./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9 --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 19:49:42,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:49:42,210 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:49:42,243 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:49:42,244 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:49:42,248 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:49:42,251 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:49:42,255 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:49:42,261 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:49:42,268 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:49:42,270 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:49:42,272 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:49:42,274 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:49:42,276 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:49:42,279 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:49:42,281 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:49:42,283 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:49:42,284 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:49:42,286 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:49:42,294 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:49:42,296 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:49:42,299 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:49:42,300 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:49:42,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:49:42,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:49:42,308 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:49:42,308 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:49:42,311 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:49:42,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:49:42,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:49:42,314 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:49:42,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:49:42,317 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:49:42,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:49:42,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:49:42,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:49:42,322 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:49:42,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:49:42,323 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:49:42,324 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:49:42,325 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:49:42,326 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 19:49:42,368 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:49:42,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:49:42,369 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:49:42,369 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:49:42,370 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:49:42,370 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:49:42,370 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:49:42,371 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:49:42,371 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:49:42,371 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:49:42,371 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:49:42,372 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:49:42,372 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:49:42,372 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:49:42,373 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:49:42,373 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:49:42,373 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:49:42,373 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:49:42,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:49:42,375 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:49:42,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:49:42,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:49:42,375 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:49:42,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:49:42,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:49:42,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:49:42,377 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:49:42,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:49:42,377 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:49:42,377 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:49:42,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:49:42,378 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:49:42,378 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:49:42,379 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:49:42,379 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:49:42,379 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:49:42,379 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:49:42,380 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:49:42,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:49:42,380 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:49:42,380 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:49:42,381 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_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2022-11-20 19:49:42,741 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:49:42,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:49:42,787 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:49:42,788 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:49:42,789 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:49:42,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-20 19:49:45,937 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:49:46,295 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:49:46,303 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-20 19:49:46,319 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/data/6e3436ff5/8ceccea63e9341c89248c8cb6c446a13/FLAGd39995f5f [2022-11-20 19:49:46,335 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/data/6e3436ff5/8ceccea63e9341c89248c8cb6c446a13 [2022-11-20 19:49:46,337 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:49:46,339 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:49:46,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:49:46,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:49:46,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:49:46,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:46,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ad6bb7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46, skipping insertion in model container [2022-11-20 19:49:46,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:46,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:49:46,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:49:46,667 WARN L237 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_33af1ad4-c561-4279-a7a1-4198bd72db63/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-20 19:49:46,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:49:46,817 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:49:46,859 WARN L237 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_33af1ad4-c561-4279-a7a1-4198bd72db63/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-20 19:49:46,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:49:46,964 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:49:46,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46 WrapperNode [2022-11-20 19:49:46,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:49:46,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:49:46,966 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:49:46,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:49:46,974 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:46,996 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,039 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 198 [2022-11-20 19:49:47,040 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:49:47,040 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:49:47,041 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:49:47,041 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:49:47,051 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,067 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,071 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,091 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,094 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:49:47,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:49:47,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:49:47,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:49:47,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (1/1) ... [2022-11-20 19:49:47,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:49:47,132 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:49:47,148 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:49:47,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:49:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:49:47,194 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 19:49:47,194 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 19:49:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 19:49:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 19:49:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 19:49:47,195 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 19:49:47,195 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 19:49:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 19:49:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-20 19:49:47,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-20 19:49:47,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 19:49:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 19:49:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 19:49:47,197 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:49:47,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:49:47,314 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:49:47,316 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:49:47,649 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:49:47,784 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:49:47,785 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 19:49:47,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:49:47 BoogieIcfgContainer [2022-11-20 19:49:47,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:49:47,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:49:47,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:49:47,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:49:47,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:49:46" (1/3) ... [2022-11-20 19:49:47,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac8ba48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:49:47, skipping insertion in model container [2022-11-20 19:49:47,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:49:46" (2/3) ... [2022-11-20 19:49:47,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac8ba48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:49:47, skipping insertion in model container [2022-11-20 19:49:47,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:49:47" (3/3) ... [2022-11-20 19:49:47,798 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2022-11-20 19:49:47,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:49:47,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:49:47,884 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:49:47,891 INFO L357 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=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@32e6bb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:49:47,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:49:47,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 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) [2022-11-20 19:49:47,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-20 19:49:47,908 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:49:47,909 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:49:47,910 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:49:47,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:49:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash -388126214, now seen corresponding path program 1 times [2022-11-20 19:49:47,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:49:47,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021450582] [2022-11-20 19:49:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:49:47,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:49:48,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:49:48,195 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 19:49:48,196 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:49:48,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021450582] [2022-11-20 19:49:48,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021450582] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:49:48,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:49:48,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 19:49:48,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857470312] [2022-11-20 19:49:48,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:49:48,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 19:49:48,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:49:48,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 19:49:48,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:49:48,267 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 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 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-11-20 19:49:48,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:49:48,386 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-20 19:49:48,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 19:49:48,392 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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 21 [2022-11-20 19:49:48,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:49:48,401 INFO L225 Difference]: With dead ends: 100 [2022-11-20 19:49:48,402 INFO L226 Difference]: Without dead ends: 46 [2022-11-20 19:49:48,408 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:49:48,412 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:49:48,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:49:48,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-20 19:49:48,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-20 19:49:48,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 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) [2022-11-20 19:49:48,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-20 19:49:48,475 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-20 19:49:48,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:49:48,477 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-20 19:49:48,477 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 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) [2022-11-20 19:49:48,477 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-20 19:49:48,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 19:49:48,481 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:49:48,481 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:49:48,482 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 19:49:48,482 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:49:48,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:49:48,483 INFO L85 PathProgramCache]: Analyzing trace with hash 1059750746, now seen corresponding path program 1 times [2022-11-20 19:49:48,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:49:48,484 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955461549] [2022-11-20 19:49:48,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:49:48,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:49:48,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:49:48,807 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 19:49:48,808 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:49:48,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955461549] [2022-11-20 19:49:48,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955461549] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:49:48,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:49:48,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 19:49:48,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063631437] [2022-11-20 19:49:48,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:49:48,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 19:49:48,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:49:48,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 19:49:48,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-20 19:49:48,812 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2022-11-20 19:49:49,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:49:49,633 INFO L93 Difference]: Finished difference Result 195 states and 300 transitions. [2022-11-20 19:49:49,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-20 19:49:49,634 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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 24 [2022-11-20 19:49:49,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:49:49,637 INFO L225 Difference]: With dead ends: 195 [2022-11-20 19:49:49,637 INFO L226 Difference]: Without dead ends: 109 [2022-11-20 19:49:49,639 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-20 19:49:49,640 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 123 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-20 19:49:49,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 438 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-20 19:49:49,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-20 19:49:49,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2022-11-20 19:49:49,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 76 states have internal predecessors, (82), 24 states have call successors, (24), 16 states have call predecessors, (24), 13 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39) [2022-11-20 19:49:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2022-11-20 19:49:49,678 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 24 [2022-11-20 19:49:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:49:49,678 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2022-11-20 19:49:49,679 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 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) [2022-11-20 19:49:49,679 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2022-11-20 19:49:49,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-20 19:49:49,681 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:49:49,681 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 19:49:49,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 19:49:49,681 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:49:49,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:49:49,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2078951607, now seen corresponding path program 1 times [2022-11-20 19:49:49,682 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:49:49,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982328068] [2022-11-20 19:49:49,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:49:49,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:49:49,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:49:50,289 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 19:49:50,290 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:49:50,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982328068] [2022-11-20 19:49:50,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982328068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:49:50,292 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:49:50,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 19:49:50,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268426591] [2022-11-20 19:49:50,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:49:50,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 19:49:50,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:49:50,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 19:49:50,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 19:49:50,297 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-11-20 19:49:50,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:49:50,560 INFO L93 Difference]: Finished difference Result 305 states and 443 transitions. [2022-11-20 19:49:50,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 19:49:50,562 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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 27 [2022-11-20 19:49:50,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:49:50,577 INFO L225 Difference]: With dead ends: 305 [2022-11-20 19:49:50,580 INFO L226 Difference]: Without dead ends: 183 [2022-11-20 19:49:50,583 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 19:49:50,588 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 19:49:50,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 210 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 19:49:50,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-20 19:49:50,654 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 148. [2022-11-20 19:49:50,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.21875) internal successors, (117), 107 states have internal predecessors, (117), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2022-11-20 19:49:50,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-20 19:49:50,658 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 27 [2022-11-20 19:49:50,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:49:50,658 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-20 19:49:50,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2022-11-20 19:49:50,659 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-20 19:49:50,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-20 19:49:50,661 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:49:50,661 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-20 19:49:50,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 19:49:50,662 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:49:50,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:49:50,662 INFO L85 PathProgramCache]: Analyzing trace with hash 2067722784, now seen corresponding path program 1 times [2022-11-20 19:49:50,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:49:50,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509887684] [2022-11-20 19:49:50,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:49:50,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:49:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:49:50,926 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-20 19:49:50,926 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:49:50,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509887684] [2022-11-20 19:49:50,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509887684] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:49:50,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:49:50,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-20 19:49:50,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539944894] [2022-11-20 19:49:50,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:49:50,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 19:49:50,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:49:50,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 19:49:50,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 19:49:50,929 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-11-20 19:49:51,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:49:51,489 INFO L93 Difference]: Finished difference Result 405 states and 615 transitions. [2022-11-20 19:49:51,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-20 19:49:51,489 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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 30 [2022-11-20 19:49:51,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:49:51,491 INFO L225 Difference]: With dead ends: 405 [2022-11-20 19:49:51,492 INFO L226 Difference]: Without dead ends: 155 [2022-11-20 19:49:51,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-20 19:49:51,495 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 169 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 19:49:51,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 361 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-20 19:49:51,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-20 19:49:51,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 148. [2022-11-20 19:49:51,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 107 states have internal predecessors, (116), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2022-11-20 19:49:51,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2022-11-20 19:49:51,540 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 30 [2022-11-20 19:49:51,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:49:51,544 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2022-11-20 19:49:51,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 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) [2022-11-20 19:49:51,545 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2022-11-20 19:49:51,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-20 19:49:51,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:49:51,549 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:49:51,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 19:49:51,550 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:49:51,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:49:51,551 INFO L85 PathProgramCache]: Analyzing trace with hash 795708959, now seen corresponding path program 1 times [2022-11-20 19:49:51,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:49:51,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85063071] [2022-11-20 19:49:51,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:49:51,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:49:51,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:49:51,841 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 19:49:51,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:49:51,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85063071] [2022-11-20 19:49:51,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85063071] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 19:49:51,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993692436] [2022-11-20 19:49:51,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:49:51,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:49:51,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:49:51,850 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:49:51,876 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 19:49:51,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:49:51,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-20 19:49:52,007 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:49:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:49:52,248 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 19:49:52,724 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-20 19:49:52,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993692436] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 19:49:52,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1418405042] [2022-11-20 19:49:52,744 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-20 19:49:52,745 INFO L166 IcfgInterpreter]: Building call graph [2022-11-20 19:49:52,748 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-20 19:49:52,754 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-20 19:49:52,755 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-20 19:49:55,214 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 57 for LOIs [2022-11-20 19:49:55,226 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-20 19:49:55,643 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2022-11-20 19:49:55,657 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-20 19:50:01,329 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2721#(and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= |timeShift_isMethaneLevelCritical_~retValue_acc~6#1| 0) (<= 1 |timeShift_isHighWaterLevel_~tmp___0~2#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_#res#1|) (<= ~pumpRunning~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (<= |timeShift_getWaterLevel_~retValue_acc~7#1| 2147483647) (<= 0 |timeShift_activatePump_~tmp~7#1|) (= ~methaneLevelCritical~0 0) (<= |timeShift_isHighWaterLevel_~tmp~8#1| 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~11#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_~retValue_acc~6#1|) (= ~head~0.offset 0) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= |timeShift_isHighWaterLevel_~tmp___0~2#1| 1) (<= 0 |timeShift_isHighWaterLevel_~tmp~8#1|) (<= 2 ~waterLevel~0) (<= |timeShift_isMethaneLevelCritical_#res#1| 0) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= 0 |timeShift_isMethaneAlarm_~retValue_acc~9#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~8#1|) (<= |timeShift_isMethaneAlarm_#res#1| 0) (<= 2 |timeShift_getWaterLevel_~retValue_acc~7#1|) (<= 2 |old(~waterLevel~0)|) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~8#1| 0) (<= ~waterLevel~0 2147483647) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~11#1|) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (<= 0 |timeShift_isMethaneAlarm_#res#1|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (<= |timeShift_processEnvironment_~tmp~6#1| 1) (<= |timeShift_isMethaneAlarm_~retValue_acc~9#1| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_activatePump_~tmp~7#1| 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-20 19:50:01,330 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-20 19:50:01,330 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-20 19:50:01,330 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2022-11-20 19:50:01,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242093472] [2022-11-20 19:50:01,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-20 19:50:01,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-20 19:50:01,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:50:01,332 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-20 19:50:01,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1402, Unknown=0, NotChecked=0, Total=1640 [2022-11-20 19:50:01,333 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-20 19:50:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:50:03,248 INFO L93 Difference]: Finished difference Result 663 states and 1003 transitions. [2022-11-20 19:50:03,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-20 19:50:03,249 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 47 [2022-11-20 19:50:03,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:50:03,251 INFO L225 Difference]: With dead ends: 663 [2022-11-20 19:50:03,252 INFO L226 Difference]: Without dead ends: 194 [2022-11-20 19:50:03,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=584, Invalid=3448, Unknown=0, NotChecked=0, Total=4032 [2022-11-20 19:50:03,257 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 602 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:50:03,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 708 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-20 19:50:03,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-20 19:50:03,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 155. [2022-11-20 19:50:03,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 113 states have internal predecessors, (118), 33 states have call successors, (33), 23 states have call predecessors, (33), 20 states have return successors, (50), 27 states have call predecessors, (50), 30 states have call successors, (50) [2022-11-20 19:50:03,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 201 transitions. [2022-11-20 19:50:03,282 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 201 transitions. Word has length 47 [2022-11-20 19:50:03,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:50:03,283 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 201 transitions. [2022-11-20 19:50:03,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-20 19:50:03,283 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 201 transitions. [2022-11-20 19:50:03,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-20 19:50:03,285 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:50:03,285 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-20 19:50:03,299 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 19:50:03,499 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:50:03,500 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:50:03,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:50:03,510 INFO L85 PathProgramCache]: Analyzing trace with hash -269337097, now seen corresponding path program 1 times [2022-11-20 19:50:03,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:50:03,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1849251511] [2022-11-20 19:50:03,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:50:03,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:50:03,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:50:03,683 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-20 19:50:03,684 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:50:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1849251511] [2022-11-20 19:50:03,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1849251511] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-20 19:50:03,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291060740] [2022-11-20 19:50:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:50:03,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:50:03,685 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:50:03,686 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 19:50:03,715 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 19:50:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:50:03,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-20 19:50:03,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 19:50:03,849 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 19:50:03,849 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 19:50:03,850 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291060740] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:50:03,850 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-20 19:50:03,850 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-20 19:50:03,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503009977] [2022-11-20 19:50:03,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:50:03,851 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 19:50:03,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:50:03,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 19:50:03,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 19:50:03,852 INFO L87 Difference]: Start difference. First operand 155 states and 201 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 19:50:03,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:50:03,899 INFO L93 Difference]: Finished difference Result 172 states and 218 transitions. [2022-11-20 19:50:03,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 19:50:03,900 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-11-20 19:50:03,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:50:03,901 INFO L225 Difference]: With dead ends: 172 [2022-11-20 19:50:03,901 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 19:50:03,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 19:50:03,903 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 19:50:03,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 19:50:03,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 19:50:03,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 19:50:03,905 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) [2022-11-20 19:50:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 19:50:03,905 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-11-20 19:50:03,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:50:03,906 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 19:50:03,906 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-20 19:50:03,906 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 19:50:03,906 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 19:50:03,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 19:50:03,919 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 19:50:04,116 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 19:50:04,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 19:50:07,955 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 815 821) no Hoare annotation was computed. [2022-11-20 19:50:07,955 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 815 821) the Hoare annotation is: true [2022-11-20 19:50:07,956 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 647 658) the Hoare annotation is: true [2022-11-20 19:50:07,956 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2022-11-20 19:50:07,956 INFO L899 garLoopResultBuilder]: For program point L795-2(lines 791 813) no Hoare annotation was computed. [2022-11-20 19:50:07,956 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-20 19:50:07,957 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse0 (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1))) (.cse1 (<= |timeShift_processEnvironment_~tmp~6#1| 0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) (not (= |old(~waterLevel~0)| 2))))) [2022-11-20 19:50:07,957 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2))) (and (or (not (= |old(~waterLevel~0)| 2)) .cse0) (or .cse1 (and (= ~waterLevel~0 1) .cse2) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse1 (not (= 1 ~systemActive~0)) .cse0)))) [2022-11-20 19:50:07,957 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-20 19:50:07,957 INFO L895 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (not (< 1 |old(~waterLevel~0)|)) .cse0 (not (<= |old(~waterLevel~0)| 2))))) [2022-11-20 19:50:07,958 INFO L895 garLoopResultBuilder]: At program point L842-1(lines 823 847) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse1)) (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-20 19:50:07,958 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (and (not (= |old(~waterLevel~0)| 1)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 2))) [2022-11-20 19:50:07,958 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (= ~waterLevel~0 1)) (or .cse0 (not .cse2) (= ~pumpRunning~0 0) .cse3) (or .cse0 .cse2 .cse4) (or .cse0 .cse5 (and .cse1 .cse2)) (or .cse3 .cse4) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse5))) [2022-11-20 19:50:07,959 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not .cse1) .cse2 .cse3) (or (and .cse4 .cse5) .cse3) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse5)) (or .cse0 (and (not .cse2) .cse4 .cse5) .cse1))) [2022-11-20 19:50:07,959 INFO L895 garLoopResultBuilder]: At program point L802-1(lines 802 808) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse0) (not (= |old(~waterLevel~0)| 1))) (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-20 19:50:07,959 INFO L895 garLoopResultBuilder]: At program point L831(lines 831 839) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) (and (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse0)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)))) [2022-11-20 19:50:07,960 INFO L895 garLoopResultBuilder]: At program point L827(lines 827 844) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0))) (let ((.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse1 (= ~waterLevel~0 1)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not .cse7)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (and (or (and (or .cse0 .cse1) .cse2) (not (= |old(~waterLevel~0)| 1))) (or .cse3 (not .cse4) .cse5 .cse6) (or .cse5 (and (or .cse7 .cse1) (or .cse0 .cse6) .cse2)) (or .cse3 (and .cse0 .cse2) .cse4)))) [2022-11-20 19:50:07,960 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2022-11-20 19:50:07,960 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2022-11-20 19:50:07,960 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 788 814) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (= ~waterLevel~0 1)) (or .cse0 (not .cse2) (= ~pumpRunning~0 0) .cse3) (or .cse0 .cse2 .cse4) (or .cse0 .cse5 (and .cse1 .cse2)) (or .cse3 .cse4) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse5))) [2022-11-20 19:50:07,961 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse0) .cse1) (or (not (= |old(~waterLevel~0)| 2)) .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse1 (not (= 1 ~systemActive~0)) .cse2)))) [2022-11-20 19:50:07,961 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 814) no Hoare annotation was computed. [2022-11-20 19:50:07,961 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2022-11-20 19:50:07,961 INFO L902 garLoopResultBuilder]: At program point L129(lines 104 133) the Hoare annotation is: true [2022-11-20 19:50:07,962 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 104 133) no Hoare annotation was computed. [2022-11-20 19:50:07,962 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-20 19:50:07,962 INFO L895 garLoopResultBuilder]: At program point cleanupENTRY(lines 104 133) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (= ~waterLevel~0 1)) (or .cse1 .cse0 .cse2) (or .cse1 (not .cse3) (= ~pumpRunning~0 0) .cse4) (or .cse1 .cse3 .cse5) (or .cse4 .cse5) (or .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-20 19:50:07,962 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2022-11-20 19:50:07,962 INFO L895 garLoopResultBuilder]: At program point L118-1(lines 118 122) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse1) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-20 19:50:07,963 INFO L895 garLoopResultBuilder]: At program point L114-2(lines 114 128) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse1) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-20 19:50:07,963 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (= ~waterLevel~0 1)) (or .cse1 .cse0 .cse2) (or .cse1 (not .cse3) (= ~pumpRunning~0 0) .cse4) (or .cse1 .cse3 .cse5) (or .cse4 .cse5) (or .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-20 19:50:07,963 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2022-11-20 19:50:07,963 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2022-11-20 19:50:07,964 INFO L895 garLoopResultBuilder]: At program point L746-1(lines 746 752) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-20 19:50:07,964 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-20 19:50:07,964 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-20 19:50:07,964 INFO L895 garLoopResultBuilder]: At program point L193(lines 193 200) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-20 19:50:07,965 INFO L902 garLoopResultBuilder]: At program point L193-2(lines 193 200) the Hoare annotation is: true [2022-11-20 19:50:07,965 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 19:50:07,965 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 19:50:07,965 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-20 19:50:07,965 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2022-11-20 19:50:07,965 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-20 19:50:07,966 INFO L902 garLoopResultBuilder]: At program point L777(lines 716 781) the Hoare annotation is: true [2022-11-20 19:50:07,966 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-11-20 19:50:07,966 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-11-20 19:50:07,966 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: (or (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-20 19:50:07,966 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2022-11-20 19:50:07,967 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 635 646) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (= ~pumpRunning~0 0) (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0) (or (not (= |old(~waterLevel~0)| 2)) .cse0))) [2022-11-20 19:50:07,967 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 893 901) no Hoare annotation was computed. [2022-11-20 19:50:07,967 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 893 901) the Hoare annotation is: true [2022-11-20 19:50:07,970 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-20 19:50:07,973 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 19:50:07,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:50:07 BoogieIcfgContainer [2022-11-20 19:50:07,995 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 19:50:07,996 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 19:50:07,996 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 19:50:07,996 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 19:50:07,997 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:49:47" (3/4) ... [2022-11-20 19:50:07,999 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 19:50:08,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 19:50:08,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 19:50:08,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 19:50:08,005 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 19:50:08,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 19:50:08,006 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-20 19:50:08,016 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-20 19:50:08,026 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-20 19:50:08,026 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 19:50:08,027 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 19:50:08,027 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 19:50:08,055 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 1) || (waterLevel == 1 && pumpRunning == switchedOnBeforeTS)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-20 19:50:08,056 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(\old(waterLevel) == 2))) && ((\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning) || !(\old(waterLevel) == 2))) && (!(\old(waterLevel) == 1) || (waterLevel == 1 && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || \old(pumpRunning) == 0) [2022-11-20 19:50:08,057 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-20 19:50:08,058 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && (((tmp == waterLevel || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) [2022-11-20 19:50:08,059 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel)) && (!(\old(waterLevel) == 2) || (((pumpRunning == 0 || waterLevel == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || \old(pumpRunning) == 0) [2022-11-20 19:50:08,059 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(waterLevel) == 1) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0)) && !(\old(waterLevel) == 2) [2022-11-20 19:50:08,059 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-20 19:50:08,060 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) && (!(\old(waterLevel) == 1) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) [2022-11-20 19:50:08,105 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 19:50:08,106 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 19:50:08,106 INFO L158 Benchmark]: Toolchain (without parser) took 21767.23ms. Allocated memory was 121.6MB in the beginning and 390.1MB in the end (delta: 268.4MB). Free memory was 90.6MB in the beginning and 254.1MB in the end (delta: -163.5MB). Peak memory consumption was 106.9MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,106 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:50:08,107 INFO L158 Benchmark]: CACSL2BoogieTranslator took 624.13ms. Allocated memory is still 121.6MB. Free memory was 90.6MB in the beginning and 72.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,107 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.45ms. Allocated memory is still 121.6MB. Free memory was 71.7MB in the beginning and 69.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,107 INFO L158 Benchmark]: Boogie Preprocessor took 68.62ms. Allocated memory is still 121.6MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,108 INFO L158 Benchmark]: RCFGBuilder took 678.28ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 68.0MB in the beginning and 155.6MB in the end (delta: -87.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,108 INFO L158 Benchmark]: TraceAbstraction took 20204.50ms. Allocated memory was 186.6MB in the beginning and 390.1MB in the end (delta: 203.4MB). Free memory was 155.6MB in the beginning and 259.3MB in the end (delta: -103.7MB). Peak memory consumption was 197.9MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,109 INFO L158 Benchmark]: Witness Printer took 109.93ms. Allocated memory is still 390.1MB. Free memory was 259.3MB in the beginning and 254.1MB in the end (delta: 5.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-20 19:50:08,110 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 121.6MB. Free memory is still 69.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 624.13ms. Allocated memory is still 121.6MB. Free memory was 90.6MB in the beginning and 72.2MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.45ms. Allocated memory is still 121.6MB. Free memory was 71.7MB in the beginning and 69.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 68.62ms. Allocated memory is still 121.6MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 678.28ms. Allocated memory was 121.6MB in the beginning and 186.6MB in the end (delta: 65.0MB). Free memory was 68.0MB in the beginning and 155.6MB in the end (delta: -87.6MB). Peak memory consumption was 28.6MB. Max. memory is 16.1GB. * TraceAbstraction took 20204.50ms. Allocated memory was 186.6MB in the beginning and 390.1MB in the end (delta: 203.4MB). Free memory was 155.6MB in the beginning and 259.3MB in the end (delta: -103.7MB). Peak memory consumption was 197.9MB. Max. memory is 16.1GB. * Witness Printer took 109.93ms. Allocated memory is still 390.1MB. Free memory was 259.3MB in the beginning and 254.1MB in the end (delta: 5.3MB). 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: 211]: 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, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 20.1s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1034 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1018 mSDsluCounter, 1793 SdHoareTripleChecker+Invalid, 1.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1309 mSDsCounter, 742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2000 IncrementalHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 742 mSolverCounterUnsat, 484 mSDtfsCounter, 2000 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 6.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=5, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 1400 PreInvPairs, 2472 NumberOfFragments, 1208 HoareAnnotationTreeSize, 1400 FomulaSimplifications, 9893 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 31 FomulaSimplificationsInter, 12297 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 SizeOfPredicates, 14 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 108/121 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: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: ((!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS) || waterLevel == 1) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 1) || (waterLevel == 1 && pumpRunning == switchedOnBeforeTS)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((1 == systemActive && tmp == 1) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) == 1) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0)) && !(\old(waterLevel) == 2) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && (((tmp == waterLevel || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 823]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) && (!(\old(waterLevel) == 1) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel)) && (!(\old(waterLevel) == 2) || (((pumpRunning == 0 || waterLevel == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || \old(pumpRunning) == 0) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(\old(waterLevel) == 2))) && ((\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning) || !(\old(waterLevel) == 2))) && (!(\old(waterLevel) == 1) || (waterLevel == 1 && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || \old(pumpRunning) == 0) - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: ((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && waterLevel == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && waterLevel == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-20 19:50:08,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33af1ad4-c561-4279-a7a1-4198bd72db63/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE