no Hoare annotation was computed. [2021-11-20 06:10:46,599 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 52 81) the Hoare annotation is: true [2021-11-20 06:10:46,599 INFO L861 garLoopResultBuilder]: At program point L62-2(lines 62 76) the Hoare annotation is: true [2021-11-20 06:10:46,599 INFO L861 garLoopResultBuilder]: At program point L58(line 58) the Hoare annotation is: true [2021-11-20 06:10:46,600 INFO L858 garLoopResultBuilder]: For program point L58-1(line 58) no Hoare annotation was computed. [2021-11-20 06:10:46,600 INFO L861 garLoopResultBuilder]: At program point L77(lines 52 81) the Hoare annotation is: true [2021-11-20 06:10:46,600 INFO L858 garLoopResultBuilder]: For program point L73(line 73) no Hoare annotation was computed. [2021-11-20 06:10:46,600 INFO L858 garLoopResultBuilder]: For program point L66(lines 66 70) no Hoare annotation was computed. [2021-11-20 06:10:46,600 INFO L854 garLoopResultBuilder]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2021-11-20 06:10:46,600 INFO L854 garLoopResultBuilder]: At program point L250(lines 203 252) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2021-11-20 06:10:46,601 INFO L858 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2021-11-20 06:10:46,601 INFO L858 garLoopResultBuilder]: For program point L213-1(lines 213 219) no Hoare annotation was computed. [2021-11-20 06:10:46,601 INFO L858 garLoopResultBuilder]: For program point L205(lines 205 209) no Hoare annotation was computed. [2021-11-20 06:10:46,601 INFO L854 garLoopResultBuilder]: At program point L1031(lines 1026 1034) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-11-20 06:10:46,601 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-20 06:10:46,602 INFO L854 garLoopResultBuilder]: At program point L1023(lines 1019 1025) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-11-20 06:10:46,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-20 06:10:46,602 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-20 06:10:46,602 INFO L854 garLoopResultBuilder]: At program point L528(lines 523 530) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2021-11-20 06:10:46,602 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 147) no Hoare annotation was computed. [2021-11-20 06:10:46,602 INFO L858 garLoopResultBuilder]: For program point L140-2(lines 140 147) no Hoare annotation was computed. [2021-11-20 06:10:46,602 INFO L854 garLoopResultBuilder]: At program point L520(lines 508 522) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= 1 ~waterLevel~0) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,603 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-20 06:10:46,603 INFO L858 garLoopResultBuilder]: For program point L512(lines 512 518) no Hoare annotation was computed. [2021-11-20 06:10:46,603 INFO L861 garLoopResultBuilder]: At program point L256(lines 193 260) the Hoare annotation is: true [2021-11-20 06:10:46,603 INFO L858 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2021-11-20 06:10:46,603 INFO L858 garLoopResultBuilder]: For program point L512-1(lines 512 518) no Hoare annotation was computed. [2021-11-20 06:10:46,603 INFO L858 garLoopResultBuilder]: For program point L223-1(lines 223 229) no Hoare annotation was computed. [2021-11-20 06:10:46,604 INFO L861 garLoopResultBuilder]: At program point L124(lines 117 126) the Hoare annotation is: true [2021-11-20 06:10:46,604 INFO L854 garLoopResultBuilder]: At program point L1016(lines 1012 1018) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-11-20 06:10:46,604 INFO L854 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2021-11-20 06:10:46,604 INFO L861 garLoopResultBuilder]: At program point L149(lines 130 152) the Hoare annotation is: true [2021-11-20 06:10:46,604 INFO L854 garLoopResultBuilder]: At program point L253(lines 202 254) the Hoare annotation is: false [2021-11-20 06:10:46,605 INFO L854 garLoopResultBuilder]: At program point L113(lines 109 115) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (not (= 0 ~systemActive~0))) [2021-11-20 06:10:46,605 INFO L858 garLoopResultBuilder]: For program point L241(lines 241 247) no Hoare annotation was computed. [2021-11-20 06:10:46,605 INFO L854 garLoopResultBuilder]: At program point L241-2(lines 233 248) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0)) (and .cse0 .cse1 (<= 2 ~waterLevel~0) .cse2 (not (= 0 ~systemActive~0))))) [2021-11-20 06:10:46,605 INFO L858 garLoopResultBuilder]: For program point L204(lines 203 252) no Hoare annotation was computed. [2021-11-20 06:10:46,605 INFO L858 garLoopResultBuilder]: For program point L233(lines 233 248) no Hoare annotation was computed. [2021-11-20 06:10:46,606 INFO L854 garLoopResultBuilder]: At program point L514(line 514) the Hoare annotation is: (and (= |ULTIMATE.start_valid_product_#res#1| 1) (= |ULTIMATE.start_main_~tmp~0#1| 1) (<= 2 ~waterLevel~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2021-11-20 06:10:46,606 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 304 328) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,606 INFO L858 garLoopResultBuilder]: For program point L479(lines 479 483) no Hoare annotation was computed. [2021-11-20 06:10:46,606 INFO L854 garLoopResultBuilder]: At program point L318(line 318) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 0) (= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0)) (not (<= 1 ~waterLevel~0)) .cse1) (or (not (= ~waterLevel~0 1)) .cse0 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) .cse1))) [2021-11-20 06:10:46,606 INFO L858 garLoopResultBuilder]: For program point L479-2(lines 479 483) no Hoare annotation was computed. [2021-11-20 06:10:46,606 INFO L858 garLoopResultBuilder]: For program point L312(lines 312 320) no Hoare annotation was computed. [2021-11-20 06:10:46,607 INFO L858 garLoopResultBuilder]: For program point L981(lines 981 987) no Hoare annotation was computed. [2021-11-20 06:10:46,607 INFO L858 garLoopResultBuilder]: For program point L308(lines 308 325) no Hoare annotation was computed. [2021-11-20 06:10:46,607 INFO L854 garLoopResultBuilder]: At program point L323(line 323) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,607 INFO L858 garLoopResultBuilder]: For program point L323-1(lines 304 328) no Hoare annotation was computed. [2021-11-20 06:10:46,607 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 304 328) no Hoare annotation was computed. [2021-11-20 06:10:46,607 INFO L854 garLoopResultBuilder]: At program point L986(lines 977 990) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) .cse2) (or (not (= ~waterLevel~0 1)) .cse0 (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) .cse2))) [2021-11-20 06:10:46,608 INFO L858 garLoopResultBuilder]: For program point L396(lines 396 402) no Hoare annotation was computed. [2021-11-20 06:10:46,608 INFO L854 garLoopResultBuilder]: At program point L394(line 394) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 0) (<= 2 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,608 INFO L854 garLoopResultBuilder]: At program point L396-2(lines 389 405) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,608 INFO L858 garLoopResultBuilder]: For program point L394-1(line 394) no Hoare annotation was computed. [2021-11-20 06:10:46,609 INFO L854 garLoopResultBuilder]: At program point L485(lines 470 488) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= 0 ~systemActive~0))) (and (let ((.cse1 (= ~pumpRunning~0 0))) (or .cse0 (not (<= 1 ~waterLevel~0)) (and .cse1 (<= 2 ~waterLevel~0)) (and .cse1 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~2#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0)) .cse2)) (or (not (= ~waterLevel~0 1)) .cse0 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1)) .cse2))) [2021-11-20 06:10:46,609 INFO L854 garLoopResultBuilder]: At program point L386(lines 381 388) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (<= 1 ~waterLevel~0)) (<= 2 ~waterLevel~0) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,609 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 912 923) no Hoare annotation was computed. [2021-11-20 06:10:46,609 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 912 923) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) (not (<= 1 |old(~waterLevel~0)|)) .cse0) (or .cse0 (= 0 ~systemActive~0) (not (<= 2 |old(~waterLevel~0)|))))) [2021-11-20 06:10:46,609 INFO L858 garLoopResultBuilder]: For program point L916-1(lines 912 923) no Hoare annotation was computed. [2021-11-20 06:10:46,609 INFO L854 garLoopResultBuilder]: At program point L349(line 349) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,610 INFO L858 garLoopResultBuilder]: For program point L349-1(lines 330 354) no Hoare annotation was computed. [2021-11-20 06:10:46,610 INFO L854 garLoopResultBuilder]: At program point L504(lines 489 507) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~3#1|))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-20 06:10:46,610 INFO L858 garLoopResultBuilder]: For program point L498(lines 498 502) no Hoare annotation was computed. [2021-11-20 06:10:46,610 INFO L858 garLoopResultBuilder]: For program point L498-2(lines 498 502) no Hoare annotation was computed. [2021-11-20 06:10:46,610 INFO L854 garLoopResultBuilder]: At program point L996(lines 991 999) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-20 06:10:46,611 INFO L854 garLoopResultBuilder]: At program point L344(line 344) the Hoare annotation is: (or (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,611 INFO L854 garLoopResultBuilder]: At program point L340(line 340) the Hoare annotation is: (let ((.cse0 (not (<= 1 ~waterLevel~0))) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_#res#1|) (= |processEnvironment__wrappee__methaneQuery_isLowWaterSensorDry_#res#1| 0) (= |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |processEnvironment__wrappee__methaneQuery_isLowWaterLevel_~tmp___0~3#1|) (<= 1 |processEnvironment__wrappee__methaneQuery_~tmp~4#1|)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2021-11-20 06:10:46,611 INFO L858 garLoopResultBuilder]: For program point L338(lines 338 346) no Hoare annotation was computed. [2021-11-20 06:10:46,611 INFO L854 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 330 354) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= 1 ~waterLevel~0)) (= 0 ~systemActive~0)) [2021-11-20 06:10:46,611 INFO L858 garLoopResultBuilder]: For program point L334(lines 334 351) no Hoare annotation was computed. [2021-11-20 06:10:46,612 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 330 354) no Hoare annotation was computed. [2021-11-20 06:10:46,612 INFO L861 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 414 424) the Hoare annotation is: true [2021-11-20 06:10:46,612 INFO L861 garLoopResultBuilder]: At program point L941(lines 936 944) the Hoare annotation is: true [2021-11-20 06:10:46,612 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 414 424) no Hoare annotation was computed. [2021-11-20 06:10:46,612 INFO L858 garLoopResultBuilder]: For program point isMethaneAlarmFINAL(lines 414 424) no Hoare annotation was computed. [2021-11-20 06:10:46,616 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 06:10:46,617 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-20 06:10:46,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 06:10:46 BoogieIcfgContainer [2021-11-20 06:10:46,663 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-20 06:10:46,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 06:10:46,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 06:10:46,663 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 06:10:46,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:10:36" (3/4) ... [2021-11-20 06:10:46,666 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-20 06:10:46,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2021-11-20 06:10:46,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-20 06:10:46,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-20 06:10:46,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-20 06:10:46,672 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-20 06:10:46,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2021-11-20 06:10:46,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-20 06:10:46,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2021-11-20 06:10:46,673 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2021-11-20 06:10:46,684 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2021-11-20 06:10:46,685 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-20 06:10:46,686 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-20 06:10:46,686 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-20 06:10:46,687 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-20 06:10:46,688 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:10:46,688 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-20 06:10:46,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) [2021-11-20 06:10:46,712 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) [2021-11-20 06:10:46,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) || ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) [2021-11-20 06:10:46,713 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) [2021-11-20 06:10:46,717 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) [2021-11-20 06:10:46,719 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && !(0 == systemActive)) [2021-11-20 06:10:46,719 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && !(0 == systemActive))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && !(0 == systemActive))) || !(1 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1)) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 1 <= \result) [2021-11-20 06:10:46,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && 0 == systemActive [2021-11-20 06:10:46,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((2 <= tmp && \old(waterLevel) == waterLevel) && 2 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || 0 == systemActive) || ((2 <= tmp && 2 <= waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel))) [2021-11-20 06:10:46,720 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2021-11-20 06:10:46,721 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2021-11-20 06:10:46,721 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 2 <= waterLevel) || 0 == systemActive [2021-11-20 06:10:46,721 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \result == 1)) || 0 == systemActive) [2021-11-20 06:10:46,722 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 2 <= waterLevel) || 0 == systemActive [2021-11-20 06:10:46,722 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 <= waterLevel) || 0 == systemActive) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && \result == 0) && tmp == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) [2021-11-20 06:10:46,726 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) [2021-11-20 06:10:46,726 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (tmp == 1 && \result == 1)) || 0 == systemActive) [2021-11-20 06:10:46,778 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 06:10:46,779 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 06:10:46,779 INFO L158 Benchmark]: Toolchain (without parser) took 12005.85ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 81.7MB in the beginning and 102.4MB in the end (delta: -20.6MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,780 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 92.7MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 06:10:46,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 583.89ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 84.9MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.86ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 82.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,781 INFO L158 Benchmark]: Boogie Preprocessor took 59.90ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 80.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,782 INFO L158 Benchmark]: RCFGBuilder took 578.07ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 63.1MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,782 INFO L158 Benchmark]: TraceAbstraction took 10587.75ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 62.5MB in the beginning and 109.7MB in the end (delta: -47.2MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,783 INFO L158 Benchmark]: Witness Printer took 115.60ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 102.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 06:10:46,785 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 119.5MB. Free memory was 92.7MB in the beginning and 92.7MB in the end (delta: 29.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 583.89ms. Allocated memory is still 119.5MB. Free memory was 81.5MB in the beginning and 84.9MB in the end (delta: -3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.86ms. Allocated memory is still 119.5MB. Free memory was 84.9MB in the beginning and 82.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.90ms. Allocated memory is still 119.5MB. Free memory was 82.5MB in the beginning and 80.7MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.07ms. Allocated memory is still 119.5MB. Free memory was 80.7MB in the beginning and 63.1MB in the end (delta: 17.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10587.75ms. Allocated memory was 119.5MB in the beginning and 167.8MB in the end (delta: 48.2MB). Free memory was 62.5MB in the beginning and 109.7MB in the end (delta: -47.2MB). Peak memory consumption was 71.5MB. Max. memory is 16.1GB. * Witness Printer took 115.60ms. Allocated memory is still 167.8MB. Free memory was 109.7MB in the beginning and 102.4MB in the end (delta: 7.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * 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: 158]: 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 10 procedures, 108 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.5s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.7s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1809 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1782 mSDsluCounter, 4873 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3291 mSDsCounter, 526 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1984 IncrementalHoareTripleChecker+Invalid, 2510 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 526 mSolverCounterUnsat, 1582 mSDtfsCounter, 1984 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 753 GetRequests, 632 SyntacticMatches, 9 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=972occurred in iteration=11, InterpolantAutomatonStates: 108, 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, 12 MinimizatonAttempts, 231 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 51 LocationsWithAnnotation, 1778 PreInvPairs, 1920 NumberOfFragments, 1125 HoareAnnotationTreeSize, 1778 FomulaSimplifications, 1839 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 51 FomulaSimplificationsInter, 7521 FormulaSimplificationTreeSizeReductionInter, 2.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 1131 NumberOfCodeBlocks, 1131 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 1218 ConstructedInterpolants, 0 QuantifiedInterpolants, 2072 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1702 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 449/507 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 1 specifications checked. All of them hold - InvariantResult [Line: 991]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || (pumpRunning == \old(pumpRunning) && \result == 0)) || 0 == systemActive) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 470]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || ((pumpRunning == 0 && tmp___0 == 0) && \result == 0)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (tmp == 1 && \result == 1)) || 0 == systemActive) - InvariantResult [Line: 508]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && 0 == systemActive - InvariantResult [Line: 389]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 2 <= waterLevel) || 0 == systemActive - InvariantResult [Line: 523]: Loop Invariant Derived loop invariant: ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) || (((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) && !(0 == systemActive)) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 1012]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 165]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 <= tmp) && 1 <= \result) && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || ((2 <= tmp && \old(waterLevel) == waterLevel) && 2 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1))) && ((((((pumpRunning == 0 && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) || 0 == systemActive) || ((2 <= tmp && 2 <= waterLevel) && 2 <= \result)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 977]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(2 <= waterLevel)) || 0 == systemActive) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \result == 1)) || 0 == systemActive) - InvariantResult [Line: 117]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 356]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || !(0 == systemActive)) && (((2 <= waterLevel || 0 == systemActive) || (pumpRunning == 0 && 1 <= waterLevel)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) || (2 <= waterLevel && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 425]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) - InvariantResult [Line: 968]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && !(0 == systemActive))) || 0 == systemActive) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || (((2 <= waterLevel && \old(waterLevel) == waterLevel) && 2 <= \result) && !(0 == systemActive))) || !(1 <= \old(waterLevel)))) && ((((2 <= waterLevel && 2 <= \result) || ((pumpRunning == 0 && 1 <= waterLevel) && 1 <= \result)) || 0 == systemActive) || !(2 <= \old(waterLevel)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || \result == 1)) && ((!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) || 1 <= \result) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 1 <= waterLevel) || ((((\result == 1 && tmp == 1) && 2 <= waterLevel) && splverifierCounter == 0) && !(0 == systemActive)) - InvariantResult [Line: 1026]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && \result == 1) && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 381]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 2 <= waterLevel) || 0 == systemActive - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 936]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (((pumpRunning == \old(pumpRunning) && 1 <= waterLevel) || 0 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 489]: Loop Invariant Derived loop invariant: ((!(1 <= waterLevel) || 0 == systemActive) || ((((pumpRunning == \old(pumpRunning) && 1 <= \result) && \result == 0) && tmp == 0) && 1 <= tmp___0)) && ((!(\old(pumpRunning) == 0) || !(1 <= waterLevel)) || 0 == systemActive) - InvariantResult [Line: 1019]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 154]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(1 <= \old(waterLevel))) && (0 == systemActive || !(2 <= \old(waterLevel))) RESULT: Ultimate proved your program to be correct! [2021-11-20 06:10:46,872 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dee4b4b2-1292-442d-aae5-0c4ed5deea07/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE