./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL --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 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 04:38:32,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 04:38:32,055 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 04:38:32,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 04:38:32,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 04:38:32,122 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 04:38:32,127 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 04:38:32,133 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 04:38:32,137 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 04:38:32,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 04:38:32,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 04:38:32,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 04:38:32,152 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 04:38:32,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 04:38:32,158 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 04:38:32,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 04:38:32,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 04:38:32,168 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 04:38:32,175 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 04:38:32,178 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 04:38:32,186 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 04:38:32,188 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 04:38:32,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 04:38:32,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 04:38:32,202 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 04:38:32,203 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 04:38:32,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 04:38:32,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 04:38:32,207 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 04:38:32,209 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 04:38:32,210 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 04:38:32,211 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 04:38:32,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 04:38:32,216 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 04:38:32,218 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 04:38:32,218 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 04:38:32,219 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 04:38:32,219 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 04:38:32,220 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 04:38:32,221 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 04:38:32,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 04:38:32,223 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-19 04:38:32,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 04:38:32,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 04:38:32,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-19 04:38:32,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-19 04:38:32,285 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 04:38:32,286 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 04:38:32,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-19 04:38:32,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-19 04:38:32,287 INFO L138 SettingsManager]: * Use SBE=true [2021-11-19 04:38:32,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 04:38:32,288 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 04:38:32,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 04:38:32,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 04:38:32,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 04:38:32,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 04:38:32,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 04:38:32,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 04:38:32,290 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 04:38:32,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 04:38:32,291 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 04:38:32,291 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 04:38:32,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 04:38:32,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-19 04:38:32,292 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 04:38:32,292 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:38:32,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 04:38:32,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 04:38:32,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 04:38:32,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-19 04:38:32,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 04:38:32,294 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-19 04:38:32,294 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-19 04:38:32,295 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 04:38:32,295 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 04:38:32,295 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_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2021-11-19 04:38:32,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 04:38:32,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 04:38:32,635 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 04:38:32,637 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 04:38:32,638 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 04:38:32,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-11-19 04:38:32,736 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/data/ecc9fb84b/a2d8c46b85a8495db4b5a5623486ff1b/FLAGa5eda6018 [2021-11-19 04:38:33,405 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 04:38:33,405 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2021-11-19 04:38:33,429 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/data/ecc9fb84b/a2d8c46b85a8495db4b5a5623486ff1b/FLAGa5eda6018 [2021-11-19 04:38:33,638 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/data/ecc9fb84b/a2d8c46b85a8495db4b5a5623486ff1b [2021-11-19 04:38:33,641 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 04:38:33,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 04:38:33,651 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 04:38:33,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 04:38:33,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 04:38:33,658 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:38:33" (1/1) ... [2021-11-19 04:38:33,661 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bcf3173 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:33, skipping insertion in model container [2021-11-19 04:38:33,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 04:38:33" (1/1) ... [2021-11-19 04:38:33,674 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 04:38:33,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 04:38:33,965 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_61a0297d-62ce-48f4-825f-86a0474e09c0/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2021-11-19 04:38:34,186 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:38:34,198 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 04:38:34,214 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_61a0297d-62ce-48f4-825f-86a0474e09c0/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2021-11-19 04:38:34,326 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 04:38:34,355 INFO L208 MainTranslator]: Completed translation [2021-11-19 04:38:34,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34 WrapperNode [2021-11-19 04:38:34,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 04:38:34,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 04:38:34,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 04:38:34,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 04:38:34,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,397 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,445 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 235 [2021-11-19 04:38:34,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 04:38:34,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 04:38:34,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 04:38:34,447 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 04:38:34,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,469 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,475 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,477 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 04:38:34,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 04:38:34,482 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 04:38:34,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 04:38:34,484 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (1/1) ... [2021-11-19 04:38:34,494 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 04:38:34,511 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:38:34,536 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 04:38:34,561 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 04:38:34,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 04:38:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2021-11-19 04:38:34,591 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2021-11-19 04:38:34,591 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2021-11-19 04:38:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2021-11-19 04:38:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2021-11-19 04:38:34,592 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2021-11-19 04:38:34,592 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2021-11-19 04:38:34,593 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2021-11-19 04:38:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2021-11-19 04:38:34,593 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2021-11-19 04:38:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 04:38:34,593 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2021-11-19 04:38:34,594 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2021-11-19 04:38:34,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 04:38:34,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 04:38:34,684 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 04:38:34,687 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 04:38:35,080 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 04:38:35,091 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 04:38:35,091 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-19 04:38:35,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:38:35 BoogieIcfgContainer [2021-11-19 04:38:35,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 04:38:35,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 04:38:35,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 04:38:35,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 04:38:35,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 04:38:33" (1/3) ... [2021-11-19 04:38:35,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45df93ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:38:35, skipping insertion in model container [2021-11-19 04:38:35,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 04:38:34" (2/3) ... [2021-11-19 04:38:35,106 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45df93ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 04:38:35, skipping insertion in model container [2021-11-19 04:38:35,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:38:35" (3/3) ... [2021-11-19 04:38:35,108 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2021-11-19 04:38:35,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 04:38:35,116 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 04:38:35,183 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 04:38:35,193 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 [2021-11-19 04:38:35,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 04:38:35,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2021-11-19 04:38:35,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2021-11-19 04:38:35,229 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:35,230 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:35,230 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:35,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:35,238 INFO L85 PathProgramCache]: Analyzing trace with hash -569276447, now seen corresponding path program 1 times [2021-11-19 04:38:35,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:35,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547737439] [2021-11-19 04:38:35,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:35,252 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:35,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:35,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-11-19 04:38:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:35,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-11-19 04:38:35,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:35,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:35,626 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547737439] [2021-11-19 04:38:35,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547737439] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:35,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:35,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 04:38:35,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336311512] [2021-11-19 04:38:35,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:35,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-19 04:38:35,641 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:35,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-19 04:38:35,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:38:35,695 INFO L87 Difference]: Start difference. First operand has 84 states, 66 states have (on average 1.378787878787879) internal successors, (91), 72 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:38:35,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:35,745 INFO L93 Difference]: Finished difference Result 159 states and 216 transitions. [2021-11-19 04:38:35,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-19 04:38:35,748 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2021-11-19 04:38:35,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:35,761 INFO L225 Difference]: With dead ends: 159 [2021-11-19 04:38:35,761 INFO L226 Difference]: Without dead ends: 75 [2021-11-19 04:38:35,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-19 04:38:35,771 INFO L933 BasicCegarLoop]: 105 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, 105 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 [2021-11-19 04:38:35,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:38:35,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2021-11-19 04:38:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2021-11-19 04:38:35,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 59 states have (on average 1.305084745762712) internal successors, (77), 64 states have internal predecessors, (77), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2021-11-19 04:38:35,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 96 transitions. [2021-11-19 04:38:35,828 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 96 transitions. Word has length 32 [2021-11-19 04:38:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:35,829 INFO L470 AbstractCegarLoop]: Abstraction has 75 states and 96 transitions. [2021-11-19 04:38:35,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:38:35,830 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 96 transitions. [2021-11-19 04:38:35,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-11-19 04:38:35,834 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:35,834 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:35,835 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 04:38:35,835 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:35,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:35,836 INFO L85 PathProgramCache]: Analyzing trace with hash -292889895, now seen corresponding path program 1 times [2021-11-19 04:38:35,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:35,837 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648207854] [2021-11-19 04:38:35,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:35,838 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:35,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:35,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-19 04:38:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:35,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-19 04:38:35,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:35,951 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:35,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:35,952 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648207854] [2021-11-19 04:38:35,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648207854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:35,953 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:35,953 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:38:35,953 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793584723] [2021-11-19 04:38:35,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:35,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:38:35,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:35,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:38:35,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:38:35,957 INFO L87 Difference]: Start difference. First operand 75 states and 96 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:38:35,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:35,978 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2021-11-19 04:38:35,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:38:35,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2021-11-19 04:38:35,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:35,982 INFO L225 Difference]: With dead ends: 111 [2021-11-19 04:38:35,985 INFO L226 Difference]: Without dead ends: 66 [2021-11-19 04:38:35,986 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:38:35,988 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 17 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 145 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 [2021-11-19 04:38:35,989 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 145 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:38:35,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2021-11-19 04:38:36,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2021-11-19 04:38:36,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 53 states have (on average 1.320754716981132) internal successors, (70), 58 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2021-11-19 04:38:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 84 transitions. [2021-11-19 04:38:36,008 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 84 transitions. Word has length 33 [2021-11-19 04:38:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:36,009 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 84 transitions. [2021-11-19 04:38:36,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:38:36,009 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 84 transitions. [2021-11-19 04:38:36,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-11-19 04:38:36,011 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:36,012 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:36,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 04:38:36,012 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:36,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:36,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2081952552, now seen corresponding path program 1 times [2021-11-19 04:38:36,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:36,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241759121] [2021-11-19 04:38:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:36,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:36,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:36,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 04:38:36,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:36,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-11-19 04:38:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:36,157 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:36,157 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:36,158 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241759121] [2021-11-19 04:38:36,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241759121] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:36,158 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:36,159 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:38:36,159 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244412692] [2021-11-19 04:38:36,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:36,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:38:36,160 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:36,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:38:36,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:38:36,162 INFO L87 Difference]: Start difference. First operand 66 states and 84 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:36,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:36,380 INFO L93 Difference]: Finished difference Result 225 states and 295 transitions. [2021-11-19 04:38:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:38:36,381 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 37 [2021-11-19 04:38:36,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:36,385 INFO L225 Difference]: With dead ends: 225 [2021-11-19 04:38:36,386 INFO L226 Difference]: Without dead ends: 167 [2021-11-19 04:38:36,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:38:36,391 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 218 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:36,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 407 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:38:36,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2021-11-19 04:38:36,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 157. [2021-11-19 04:38:36,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 123 states have (on average 1.3495934959349594) internal successors, (166), 134 states have internal predecessors, (166), 19 states have call successors, (19), 14 states have call predecessors, (19), 14 states have return successors, (20), 17 states have call predecessors, (20), 19 states have call successors, (20) [2021-11-19 04:38:36,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 205 transitions. [2021-11-19 04:38:36,435 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 205 transitions. Word has length 37 [2021-11-19 04:38:36,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:36,436 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 205 transitions. [2021-11-19 04:38:36,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:36,436 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 205 transitions. [2021-11-19 04:38:36,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-11-19 04:38:36,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:36,440 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:36,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 04:38:36,440 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:36,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:36,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1830972643, now seen corresponding path program 1 times [2021-11-19 04:38:36,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:36,442 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267822232] [2021-11-19 04:38:36,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:36,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:36,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:36,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-19 04:38:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:36,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-11-19 04:38:36,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:36,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-19 04:38:36,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:36,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267822232] [2021-11-19 04:38:36,646 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267822232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:36,646 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:36,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-19 04:38:36,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599647492] [2021-11-19 04:38:36,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:36,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-19 04:38:36,651 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:36,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-19 04:38:36,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-19 04:38:36,653 INFO L87 Difference]: Start difference. First operand 157 states and 205 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:38:36,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:36,834 INFO L93 Difference]: Finished difference Result 399 states and 531 transitions. [2021-11-19 04:38:36,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-19 04:38:36,835 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2021-11-19 04:38:36,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:36,844 INFO L225 Difference]: With dead ends: 399 [2021-11-19 04:38:36,844 INFO L226 Difference]: Without dead ends: 250 [2021-11-19 04:38:36,851 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-19 04:38:36,862 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 41 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:36,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [42 Valid, 402 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 04:38:36,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-11-19 04:38:36,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 235. [2021-11-19 04:38:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 181 states have (on average 1.292817679558011) internal successors, (234), 194 states have internal predecessors, (234), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2021-11-19 04:38:36,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 298 transitions. [2021-11-19 04:38:36,964 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 298 transitions. Word has length 41 [2021-11-19 04:38:36,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:36,969 INFO L470 AbstractCegarLoop]: Abstraction has 235 states and 298 transitions. [2021-11-19 04:38:36,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2021-11-19 04:38:36,970 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 298 transitions. [2021-11-19 04:38:36,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-19 04:38:36,973 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:36,974 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:36,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 04:38:36,974 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:36,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:36,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1378984981, now seen corresponding path program 1 times [2021-11-19 04:38:36,975 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:36,975 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489022811] [2021-11-19 04:38:36,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:36,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 04:38:37,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 04:38:37,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,062 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:37,062 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:37,063 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489022811] [2021-11-19 04:38:37,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489022811] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:37,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:37,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-19 04:38:37,065 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135655102] [2021-11-19 04:38:37,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:37,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-19 04:38:37,072 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:37,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-19 04:38:37,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:38:37,074 INFO L87 Difference]: Start difference. First operand 235 states and 298 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:37,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:37,158 INFO L93 Difference]: Finished difference Result 490 states and 632 transitions. [2021-11-19 04:38:37,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 04:38:37,159 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2021-11-19 04:38:37,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:37,170 INFO L225 Difference]: With dead ends: 490 [2021-11-19 04:38:37,170 INFO L226 Difference]: Without dead ends: 263 [2021-11-19 04:38:37,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 04:38:37,180 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 42 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:37,181 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 360 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:38:37,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states. [2021-11-19 04:38:37,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 241. [2021-11-19 04:38:37,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 241 states, 187 states have (on average 1.2834224598930482) internal successors, (240), 200 states have internal predecessors, (240), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2021-11-19 04:38:37,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 304 transitions. [2021-11-19 04:38:37,232 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 304 transitions. Word has length 46 [2021-11-19 04:38:37,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:37,233 INFO L470 AbstractCegarLoop]: Abstraction has 241 states and 304 transitions. [2021-11-19 04:38:37,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:37,234 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 304 transitions. [2021-11-19 04:38:37,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-19 04:38:37,248 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:37,248 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:37,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 04:38:37,249 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:37,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:37,249 INFO L85 PathProgramCache]: Analyzing trace with hash -209362921, now seen corresponding path program 1 times [2021-11-19 04:38:37,250 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:37,250 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21083232] [2021-11-19 04:38:37,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:37,250 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:37,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 04:38:37,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 04:38:37,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:37,375 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:37,375 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21083232] [2021-11-19 04:38:37,375 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21083232] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:37,375 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:37,376 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-19 04:38:37,376 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741886163] [2021-11-19 04:38:37,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:37,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 04:38:37,377 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:37,378 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 04:38:37,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-19 04:38:37,378 INFO L87 Difference]: Start difference. First operand 241 states and 304 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:37,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:37,431 INFO L93 Difference]: Finished difference Result 506 states and 653 transitions. [2021-11-19 04:38:37,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 04:38:37,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2021-11-19 04:38:37,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:37,438 INFO L225 Difference]: With dead ends: 506 [2021-11-19 04:38:37,439 INFO L226 Difference]: Without dead ends: 273 [2021-11-19 04:38:37,440 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:38:37,442 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 27 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:37,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 259 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:38:37,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-11-19 04:38:37,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 245. [2021-11-19 04:38:37,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 191 states have (on average 1.2774869109947644) internal successors, (244), 204 states have internal predecessors, (244), 29 states have call successors, (29), 24 states have call predecessors, (29), 24 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2021-11-19 04:38:37,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 308 transitions. [2021-11-19 04:38:37,495 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 308 transitions. Word has length 46 [2021-11-19 04:38:37,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:37,496 INFO L470 AbstractCegarLoop]: Abstraction has 245 states and 308 transitions. [2021-11-19 04:38:37,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:37,497 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 308 transitions. [2021-11-19 04:38:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2021-11-19 04:38:37,499 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:37,500 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:37,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 04:38:37,501 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:37,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1898306663, now seen corresponding path program 1 times [2021-11-19 04:38:37,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:37,502 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336632283] [2021-11-19 04:38:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:37,503 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-11-19 04:38:37,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-11-19 04:38:37,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:37,642 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:37,642 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336632283] [2021-11-19 04:38:37,642 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336632283] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:37,643 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:37,643 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 04:38:37,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678357824] [2021-11-19 04:38:37,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:37,645 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:38:37,646 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:37,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:38:37,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:38:37,647 INFO L87 Difference]: Start difference. First operand 245 states and 308 transitions. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:37,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:37,705 INFO L93 Difference]: Finished difference Result 609 states and 775 transitions. [2021-11-19 04:38:37,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:38:37,706 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 46 [2021-11-19 04:38:37,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:37,712 INFO L225 Difference]: With dead ends: 609 [2021-11-19 04:38:37,712 INFO L226 Difference]: Without dead ends: 372 [2021-11-19 04:38:37,714 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 04:38:37,715 INFO L933 BasicCegarLoop]: 89 mSDtfsCounter, 39 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:37,716 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [39 Valid, 159 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:38:37,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372 states. [2021-11-19 04:38:37,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372 to 372. [2021-11-19 04:38:37,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 290 states have (on average 1.2482758620689656) internal successors, (362), 306 states have internal predecessors, (362), 46 states have call successors, (46), 38 states have call predecessors, (46), 35 states have return successors, (53), 43 states have call predecessors, (53), 46 states have call successors, (53) [2021-11-19 04:38:37,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 461 transitions. [2021-11-19 04:38:37,772 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 461 transitions. Word has length 46 [2021-11-19 04:38:37,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:37,775 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 461 transitions. [2021-11-19 04:38:37,775 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2021-11-19 04:38:37,778 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 461 transitions. [2021-11-19 04:38:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-19 04:38:37,781 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:37,781 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-11-19 04:38:37,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 04:38:37,782 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:37,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:37,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1296933517, now seen corresponding path program 1 times [2021-11-19 04:38:37,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:37,786 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724578858] [2021-11-19 04:38:37,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:37,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:37,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:37,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 04:38:37,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-11-19 04:38:38,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2021-11-19 04:38:38,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-11-19 04:38:38,016 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:38,016 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724578858] [2021-11-19 04:38:38,016 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724578858] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:38,017 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 04:38:38,017 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-19 04:38:38,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70589627] [2021-11-19 04:38:38,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:38,018 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-19 04:38:38,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:38,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-19 04:38:38,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-19 04:38:38,019 INFO L87 Difference]: Start difference. First operand 372 states and 461 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:38:38,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:38,545 INFO L93 Difference]: Finished difference Result 1215 states and 1556 transitions. [2021-11-19 04:38:38,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-11-19 04:38:38,546 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 50 [2021-11-19 04:38:38,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:38,554 INFO L225 Difference]: With dead ends: 1215 [2021-11-19 04:38:38,555 INFO L226 Difference]: Without dead ends: 978 [2021-11-19 04:38:38,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2021-11-19 04:38:38,558 INFO L933 BasicCegarLoop]: 131 mSDtfsCounter, 230 mSDsluCounter, 520 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 329 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:38,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [239 Valid, 651 Invalid, 329 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 04:38:38,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 978 states. [2021-11-19 04:38:38,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 978 to 901. [2021-11-19 04:38:38,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 707 states have (on average 1.2305516265912306) internal successors, (870), 751 states have internal predecessors, (870), 106 states have call successors, (106), 81 states have call predecessors, (106), 87 states have return successors, (132), 101 states have call predecessors, (132), 106 states have call successors, (132) [2021-11-19 04:38:38,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1108 transitions. [2021-11-19 04:38:38,645 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1108 transitions. Word has length 50 [2021-11-19 04:38:38,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:38,646 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1108 transitions. [2021-11-19 04:38:38,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2021-11-19 04:38:38,646 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1108 transitions. [2021-11-19 04:38:38,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-11-19 04:38:38,649 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:38,650 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-11-19 04:38:38,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-19 04:38:38,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:38,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:38,651 INFO L85 PathProgramCache]: Analyzing trace with hash -1580462347, now seen corresponding path program 1 times [2021-11-19 04:38:38,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:38,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963429360] [2021-11-19 04:38:38,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:38,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 04:38:38,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:38:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:38:38,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2021-11-19 04:38:38,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2021-11-19 04:38:38,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-11-19 04:38:38,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 17 proven. 7 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:38:38,863 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:38,863 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963429360] [2021-11-19 04:38:38,864 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963429360] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:38:38,864 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082881083] [2021-11-19 04:38:38,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:38,864 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:38:38,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:38:38,867 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:38:38,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 04:38:38,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:38,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-19 04:38:39,006 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:38:39,401 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 04:38:39,401 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 04:38:39,778 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-11-19 04:38:39,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082881083] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 04:38:39,779 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 04:38:39,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2021-11-19 04:38:39,780 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038642377] [2021-11-19 04:38:39,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 04:38:39,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-19 04:38:39,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:39,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-19 04:38:39,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-11-19 04:38:39,784 INFO L87 Difference]: Start difference. First operand 901 states and 1108 transitions. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2021-11-19 04:38:41,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:41,098 INFO L93 Difference]: Finished difference Result 1670 states and 2118 transitions. [2021-11-19 04:38:41,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-11-19 04:38:41,099 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) Word has length 81 [2021-11-19 04:38:41,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:41,109 INFO L225 Difference]: With dead ends: 1670 [2021-11-19 04:38:41,109 INFO L226 Difference]: Without dead ends: 898 [2021-11-19 04:38:41,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 179 SyntacticMatches, 1 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 429 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=326, Invalid=1480, Unknown=0, NotChecked=0, Total=1806 [2021-11-19 04:38:41,118 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 346 mSDsluCounter, 1006 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1179 SdHoareTripleChecker+Invalid, 919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:41,118 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [347 Valid, 1179 Invalid, 919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2021-11-19 04:38:41,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-11-19 04:38:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 803. [2021-11-19 04:38:41,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 803 states, 618 states have (on average 1.2119741100323624) internal successors, (749), 659 states have internal predecessors, (749), 100 states have call successors, (100), 84 states have call predecessors, (100), 84 states have return successors, (119), 89 states have call predecessors, (119), 100 states have call successors, (119) [2021-11-19 04:38:41,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 803 states to 803 states and 968 transitions. [2021-11-19 04:38:41,243 INFO L78 Accepts]: Start accepts. Automaton has 803 states and 968 transitions. Word has length 81 [2021-11-19 04:38:41,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:41,245 INFO L470 AbstractCegarLoop]: Abstraction has 803 states and 968 transitions. [2021-11-19 04:38:41,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 11 states have internal predecessors, (101), 5 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (13), 7 states have call predecessors, (13), 5 states have call successors, (13) [2021-11-19 04:38:41,245 INFO L276 IsEmpty]: Start isEmpty. Operand 803 states and 968 transitions. [2021-11-19 04:38:41,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2021-11-19 04:38:41,255 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 04:38:41,255 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-11-19 04:38:41,290 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-19 04:38:41,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:38:41,469 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 04:38:41,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 04:38:41,470 INFO L85 PathProgramCache]: Analyzing trace with hash -158765002, now seen corresponding path program 1 times [2021-11-19 04:38:41,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-19 04:38:41,471 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499442450] [2021-11-19 04:38:41,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:41,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 04:38:41,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 04:38:41,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-11-19 04:38:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:38:41,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-11-19 04:38:41,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:38:41,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 04:38:41,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-11-19 04:38:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-19 04:38:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-11-19 04:38:41,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2021-11-19 04:38:41,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-11-19 04:38:41,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,609 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2021-11-19 04:38:41,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-19 04:38:41,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499442450] [2021-11-19 04:38:41,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499442450] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 04:38:41,610 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [109629] [2021-11-19 04:38:41,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 04:38:41,611 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:38:41,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 [2021-11-19 04:38:41,613 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 04:38:41,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 04:38:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 04:38:41,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 04:38:41,794 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 04:38:42,100 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-11-19 04:38:42,100 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-19 04:38:42,100 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [109629] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 04:38:42,101 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-11-19 04:38:42,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2021-11-19 04:38:42,101 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256552623] [2021-11-19 04:38:42,101 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 04:38:42,102 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 04:38:42,102 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-19 04:38:42,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 04:38:42,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:38:42,103 INFO L87 Difference]: Start difference. First operand 803 states and 968 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 04:38:42,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 04:38:42,150 INFO L93 Difference]: Finished difference Result 978 states and 1187 transitions. [2021-11-19 04:38:42,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 04:38:42,151 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 150 [2021-11-19 04:38:42,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 04:38:42,152 INFO L225 Difference]: With dead ends: 978 [2021-11-19 04:38:42,152 INFO L226 Difference]: Without dead ends: 0 [2021-11-19 04:38:42,156 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-19 04:38:42,157 INFO L933 BasicCegarLoop]: 118 mSDtfsCounter, 36 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 195 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 04:38:42,158 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 195 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 04:38:42,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-11-19 04:38:42,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-11-19 04:38:42,160 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) [2021-11-19 04:38:42,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-11-19 04:38:42,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 150 [2021-11-19 04:38:42,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 04:38:42,161 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-11-19 04:38:42,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 3 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2021-11-19 04:38:42,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-11-19 04:38:42,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-11-19 04:38:42,164 INFO L764 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 04:38:42,212 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 04:38:42,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 04:38:42,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-11-19 04:38:46,482 INFO L858 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 768 774) no Hoare annotation was computed. [2021-11-19 04:38:46,482 INFO L861 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 768 774) the Hoare annotation is: true [2021-11-19 04:38:46,483 INFO L858 garLoopResultBuilder]: For program point L669-1(lines 665 676) no Hoare annotation was computed. [2021-11-19 04:38:46,483 INFO L861 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 665 676) the Hoare annotation is: true [2021-11-19 04:38:46,483 INFO L858 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 665 676) no Hoare annotation was computed. [2021-11-19 04:38:46,483 INFO L854 garLoopResultBuilder]: At program point L795(line 795) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 .cse4 .cse2 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,484 INFO L854 garLoopResultBuilder]: At program point L795-1(lines 776 800) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (<= 1 ~pumpRunning~0)) (.cse4 (= ~waterLevel~0 1)) (.cse10 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse2 .cse3 .cse4)) (let ((.cse6 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 .cse1 .cse5 (and .cse2 .cse3 .cse6) (and .cse7 .cse6) .cse8)) (or .cse1 .cse9 (and .cse7 .cse10) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse1 .cse9 .cse5 .cse8 (and .cse7 .cse4 .cse10)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,484 INFO L858 garLoopResultBuilder]: For program point L882(lines 882 886) no Hoare annotation was computed. [2021-11-19 04:38:46,484 INFO L858 garLoopResultBuilder]: For program point L882-2(lines 882 886) no Hoare annotation was computed. [2021-11-19 04:38:46,485 INFO L858 garLoopResultBuilder]: For program point L940(lines 940 946) no Hoare annotation was computed. [2021-11-19 04:38:46,485 INFO L858 garLoopResultBuilder]: For program point timeShiftFINAL(lines 741 767) no Hoare annotation was computed. [2021-11-19 04:38:46,485 INFO L854 garLoopResultBuilder]: At program point L924(lines 917 926) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse3 .cse8)) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (and (<= 1 ~pumpRunning~0) .cse8 (<= 1 ~switchedOnBeforeTS~0)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse3 (= ~waterLevel~0 1))) (or .cse2 .cse4 .cse5 .cse6 .cse7) (or .cse0 .cse1 .cse2 .cse5 .cse7) (or .cse2 .cse4 .cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|)))))) [2021-11-19 04:38:46,485 INFO L858 garLoopResultBuilder]: For program point L722(lines 722 728) no Hoare annotation was computed. [2021-11-19 04:38:46,486 INFO L858 garLoopResultBuilder]: For program point L755-1(lines 755 761) no Hoare annotation was computed. [2021-11-19 04:38:46,486 INFO L858 garLoopResultBuilder]: For program point L784(lines 784 792) no Hoare annotation was computed. [2021-11-19 04:38:46,486 INFO L858 garLoopResultBuilder]: For program point L780(lines 780 797) no Hoare annotation was computed. [2021-11-19 04:38:46,486 INFO L854 garLoopResultBuilder]: At program point L714(lines 709 717) the Hoare annotation is: (let ((.cse10 (= 1 ~systemActive~0))) (let ((.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse9 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse3 (not (= 0 ~systemActive~0))) (.cse4 (not .cse10)) (.cse12 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (<= 1 ~pumpRunning~0)) (.cse11 (= ~waterLevel~0 1)) (.cse13 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or .cse0 .cse4 .cse5 (and .cse6 .cse7 .cse2) .cse8 (and .cse1 .cse7 .cse9 .cse10 .cse2)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse4 (and .cse1 .cse9 .cse10 .cse11)) (or .cse0 .cse7 .cse5 .cse8 .cse3) (or .cse4 .cse12 (and .cse6 .cse13) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse4 .cse12 .cse5 .cse8 (and .cse6 .cse11 .cse13))))) [2021-11-19 04:38:46,487 INFO L854 garLoopResultBuilder]: At program point L937(line 937) the Hoare annotation is: (let ((.cse4 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= 0 ~systemActive~0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (<= 1 ~pumpRunning~0)) (.cse6 (= ~waterLevel~0 1)) (.cse9 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 (and .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse5) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse4 (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse6)) (or .cse0 .cse2 .cse3 .cse5) (or .cse1 .cse7 (and .cse8 .cse9) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse1 .cse7 .cse2 .cse3 (and .cse8 .cse6 .cse9)))) [2021-11-19 04:38:46,487 INFO L858 garLoopResultBuilder]: For program point L937-1(line 937) no Hoare annotation was computed. [2021-11-19 04:38:46,487 INFO L854 garLoopResultBuilder]: At program point L888(lines 873 891) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 (= |timeShift_isHighWaterLevel_#res#1| 0) (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 0) (= ~waterLevel~0 1))) (or .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse4 .cse5) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,487 INFO L854 garLoopResultBuilder]: At program point L727(lines 718 731) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (and .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse0 .cse1 .cse4 .cse5) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse3 (= ~waterLevel~0 1))) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,488 INFO L858 garLoopResultBuilder]: For program point L54(line 54) no Hoare annotation was computed. [2021-11-19 04:38:46,488 INFO L858 garLoopResultBuilder]: For program point L748(lines 748 754) no Hoare annotation was computed. [2021-11-19 04:38:46,488 INFO L858 garLoopResultBuilder]: For program point L748-2(lines 744 766) no Hoare annotation was computed. [2021-11-19 04:38:46,488 INFO L854 garLoopResultBuilder]: At program point L806(lines 801 808) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 .cse0 .cse3 (and (<= 1 ~pumpRunning~0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,488 INFO L858 garLoopResultBuilder]: For program point L645(lines 645 649) no Hoare annotation was computed. [2021-11-19 04:38:46,488 INFO L854 garLoopResultBuilder]: At program point L645-2(lines 641 652) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse2 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (<= 1 ~pumpRunning~0)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse4 (and .cse5 .cse6) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 .cse4 .cse2 .cse3 (and .cse5 (= ~waterLevel~0 1) .cse6)) (or .cse0 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,489 INFO L854 garLoopResultBuilder]: At program point L922(line 922) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (and .cse0 .cse1 .cse9)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse9))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse4 .cse2 .cse3 .cse5 .cse6) (or .cse4 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse7 .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse7 .cse5 .cse6 .cse8)))) [2021-11-19 04:38:46,489 INFO L858 garLoopResultBuilder]: For program point L922-1(line 922) no Hoare annotation was computed. [2021-11-19 04:38:46,489 INFO L854 garLoopResultBuilder]: At program point L55(lines 50 57) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (< 1 |old(~waterLevel~0)|))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 .cse0 .cse3 .cse4) (or .cse0 .cse1 .cse3 .cse4) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,489 INFO L854 garLoopResultBuilder]: At program point L790(line 790) the Hoare annotation is: (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse2 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse3 .cse4 (= ~waterLevel~0 1))) (or .cse0 .cse1 .cse5 .cse6) (or .cse2 .cse0 .cse5 (and .cse3 .cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse6) (or .cse2 (not (= 0 ~systemActive~0))))) [2021-11-19 04:38:46,489 INFO L854 garLoopResultBuilder]: At program point timeShiftENTRY(lines 741 767) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse4 (and .cse0 .cse1 .cse9)) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 1 ~systemActive~0))) (.cse7 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (< 1 |old(~waterLevel~0)|))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse9))) (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) .cse2 (not (= |old(~waterLevel~0)| 1)) .cse3) (or .cse4 .cse2 .cse3 .cse5 .cse6) (or .cse4 .cse2 (not (= 0 ~systemActive~0))) (or .cse3 .cse7 .cse8 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse7 .cse5 .cse6 .cse8)))) [2021-11-19 04:38:46,489 INFO L858 garLoopResultBuilder]: For program point L939(lines 939 949) no Hoare annotation was computed. [2021-11-19 04:38:46,490 INFO L858 garLoopResultBuilder]: For program point timeShiftEXIT(lines 741 767) no Hoare annotation was computed. [2021-11-19 04:38:46,490 INFO L858 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2021-11-19 04:38:46,490 INFO L858 garLoopResultBuilder]: For program point L935(lines 935 952) no Hoare annotation was computed. [2021-11-19 04:38:46,490 INFO L854 garLoopResultBuilder]: At program point L935-1(lines 927 955) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0))) (let ((.cse5 (= 2 |timeShift_getWaterLevel_#res#1|)) (.cse8 (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (.cse3 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse6 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not .cse7)) (.cse12 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (not (< 1 |old(~waterLevel~0)|))) (.cse11 (not (<= |old(~waterLevel~0)| 2))) (.cse10 (<= 1 ~pumpRunning~0)) (.cse13 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 (and .cse1 .cse2) .cse3) (or .cse0 .cse4 (and .cse1 .cse5 .cse6 .cse7 .cse8 .cse2) .cse9 (and .cse10 .cse5 .cse8 .cse2) .cse11) (or .cse0 (and .cse5 .cse8) .cse9 .cse11 .cse3) (or .cse4 .cse12 (and .cse10 .cse13) (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse1 .cse6 .cse7 .cse2) (not (= |old(~waterLevel~0)| 1)) .cse4) (or .cse4 .cse12 .cse9 .cse11 (and .cse10 (= ~waterLevel~0 1) .cse13))))) [2021-11-19 04:38:46,490 INFO L858 garLoopResultBuilder]: For program point cleanupEXIT(lines 61 90) no Hoare annotation was computed. [2021-11-19 04:38:46,490 INFO L861 garLoopResultBuilder]: At program point cleanupENTRY(lines 61 90) the Hoare annotation is: true [2021-11-19 04:38:46,490 INFO L861 garLoopResultBuilder]: At program point L86(lines 61 90) the Hoare annotation is: true [2021-11-19 04:38:46,490 INFO L858 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2021-11-19 04:38:46,491 INFO L858 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2021-11-19 04:38:46,491 INFO L861 garLoopResultBuilder]: At program point L75-1(lines 75 79) the Hoare annotation is: true [2021-11-19 04:38:46,491 INFO L858 garLoopResultBuilder]: For program point L72(line 72) no Hoare annotation was computed. [2021-11-19 04:38:46,491 INFO L861 garLoopResultBuilder]: At program point L71-2(lines 71 85) the Hoare annotation is: true [2021-11-19 04:38:46,491 INFO L861 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2021-11-19 04:38:46,491 INFO L858 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2021-11-19 04:38:46,491 INFO L854 garLoopResultBuilder]: At program point L122(lines 118 124) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-19 04:38:46,491 INFO L858 garLoopResultBuilder]: For program point L151(lines 151 158) no Hoare annotation was computed. [2021-11-19 04:38:46,491 INFO L858 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2021-11-19 04:38:46,491 INFO L858 garLoopResultBuilder]: For program point L151-2(lines 151 158) no Hoare annotation was computed. [2021-11-19 04:38:46,492 INFO L858 garLoopResultBuilder]: For program point L597-1(lines 597 603) no Hoare annotation was computed. [2021-11-19 04:38:46,492 INFO L854 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-11-19 04:38:46,492 INFO L854 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-11-19 04:38:46,492 INFO L861 garLoopResultBuilder]: At program point L135(lines 127 137) the Hoare annotation is: true [2021-11-19 04:38:46,492 INFO L861 garLoopResultBuilder]: At program point L160(lines 141 163) the Hoare annotation is: true [2021-11-19 04:38:46,492 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-11-19 04:38:46,493 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-11-19 04:38:46,493 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-11-19 04:38:46,493 INFO L854 garLoopResultBuilder]: At program point L561(lines 556 564) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-19 04:38:46,493 INFO L854 garLoopResultBuilder]: At program point L553(lines 549 555) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-19 04:38:46,493 INFO L854 garLoopResultBuilder]: At program point L904(lines 892 906) 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) (= 0 ~systemActive~0)) [2021-11-19 04:38:46,493 INFO L858 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2021-11-19 04:38:46,493 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-11-19 04:38:46,494 INFO L858 garLoopResultBuilder]: For program point L896(lines 896 902) no Hoare annotation was computed. [2021-11-19 04:38:46,494 INFO L858 garLoopResultBuilder]: For program point L607(lines 607 620) no Hoare annotation was computed. [2021-11-19 04:38:46,494 INFO L858 garLoopResultBuilder]: For program point L896-2(lines 896 902) no Hoare annotation was computed. [2021-11-19 04:38:46,494 INFO L854 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-11-19 04:38:46,494 INFO L861 garLoopResultBuilder]: At program point L628(lines 567 632) the Hoare annotation is: true [2021-11-19 04:38:46,495 INFO L854 garLoopResultBuilder]: At program point L814(lines 809 816) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| 1)) (.cse2 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (< 1 ~waterLevel~0) .cse3 (<= ~waterLevel~0 2)) (and (not (= ~switchedOnBeforeTS~0 0)) .cse0 .cse1 .cse2 .cse3))) [2021-11-19 04:38:46,495 INFO L858 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2021-11-19 04:38:46,495 INFO L858 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2021-11-19 04:38:46,495 INFO L858 garLoopResultBuilder]: For program point L579(lines 579 583) no Hoare annotation was computed. [2021-11-19 04:38:46,496 INFO L854 garLoopResultBuilder]: At program point L546(lines 542 548) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-19 04:38:46,496 INFO L854 garLoopResultBuilder]: At program point L914(lines 909 916) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2021-11-19 04:38:46,496 INFO L854 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2021-11-19 04:38:46,496 INFO L858 garLoopResultBuilder]: For program point L613(lines 613 619) no Hoare annotation was computed. [2021-11-19 04:38:46,496 INFO L854 garLoopResultBuilder]: At program point L613-2(lines 607 620) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse5 (< 1 ~waterLevel~0)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse4 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse6 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (<= 1 ~switchedOnBeforeTS~0)) (and .cse0 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6) (and .cse7 .cse1 .cse2 .cse3 .cse4 (= ~waterLevel~0 1)) (and .cse7 (= |ULTIMATE.start_valid_product_#res#1| 1) .cse1 .cse4 (= 0 ~systemActive~0)) (and .cse7 .cse1 .cse5 .cse2 .cse3 .cse4 .cse6))) [2021-11-19 04:38:46,497 INFO L858 garLoopResultBuilder]: For program point L657-1(lines 653 664) no Hoare annotation was computed. [2021-11-19 04:38:46,497 INFO L858 garLoopResultBuilder]: For program point waterRiseEXIT(lines 653 664) no Hoare annotation was computed. [2021-11-19 04:38:46,497 INFO L854 garLoopResultBuilder]: At program point waterRiseENTRY(lines 653 664) the Hoare annotation is: (let ((.cse3 (not (<= 1 ~pumpRunning~0))) (.cse0 (not (= ~pumpRunning~0 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (< 1 |old(~waterLevel~0)|))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (not (<= |old(~waterLevel~0)| 2)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse2 (= ~waterLevel~0 1)) (or .cse2 .cse3 .cse1 (not (<= 1 ~switchedOnBeforeTS~0))) (or .cse2 .cse4 .cse3 .cse1 .cse5) (or .cse0 .cse2 .cse4 .cse1 .cse5))) [2021-11-19 04:38:46,497 INFO L858 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 828 836) no Hoare annotation was computed. [2021-11-19 04:38:46,498 INFO L861 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 828 836) the Hoare annotation is: true [2021-11-19 04:38:46,498 INFO L858 garLoopResultBuilder]: For program point isPumpRunningFINAL(lines 828 836) no Hoare annotation was computed. [2021-11-19 04:38:46,502 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 04:38:46,504 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 04:38:46,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 04:38:46 BoogieIcfgContainer [2021-11-19 04:38:46,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 04:38:46,552 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 04:38:46,552 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 04:38:46,552 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 04:38:46,553 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 04:38:35" (3/4) ... [2021-11-19 04:38:46,556 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-11-19 04:38:46,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2021-11-19 04:38:46,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2021-11-19 04:38:46,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2021-11-19 04:38:46,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2021-11-19 04:38:46,565 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2021-11-19 04:38:46,566 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2021-11-19 04:38:46,576 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2021-11-19 04:38:46,577 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2021-11-19 04:38:46,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-11-19 04:38:46,578 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-11-19 04:38:46,579 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-11-19 04:38:46,580 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 04:38:46,581 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-11-19 04:38:46,610 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-11-19 04:38:46,611 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-11-19 04:38:46,611 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2021-11-19 04:38:46,612 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((1 <= pumpRunning && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) || ((((((1 <= pumpRunning && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || (((((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive)) || ((((((pumpRunning == 0 && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) [2021-11-19 04:38:46,613 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) [2021-11-19 04:38:46,614 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-19 04:38:46,614 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(1 < \old(waterLevel))) || (((1 <= pumpRunning && 2 == \result) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (2 == \result && tmp == 2)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2021-11-19 04:38:46,615 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-19 04:38:46,615 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-19 04:38:46,616 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive [2021-11-19 04:38:46,616 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && 1 < waterLevel) && splverifierCounter == 0) && waterLevel <= 2) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \result == 1) && tmp == 1) && splverifierCounter == 0) [2021-11-19 04:38:46,616 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || 2 == \result) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) [2021-11-19 04:38:46,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && waterLevel == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-19 04:38:46,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-19 04:38:46,617 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2021-11-19 04:38:46,647 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/witness.graphml [2021-11-19 04:38:46,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 04:38:46,648 INFO L158 Benchmark]: Toolchain (without parser) took 13004.88ms. Allocated memory was 125.8MB in the beginning and 207.6MB in the end (delta: 81.8MB). Free memory was 89.2MB in the beginning and 94.2MB in the end (delta: -5.0MB). Peak memory consumption was 77.7MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,648 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 97.7MB in the beginning and 97.6MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 04:38:46,649 INFO L158 Benchmark]: CACSL2BoogieTranslator took 705.48ms. Allocated memory is still 125.8MB. Free memory was 89.1MB in the beginning and 92.3MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,649 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.15ms. Allocated memory is still 125.8MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,650 INFO L158 Benchmark]: Boogie Preprocessor took 34.66ms. Allocated memory is still 125.8MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,651 INFO L158 Benchmark]: RCFGBuilder took 613.86ms. Allocated memory is still 125.8MB. Free memory was 88.9MB in the beginning and 72.9MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,651 INFO L158 Benchmark]: TraceAbstraction took 11452.76ms. Allocated memory was 125.8MB in the beginning and 207.6MB in the end (delta: 81.8MB). Free memory was 72.9MB in the beginning and 100.5MB in the end (delta: -27.6MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,652 INFO L158 Benchmark]: Witness Printer took 95.36ms. Allocated memory is still 207.6MB. Free memory was 100.5MB in the beginning and 94.2MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 04:38:46,654 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 125.8MB. Free memory was 97.7MB in the beginning and 97.6MB in the end (delta: 28.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 705.48ms. Allocated memory is still 125.8MB. Free memory was 89.1MB in the beginning and 92.3MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.15ms. Allocated memory is still 125.8MB. Free memory was 92.3MB in the beginning and 90.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.66ms. Allocated memory is still 125.8MB. Free memory was 90.2MB in the beginning and 88.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 613.86ms. Allocated memory is still 125.8MB. Free memory was 88.9MB in the beginning and 72.9MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 11452.76ms. Allocated memory was 125.8MB in the beginning and 207.6MB in the end (delta: 81.8MB). Free memory was 72.9MB in the beginning and 100.5MB in the end (delta: -27.6MB). Peak memory consumption was 103.7MB. Max. memory is 16.1GB. * Witness Printer took 95.36ms. Allocated memory is still 207.6MB. Free memory was 100.5MB in the beginning and 94.2MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. 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: 54]: 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 7 procedures, 84 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 10, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1012 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 996 mSDsluCounter, 3862 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2774 mSDsCounter, 289 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1166 IncrementalHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 289 mSolverCounterUnsat, 1088 mSDtfsCounter, 1166 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 481 GetRequests, 398 SyntacticMatches, 2 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=901occurred in iteration=8, InterpolantAutomatonStates: 84, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 247 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 38 LocationsWithAnnotation, 1306 PreInvPairs, 1410 NumberOfFragments, 2101 HoareAnnotationTreeSize, 1306 FomulaSimplifications, 807 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 38 FomulaSimplificationsInter, 5519 FormulaSimplificationTreeSizeReductionInter, 3.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 793 NumberOfCodeBlocks, 793 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 861 ConstructedInterpolants, 0 QuantifiedInterpolants, 1583 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1041 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 13 InterpolantComputations, 9 PerfectInterpolantSequences, 430/453 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: 927]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(1 < \old(waterLevel))) || (((1 <= pumpRunning && 2 == \result) && tmp == 2) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (2 == \result && tmp == 2)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 542]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 809]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \result == 1) && tmp == 1) && 1 < waterLevel) && splverifierCounter == 0) && waterLevel <= 2) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && \result == 1) && tmp == 1) && splverifierCounter == 0) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 709]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && 2 == \result) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || ((((pumpRunning == 0 && 2 == \result) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && tmp == 0) && 1 == systemActive) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || 2 == \result) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || !(0 == systemActive))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS)) - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || ((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel)) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 892]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive - InvariantResult [Line: 801]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || (1 <= pumpRunning && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 718]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && waterLevel == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: ((((((((1 <= pumpRunning && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) || ((((((1 <= pumpRunning && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2)) || (((((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel == 1)) || ((((pumpRunning == 0 && \result == 1) && tmp == 1) && splverifierCounter == 0) && 0 == systemActive)) || ((((((pumpRunning == 0 && tmp == 1) && 1 < waterLevel) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 917]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(\old(waterLevel) <= 2))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || ((1 <= pumpRunning && \old(waterLevel) == waterLevel) && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 641]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (1 <= pumpRunning && 1 <= switchedOnBeforeTS)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2)) || ((1 <= pumpRunning && waterLevel == 1) && 1 <= switchedOnBeforeTS))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 873]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 <= \old(switchedOnBeforeTS))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (((pumpRunning == 0 && \result == 0) && tmp___0 == 0) && waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(1 < \old(waterLevel))) || !(\old(waterLevel) <= 2))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2021-11-19 04:38:46,728 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_61a0297d-62ce-48f4-825f-86a0474e09c0/bin/uautomizer-ZXIjhQolGL/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