./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a 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_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI --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 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 --- 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-5e519f3 [2022-11-03 01:38:43,319 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:38:43,322 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:38:43,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:38:43,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:38:43,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:38:43,376 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:38:43,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:38:43,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:38:43,388 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:38:43,389 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:38:43,391 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:38:43,392 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:38:43,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:38:43,396 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:38:43,397 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:38:43,399 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:38:43,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:38:43,402 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:38:43,411 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:38:43,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:38:43,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:38:43,416 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:38:43,417 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:38:43,426 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:38:43,426 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:38:43,426 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:38:43,428 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:38:43,429 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:38:43,430 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:38:43,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:38:43,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:38:43,435 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:38:43,436 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:38:43,438 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:38:43,438 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:38:43,439 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:38:43,439 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:38:43,440 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:38:43,441 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:38:43,442 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:38:43,443 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:38:43,472 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:38:43,475 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:38:43,476 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:38:43,476 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:38:43,477 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:38:43,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:38:43,478 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:38:43,478 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:38:43,478 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:38:43,479 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:38:43,480 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:38:43,480 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:38:43,480 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:38:43,480 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:38:43,481 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:38:43,481 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:38:43,481 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:38:43,482 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:38:43,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:38:43,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:38:43,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:38:43,483 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:38:43,483 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:38:43,485 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:38:43,485 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:38:43,485 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:38:43,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:38:43,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:38:43,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:38:43,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:38:43,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:38:43,487 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:38:43,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:38:43,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:38:43,488 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:38:43,488 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:38:43,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:38:43,489 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:38:43,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:38:43,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:38:43,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:38:43,490 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_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 45ba8c3ee5105630bc9146965d68439e6204903aca4c5a31cd4f017e456c8589 [2022-11-03 01:38:43,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:38:43,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:38:43,845 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:38:43,853 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:38:43,854 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:38:43,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2022-11-03 01:38:43,938 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/data/3c444e43c/6509e99cedb5424198d6de76de4f4874/FLAGc164dabc4 [2022-11-03 01:38:44,498 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:38:44,506 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c [2022-11-03 01:38:44,522 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/data/3c444e43c/6509e99cedb5424198d6de76de4f4874/FLAGc164dabc4 [2022-11-03 01:38:44,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/data/3c444e43c/6509e99cedb5424198d6de76de4f4874 [2022-11-03 01:38:44,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:38:44,779 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:38:44,783 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:38:44,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:38:44,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:38:44,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:44" (1/1) ... [2022-11-03 01:38:44,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4d9151 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:44, skipping insertion in model container [2022-11-03 01:38:44,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:38:44" (1/1) ... [2022-11-03 01:38:44,799 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:38:44,840 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:38:45,067 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2022-11-03 01:38:45,181 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:38:45,189 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:38:45,209 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/sv-benchmarks/c/product-lines/minepump_spec5_product35.cil.c[1605,1618] [2022-11-03 01:38:45,271 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:38:45,289 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:38:45,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45 WrapperNode [2022-11-03 01:38:45,290 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:38:45,291 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:38:45,291 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:38:45,291 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:38:45,298 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,345 INFO L138 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 24, calls inlined = 20, statements flattened = 235 [2022-11-03 01:38:45,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:38:45,346 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:38:45,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:38:45,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:38:45,355 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,358 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:38:45,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:38:45,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:38:45,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:38:45,399 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (1/1) ... [2022-11-03 01:38:45,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:38:45,423 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:45,434 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:38:45,453 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:38:45,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:38:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 01:38:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 01:38:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 01:38:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 01:38:45,488 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 01:38:45,488 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 01:38:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 01:38:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 01:38:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-03 01:38:45,489 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-03 01:38:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:38:45,489 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 01:38:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 01:38:45,490 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:38:45,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:38:45,565 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:38:45,567 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:38:46,017 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:38:46,188 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:38:46,189 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:38:46,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:46 BoogieIcfgContainer [2022-11-03 01:38:46,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:38:46,199 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:38:46,199 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:38:46,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:38:46,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:38:44" (1/3) ... [2022-11-03 01:38:46,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7736e557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:38:46, skipping insertion in model container [2022-11-03 01:38:46,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:38:45" (2/3) ... [2022-11-03 01:38:46,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7736e557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:38:46, skipping insertion in model container [2022-11-03 01:38:46,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:46" (3/3) ... [2022-11-03 01:38:46,206 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product35.cil.c [2022-11-03 01:38:46,224 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:38:46,225 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:38:46,321 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:38:46,328 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;@6bbd51bb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:38:46,328 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:38:46,332 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) [2022-11-03 01:38:46,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 01:38:46,342 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:46,342 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] [2022-11-03 01:38:46,343 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:46,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:46,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1867634907, now seen corresponding path program 1 times [2022-11-03 01:38:46,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:46,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847064322] [2022-11-03 01:38:46,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:46,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:46,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:46,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:38:46,597 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:46,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847064322] [2022-11-03 01:38:46,598 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847064322] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:46,598 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:46,598 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:38:46,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171777219] [2022-11-03 01:38:46,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:46,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:38:46,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:46,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:38:46,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:38:46,648 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) [2022-11-03 01:38:46,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:46,758 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-03 01:38:46,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:38:46,761 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 [2022-11-03 01:38:46,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:46,771 INFO L225 Difference]: With dead ends: 100 [2022-11-03 01:38:46,771 INFO L226 Difference]: Without dead ends: 46 [2022-11-03 01:38:46,776 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 [2022-11-03 01:38:46,780 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 [2022-11-03 01:38:46,781 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] [2022-11-03 01:38:46,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-03 01:38:46,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-03 01:38:46,829 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) [2022-11-03 01:38:46,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-03 01:38:46,832 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-03 01:38:46,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:46,833 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-03 01:38:46,833 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) [2022-11-03 01:38:46,834 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-03 01:38:46,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-03 01:38:46,836 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:46,837 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] [2022-11-03 01:38:46,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:38:46,837 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:46,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:46,838 INFO L85 PathProgramCache]: Analyzing trace with hash 333823414, now seen corresponding path program 1 times [2022-11-03 01:38:46,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:46,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671529316] [2022-11-03 01:38:46,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:46,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:47,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:38:47,006 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:47,006 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671529316] [2022-11-03 01:38:47,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671529316] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:47,007 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:47,007 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:38:47,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549005795] [2022-11-03 01:38:47,007 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:47,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:38:47,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:47,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:38:47,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:47,010 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-03 01:38:47,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:47,074 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-11-03 01:38:47,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:38:47,077 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 22 [2022-11-03 01:38:47,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:47,079 INFO L225 Difference]: With dead ends: 69 [2022-11-03 01:38:47,079 INFO L226 Difference]: Without dead ends: 38 [2022-11-03 01:38:47,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:47,081 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:47,081 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:38:47,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-11-03 01:38:47,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-11-03 01:38:47,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 25 states have (on average 1.32) internal successors, (33), 30 states have internal predecessors, (33), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-03 01:38:47,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 47 transitions. [2022-11-03 01:38:47,090 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 47 transitions. Word has length 22 [2022-11-03 01:38:47,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:47,091 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 47 transitions. [2022-11-03 01:38:47,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2022-11-03 01:38:47,092 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 47 transitions. [2022-11-03 01:38:47,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 01:38:47,094 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:47,094 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] [2022-11-03 01:38:47,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:38:47,094 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:47,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:47,105 INFO L85 PathProgramCache]: Analyzing trace with hash -1844053297, now seen corresponding path program 1 times [2022-11-03 01:38:47,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:47,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665946230] [2022-11-03 01:38:47,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:47,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:47,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:47,362 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:38:47,362 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:47,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665946230] [2022-11-03 01:38:47,362 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665946230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:47,363 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:47,363 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:38:47,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583308347] [2022-11-03 01:38:47,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:47,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:38:47,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:47,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:38:47,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:38:47,365 INFO L87 Difference]: Start difference. First operand 38 states and 47 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) [2022-11-03 01:38:47,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:47,870 INFO L93 Difference]: Finished difference Result 145 states and 181 transitions. [2022-11-03 01:38:47,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 01:38:47,871 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 [2022-11-03 01:38:47,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:47,877 INFO L225 Difference]: With dead ends: 145 [2022-11-03 01:38:47,877 INFO L226 Difference]: Without dead ends: 109 [2022-11-03 01:38:47,879 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:38:47,887 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 74 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 339 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 339 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:47,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 289 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 339 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:38:47,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-03 01:38:47,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 76. [2022-11-03 01:38:47,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.26) internal successors, (63), 56 states have internal predecessors, (63), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (15), 12 states have call predecessors, (15), 13 states have call successors, (15) [2022-11-03 01:38:47,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2022-11-03 01:38:47,908 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 24 [2022-11-03 01:38:47,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:47,909 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2022-11-03 01:38:47,909 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) [2022-11-03 01:38:47,909 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2022-11-03 01:38:47,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 01:38:47,915 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:47,915 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] [2022-11-03 01:38:47,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:38:47,916 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:47,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:47,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1738114571, now seen corresponding path program 1 times [2022-11-03 01:38:47,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:47,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584353090] [2022-11-03 01:38:47,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:47,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:47,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:48,363 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:38:48,363 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:48,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584353090] [2022-11-03 01:38:48,364 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584353090] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:48,364 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:48,364 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 01:38:48,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081267436] [2022-11-03 01:38:48,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:48,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 01:38:48,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:48,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 01:38:48,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-03 01:38:48,366 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2022-11-03 01:38:48,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:48,526 INFO L93 Difference]: Finished difference Result 248 states and 313 transitions. [2022-11-03 01:38:48,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:38:48,527 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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 [2022-11-03 01:38:48,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:48,533 INFO L225 Difference]: With dead ends: 248 [2022-11-03 01:38:48,533 INFO L226 Difference]: Without dead ends: 174 [2022-11-03 01:38:48,537 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:38:48,543 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 80 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 188 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:48,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 188 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:38:48,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2022-11-03 01:38:48,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 101. [2022-11-03 01:38:48,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 69 states have (on average 1.2753623188405796) internal successors, (88), 74 states have internal predecessors, (88), 15 states have call successors, (15), 15 states have call predecessors, (15), 16 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-03 01:38:48,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 120 transitions. [2022-11-03 01:38:48,590 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 120 transitions. Word has length 27 [2022-11-03 01:38:48,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:48,591 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 120 transitions. [2022-11-03 01:38:48,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 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) [2022-11-03 01:38:48,591 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 120 transitions. [2022-11-03 01:38:48,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-03 01:38:48,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:48,600 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] [2022-11-03 01:38:48,601 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:38:48,601 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:48,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:48,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1514925428, now seen corresponding path program 1 times [2022-11-03 01:38:48,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:48,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014335701] [2022-11-03 01:38:48,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:48,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:48,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:48,885 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:38:48,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:48,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014335701] [2022-11-03 01:38:48,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014335701] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:48,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:48,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:38:48,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165086789] [2022-11-03 01:38:48,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:48,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:38:48,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:48,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:38:48,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:38:48,889 INFO L87 Difference]: Start difference. First operand 101 states and 120 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) [2022-11-03 01:38:49,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:49,331 INFO L93 Difference]: Finished difference Result 260 states and 314 transitions. [2022-11-03 01:38:49,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-03 01:38:49,333 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 [2022-11-03 01:38:49,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:49,335 INFO L225 Difference]: With dead ends: 260 [2022-11-03 01:38:49,335 INFO L226 Difference]: Without dead ends: 200 [2022-11-03 01:38:49,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2022-11-03 01:38:49,337 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 130 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 50 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 50 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:49,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 268 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [50 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:38:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2022-11-03 01:38:49,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 153. [2022-11-03 01:38:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 105 states have (on average 1.2666666666666666) internal successors, (133), 114 states have internal predecessors, (133), 23 states have call successors, (23), 21 states have call predecessors, (23), 24 states have return successors, (27), 23 states have call predecessors, (27), 23 states have call successors, (27) [2022-11-03 01:38:49,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 183 transitions. [2022-11-03 01:38:49,391 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 183 transitions. Word has length 30 [2022-11-03 01:38:49,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:49,391 INFO L495 AbstractCegarLoop]: Abstraction has 153 states and 183 transitions. [2022-11-03 01:38:49,391 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) [2022-11-03 01:38:49,392 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 183 transitions. [2022-11-03 01:38:49,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 01:38:49,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:49,400 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-03 01:38:49,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:38:49,400 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:49,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:49,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1138650889, now seen corresponding path program 1 times [2022-11-03 01:38:49,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:49,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874053134] [2022-11-03 01:38:49,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:49,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:49,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:49,764 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:38:49,765 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:49,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874053134] [2022-11-03 01:38:49,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874053134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:49,765 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:49,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 01:38:49,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149985674] [2022-11-03 01:38:49,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:49,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 01:38:49,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:49,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 01:38:49,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:38:49,768 INFO L87 Difference]: Start difference. First operand 153 states and 183 transitions. Second operand has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:38:50,309 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:50,310 INFO L93 Difference]: Finished difference Result 289 states and 343 transitions. [2022-11-03 01:38:50,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 01:38:50,310 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2022-11-03 01:38:50,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:50,312 INFO L225 Difference]: With dead ends: 289 [2022-11-03 01:38:50,313 INFO L226 Difference]: Without dead ends: 227 [2022-11-03 01:38:50,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=98, Invalid=322, Unknown=0, NotChecked=0, Total=420 [2022-11-03 01:38:50,315 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 144 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:50,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 146 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:38:50,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-11-03 01:38:50,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 176. [2022-11-03 01:38:50,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 120 states have (on average 1.2583333333333333) internal successors, (151), 131 states have internal predecessors, (151), 27 states have call successors, (27), 25 states have call predecessors, (27), 28 states have return successors, (33), 26 states have call predecessors, (33), 27 states have call successors, (33) [2022-11-03 01:38:50,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 211 transitions. [2022-11-03 01:38:50,380 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 211 transitions. Word has length 44 [2022-11-03 01:38:50,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:50,381 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 211 transitions. [2022-11-03 01:38:50,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 10 states have internal predecessors, (33), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 01:38:50,381 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 211 transitions. [2022-11-03 01:38:50,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 01:38:50,383 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:50,383 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] [2022-11-03 01:38:50,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:38:50,383 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:50,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:50,384 INFO L85 PathProgramCache]: Analyzing trace with hash 490514112, now seen corresponding path program 1 times [2022-11-03 01:38:50,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:50,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364763876] [2022-11-03 01:38:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:50,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:50,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:50,485 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:38:50,485 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:50,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364763876] [2022-11-03 01:38:50,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364763876] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:50,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:50,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:38:50,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71040727] [2022-11-03 01:38:50,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:50,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:38:50,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:50,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:38:50,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:50,487 INFO L87 Difference]: Start difference. First operand 176 states and 211 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-03 01:38:50,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:50,577 INFO L93 Difference]: Finished difference Result 268 states and 321 transitions. [2022-11-03 01:38:50,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:38:50,578 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 47 [2022-11-03 01:38:50,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:50,580 INFO L225 Difference]: With dead ends: 268 [2022-11-03 01:38:50,581 INFO L226 Difference]: Without dead ends: 149 [2022-11-03 01:38:50,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:38:50,586 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 17 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:50,587 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 84 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:38:50,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-11-03 01:38:50,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 136. [2022-11-03 01:38:50,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 93 states have (on average 1.2258064516129032) internal successors, (114), 101 states have internal predecessors, (114), 21 states have call successors, (21), 19 states have call predecessors, (21), 21 states have return successors, (24), 21 states have call predecessors, (24), 21 states have call successors, (24) [2022-11-03 01:38:50,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 159 transitions. [2022-11-03 01:38:50,624 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 159 transitions. Word has length 47 [2022-11-03 01:38:50,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:50,624 INFO L495 AbstractCegarLoop]: Abstraction has 136 states and 159 transitions. [2022-11-03 01:38:50,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 3 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-03 01:38:50,624 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 159 transitions. [2022-11-03 01:38:50,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-11-03 01:38:50,626 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:50,627 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-03 01:38:50,627 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 01:38:50,627 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:50,628 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:50,628 INFO L85 PathProgramCache]: Analyzing trace with hash -1042267128, now seen corresponding path program 1 times [2022-11-03 01:38:50,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:50,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790831759] [2022-11-03 01:38:50,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:50,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:50,791 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:38:50,792 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:50,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790831759] [2022-11-03 01:38:50,792 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790831759] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:50,792 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:50,792 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 01:38:50,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188619481] [2022-11-03 01:38:50,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:50,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:38:50,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:50,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:38:50,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:38:50,794 INFO L87 Difference]: Start difference. First operand 136 states and 159 transitions. Second operand has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-03 01:38:51,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:51,003 INFO L93 Difference]: Finished difference Result 253 states and 299 transitions. [2022-11-03 01:38:51,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:38:51,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2022-11-03 01:38:51,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:51,005 INFO L225 Difference]: With dead ends: 253 [2022-11-03 01:38:51,005 INFO L226 Difference]: Without dead ends: 183 [2022-11-03 01:38:51,005 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:38:51,006 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 68 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:51,007 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 132 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:38:51,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-03 01:38:51,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2022-11-03 01:38:51,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 124 states have (on average 1.1935483870967742) internal successors, (148), 135 states have internal predecessors, (148), 29 states have call successors, (29), 27 states have call predecessors, (29), 29 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2022-11-03 01:38:51,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 212 transitions. [2022-11-03 01:38:51,042 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 212 transitions. Word has length 49 [2022-11-03 01:38:51,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:51,043 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 212 transitions. [2022-11-03 01:38:51,043 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.0) internal successors, (36), 7 states have internal predecessors, (36), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-03 01:38:51,043 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 212 transitions. [2022-11-03 01:38:51,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-11-03 01:38:51,044 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:51,045 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:51,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:38:51,045 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:51,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:51,046 INFO L85 PathProgramCache]: Analyzing trace with hash 490448025, now seen corresponding path program 1 times [2022-11-03 01:38:51,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:51,046 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408653333] [2022-11-03 01:38:51,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:51,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:51,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:51,186 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 01:38:51,186 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:51,187 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408653333] [2022-11-03 01:38:51,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408653333] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:38:51,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:38:51,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-03 01:38:51,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331071105] [2022-11-03 01:38:51,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:38:51,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-03 01:38:51,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:38:51,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-03 01:38:51,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:38:51,189 INFO L87 Difference]: Start difference. First operand 183 states and 212 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 01:38:51,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:38:51,357 INFO L93 Difference]: Finished difference Result 307 states and 357 transitions. [2022-11-03 01:38:51,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 01:38:51,358 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 53 [2022-11-03 01:38:51,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:38:51,359 INFO L225 Difference]: With dead ends: 307 [2022-11-03 01:38:51,360 INFO L226 Difference]: Without dead ends: 191 [2022-11-03 01:38:51,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:38:51,361 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 49 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:38:51,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 108 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:38:51,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2022-11-03 01:38:51,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 183. [2022-11-03 01:38:51,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 124 states have (on average 1.185483870967742) internal successors, (147), 135 states have internal predecessors, (147), 29 states have call successors, (29), 27 states have call predecessors, (29), 29 states have return successors, (35), 29 states have call predecessors, (35), 29 states have call successors, (35) [2022-11-03 01:38:51,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 211 transitions. [2022-11-03 01:38:51,405 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 211 transitions. Word has length 53 [2022-11-03 01:38:51,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:38:51,407 INFO L495 AbstractCegarLoop]: Abstraction has 183 states and 211 transitions. [2022-11-03 01:38:51,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 7 states have internal predecessors, (38), 3 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2022-11-03 01:38:51,407 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 211 transitions. [2022-11-03 01:38:51,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-11-03 01:38:51,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:38:51,408 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:38:51,409 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:38:51,409 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:38:51,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:38:51,410 INFO L85 PathProgramCache]: Analyzing trace with hash 74301078, now seen corresponding path program 1 times [2022-11-03 01:38:51,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:38:51,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848088172] [2022-11-03 01:38:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:51,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:38:51,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:51,766 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 01:38:51,766 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:38:51,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848088172] [2022-11-03 01:38:51,767 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848088172] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:38:51,767 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [528298644] [2022-11-03 01:38:51,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:38:51,768 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:38:51,768 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:38:51,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:38:51,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:38:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:38:51,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 28 conjunts are in the unsatisfiable core [2022-11-03 01:38:51,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:38:52,144 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 13 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-03 01:38:52,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:38:52,994 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-11-03 01:38:52,994 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [528298644] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:38:52,994 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [684601849] [2022-11-03 01:38:53,015 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-03 01:38:53,015 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:38:53,019 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:38:53,025 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:38:53,025 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:39:09,210 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 311 for LOIs [2022-11-03 01:39:09,285 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 33 for LOIs [2022-11-03 01:39:09,849 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 26 for LOIs [2022-11-03 01:39:09,852 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 30 for LOIs [2022-11-03 01:39:09,854 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:39:22,093 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5260#(and (<= 1 |timeShift_processEnvironment_~tmp~5#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 |old(~pumpRunning~0)|) (<= 0 ~systemActive~0) (<= 0 |old(~switchedOnBeforeTS~0)|) (<= |timeShift_isHighWaterLevel_~retValue_acc~11#1| 1) (= ~head~0.offset 0) (<= 2 ~waterLevel~0) (<= 1 |timeShift_isHighWaterLevel_~tmp___0~1#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= |old(~switchedOnBeforeTS~0)| 0) (<= |timeShift_isHighWaterLevel_~tmp~6#1| 0) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~8#1|) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (<= |old(~pumpRunning~0)| 0) (<= 0 |timeShift_isHighWaterLevel_~tmp~6#1|) (<= 2 |old(~waterLevel~0)|) (<= ~methaneLevelCritical~0 0) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~8#1| 0) (<= 0 ~head~0.base) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (<= 0 ~methaneLevelCritical~0) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~11#1|) (<= |timeShift_processEnvironment_~tmp~5#1| 1) (<= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (<= 0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 01:39:22,093 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:39:22,094 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:39:22,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 17 [2022-11-03 01:39:22,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591700964] [2022-11-03 01:39:22,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:39:22,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-03 01:39:22,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:22,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-03 01:39:22,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=230, Invalid=1662, Unknown=0, NotChecked=0, Total=1892 [2022-11-03 01:39:22,097 INFO L87 Difference]: Start difference. First operand 183 states and 211 transitions. Second operand has 17 states, 14 states have (on average 4.857142857142857) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 6 states have call predecessors, (16), 8 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-11-03 01:39:23,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:23,465 INFO L93 Difference]: Finished difference Result 422 states and 508 transitions. [2022-11-03 01:39:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-11-03 01:39:23,466 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 4.857142857142857) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 6 states have call predecessors, (16), 8 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 58 [2022-11-03 01:39:23,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:23,471 INFO L225 Difference]: With dead ends: 422 [2022-11-03 01:39:23,471 INFO L226 Difference]: Without dead ends: 340 [2022-11-03 01:39:23,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 149 SyntacticMatches, 1 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1443 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=530, Invalid=3760, Unknown=0, NotChecked=0, Total=4290 [2022-11-03 01:39:23,475 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 387 mSDsluCounter, 451 mSDsCounter, 0 mSdLazyCounter, 622 mSolverCounterSat, 259 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 881 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 259 IncrementalHoareTripleChecker+Valid, 622 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:23,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 465 Invalid, 881 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [259 Valid, 622 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-03 01:39:23,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2022-11-03 01:39:23,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 204. [2022-11-03 01:39:23,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 137 states have (on average 1.1897810218978102) internal successors, (163), 151 states have internal predecessors, (163), 33 states have call successors, (33), 31 states have call predecessors, (33), 33 states have return successors, (42), 33 states have call predecessors, (42), 33 states have call successors, (42) [2022-11-03 01:39:23,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 238 transitions. [2022-11-03 01:39:23,520 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 238 transitions. Word has length 58 [2022-11-03 01:39:23,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:23,521 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 238 transitions. [2022-11-03 01:39:23,521 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 4.857142857142857) internal successors, (68), 16 states have internal predecessors, (68), 6 states have call successors, (16), 6 states have call predecessors, (16), 8 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-11-03 01:39:23,521 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 238 transitions. [2022-11-03 01:39:23,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 01:39:23,523 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:23,523 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:23,568 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:39:23,742 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 01:39:23,743 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:39:23,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:23,743 INFO L85 PathProgramCache]: Analyzing trace with hash 923864811, now seen corresponding path program 1 times [2022-11-03 01:39:23,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:23,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961098543] [2022-11-03 01:39:23,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:23,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:23,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:24,082 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:39:24,082 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:39:24,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961098543] [2022-11-03 01:39:24,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961098543] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:39:24,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953182925] [2022-11-03 01:39:24,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:24,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:39:24,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:39:24,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:39:24,092 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:39:24,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:24,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 18 conjunts are in the unsatisfiable core [2022-11-03 01:39:24,220 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:39:24,406 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 01:39:24,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:39:24,726 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 45 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-03 01:39:24,727 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953182925] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:39:24,727 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1901015372] [2022-11-03 01:39:24,733 INFO L159 IcfgInterpreter]: Started Sifa with 34 locations of interest [2022-11-03 01:39:24,733 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:39:24,733 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:39:24,733 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:39:24,734 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:39:43,480 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 53 for LOIs [2022-11-03 01:39:43,489 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 30 for LOIs [2022-11-03 01:39:43,671 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-03 01:39:43,680 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 33 for LOIs [2022-11-03 01:39:43,683 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:39:48,041 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6766#(and (= |timeShift_getWaterLevel_~retValue_acc~7#1| |timeShift_getWaterLevel_#res#1|) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 0)) (<= 0 ~systemActive~0) (= ~methaneLevelCritical~0 0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~pumpRunning~0)| 2147483647) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| |timeShift_getWaterLevel_#res#1|) (= |timeShift_getWaterLevel_~retValue_acc~7#1| ~waterLevel~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 2147483647) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~7#1| 2147483648)) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 01:39:48,041 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:39:48,041 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:39:48,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 20 [2022-11-03 01:39:48,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1158881804] [2022-11-03 01:39:48,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:39:48,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:39:48,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:48,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:39:48,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=1891, Unknown=0, NotChecked=0, Total=2162 [2022-11-03 01:39:48,044 INFO L87 Difference]: Start difference. First operand 204 states and 238 transitions. Second operand has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 9 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) [2022-11-03 01:39:49,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:49,508 INFO L93 Difference]: Finished difference Result 596 states and 832 transitions. [2022-11-03 01:39:49,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-11-03 01:39:49,509 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 9 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) Word has length 72 [2022-11-03 01:39:49,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:49,512 INFO L225 Difference]: With dead ends: 596 [2022-11-03 01:39:49,512 INFO L226 Difference]: Without dead ends: 422 [2022-11-03 01:39:49,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 190 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1423 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=547, Invalid=3875, Unknown=0, NotChecked=0, Total=4422 [2022-11-03 01:39:49,515 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 395 mSDsluCounter, 379 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 397 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:49,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [397 Valid, 353 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 01:39:49,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2022-11-03 01:39:49,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 254. [2022-11-03 01:39:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 169 states have (on average 1.1893491124260356) internal successors, (201), 191 states have internal predecessors, (201), 43 states have call successors, (43), 37 states have call predecessors, (43), 41 states have return successors, (66), 43 states have call predecessors, (66), 43 states have call successors, (66) [2022-11-03 01:39:49,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 310 transitions. [2022-11-03 01:39:49,574 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 310 transitions. Word has length 72 [2022-11-03 01:39:49,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:49,574 INFO L495 AbstractCegarLoop]: Abstraction has 254 states and 310 transitions. [2022-11-03 01:39:49,575 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.85) internal successors, (77), 20 states have internal predecessors, (77), 9 states have call successors, (15), 4 states have call predecessors, (15), 7 states have return successors, (16), 9 states have call predecessors, (16), 9 states have call successors, (16) [2022-11-03 01:39:49,575 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 310 transitions. [2022-11-03 01:39:49,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-03 01:39:49,576 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:39:49,576 INFO L195 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:49,612 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-03 01:39:49,802 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-11-03 01:39:49,803 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:39:49,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:39:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1021388440, now seen corresponding path program 1 times [2022-11-03 01:39:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:39:49,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482783039] [2022-11-03 01:39:49,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:39:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:39:49,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:39:49,960 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-11-03 01:39:49,960 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:39:49,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482783039] [2022-11-03 01:39:49,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [482783039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:39:49,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:39:49,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:39:49,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954635650] [2022-11-03 01:39:49,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:39:49,961 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:39:49,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:39:49,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:39:49,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:39:49,962 INFO L87 Difference]: Start difference. First operand 254 states and 310 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-03 01:39:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:39:50,040 INFO L93 Difference]: Finished difference Result 366 states and 444 transitions. [2022-11-03 01:39:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:39:50,040 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2022-11-03 01:39:50,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:39:50,041 INFO L225 Difference]: With dead ends: 366 [2022-11-03 01:39:50,041 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:39:50,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:39:50,043 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-03 01:39:50,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 83 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-03 01:39:50,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:39:50,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:39:50,044 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) [2022-11-03 01:39:50,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:39:50,045 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 78 [2022-11-03 01:39:50,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:39:50,045 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:39:50,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2022-11-03 01:39:50,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:39:50,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:39:50,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:39:50,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-03 01:39:50,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 01:39:57,044 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 768 774) no Hoare annotation was computed. [2022-11-03 01:39:57,044 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 768 774) the Hoare annotation is: true [2022-11-03 01:39:57,044 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 665 676) the Hoare annotation is: true [2022-11-03 01:39:57,044 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 665 676) no Hoare annotation was computed. [2022-11-03 01:39:57,045 INFO L895 garLoopResultBuilder]: At program point L795(line 795) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse1))) (and (or .cse0 (not (= |old(~waterLevel~0)| 2))) (or .cse0 (not (= |old(~waterLevel~0)| 1))) (not (= 0 ~systemActive~0)) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse2 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse2) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse2))) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< |old(~waterLevel~0)| 3)))))) [2022-11-03 01:39:57,046 INFO L895 garLoopResultBuilder]: At program point L795-1(lines 776 800) the Hoare annotation is: (let ((.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not .cse6)) (.cse2 (= ~pumpRunning~0 0)) (.cse0 (<= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse1 (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3) .cse4 (not (= |old(~waterLevel~0)| 1))) (or .cse4 (and (not .cse2) (= 2 ~waterLevel~0)) (not (= |old(~waterLevel~0)| 2)) (and .cse0 .cse1 .cse5 .cse3)) (not (= 0 ~systemActive~0)) (or .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse7 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse7) .cse5) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse7))) .cse3) (not (< |old(~waterLevel~0)| 3)))))) [2022-11-03 01:39:57,046 INFO L899 garLoopResultBuilder]: For program point L940(lines 940 946) no Hoare annotation was computed. [2022-11-03 01:39:57,046 INFO L895 garLoopResultBuilder]: At program point L755-1(lines 755 761) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0))) (let ((.cse7 (not .cse2)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (= 0 ~systemActive~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse8 (or .cse7 .cse4))) (let ((.cse0 (and .cse1 .cse5 .cse8)) (.cse6 (= ~pumpRunning~0 0))) (and (or .cse0 (not .cse1)) (or .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) .cse4) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))) .cse5) .cse0 (not (< |old(~waterLevel~0)| 3))) (or (and (<= |timeShift_processEnvironment_~tmp~5#1| 0) (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1)) .cse6 (= ~waterLevel~0 1) .cse5) .cse7 (not (= |old(~waterLevel~0)| 1)) (and .cse6 .cse1)) (or (and (not .cse6) (= 2 ~waterLevel~0)) (not (= |old(~waterLevel~0)| 2)) (and .cse5 .cse8))))))) [2022-11-03 01:39:57,047 INFO L895 garLoopResultBuilder]: At program point L784(lines 784 792) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (= |old(~pumpRunning~0)| 0) (not (< |old(~waterLevel~0)| 3))) (or (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (= |old(~waterLevel~0)| 2))) (or (and (<= |timeShift_processEnvironment_~tmp~5#1| 0) (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1)) .cse0 (= ~waterLevel~0 1) .cse1) (not (= |old(~waterLevel~0)| 1))) (not (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,047 INFO L895 garLoopResultBuilder]: At program point L780(lines 780 797) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (let ((.cse5 (= ~pumpRunning~0 0))) (or (and .cse5 .cse3) (and (not .cse5) (let ((.cse6 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse6) .cse3) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse6))))))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1) .cse2)) (or .cse0 (not (= |old(~waterLevel~0)| 2)) (and .cse1 .cse3 .cse2)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 .cse2) .cse4 (not (< |old(~waterLevel~0)| 3))) (not (= 0 ~systemActive~0))))) [2022-11-03 01:39:57,048 INFO L895 garLoopResultBuilder]: At program point L937(line 937) the Hoare annotation is: (let ((.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse6)) (.cse9 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1|))) (let ((.cse7 (= ~pumpRunning~0 0)) (.cse8 (= ~waterLevel~0 1)) (.cse10 (or .cse0 .cse9)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (let ((.cse2 (and (let ((.cse11 (or .cse0 .cse4))) (or (and .cse7 .cse8 .cse5 .cse11) (and .cse10 .cse5 .cse11))) .cse1))) (and (or .cse0 (not (= |old(~waterLevel~0)| 2)) .cse1) (or .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0) (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) .cse4) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))) .cse5) .cse6 (not (< |old(~waterLevel~0)| 3))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and (<= |timeShift_processEnvironment_~tmp~5#1| 0) (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1)) .cse7 .cse8 .cse9 .cse5) (and .cse7 .cse10 .cse1)) (or .cse2 (not .cse1))))))) [2022-11-03 01:39:57,048 INFO L899 garLoopResultBuilder]: For program point L937-1(line 937) no Hoare annotation was computed. [2022-11-03 01:39:57,048 INFO L895 garLoopResultBuilder]: At program point L54(line 54) the Hoare annotation is: (and (or (= |old(~pumpRunning~0)| 0) (not (< |old(~waterLevel~0)| 3))) (not (= |old(~waterLevel~0)| 1)) (not (= |old(~waterLevel~0)| 2)) (not (= 0 ~systemActive~0))) [2022-11-03 01:39:57,048 INFO L899 garLoopResultBuilder]: For program point L748-2(lines 744 766) no Hoare annotation was computed. [2022-11-03 01:39:57,049 INFO L895 garLoopResultBuilder]: At program point L922(line 922) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (and .cse0 .cse3)) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (and .cse0 (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1))) (or .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse1 (not (< |old(~waterLevel~0)| 3))) (or (not .cse2) (and (= ~pumpRunning~0 0) .cse3) (not (= |old(~waterLevel~0)| 2)))))) [2022-11-03 01:39:57,049 INFO L895 garLoopResultBuilder]: At program point L922-1(line 922) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret49#1|)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (and .cse2 .cse3 .cse4)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 (not (< |old(~waterLevel~0)| 3))) (or .cse1 (not (= 0 ~systemActive~0))) (or (not (= |old(~waterLevel~0)| 1)) (and .cse2 .cse3 (= ~waterLevel~0 1))) (or (not .cse0) (not (= |old(~waterLevel~0)| 2)) (and (= ~pumpRunning~0 0) .cse3 .cse4))))) [2022-11-03 01:39:57,049 INFO L895 garLoopResultBuilder]: At program point L790(line 790) the Hoare annotation is: (let ((.cse0 (<= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse1 (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (= |old(~pumpRunning~0)| 0) (not (< |old(~waterLevel~0)| 3))) (or (not (= |old(~waterLevel~0)| 2)) (and .cse0 .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1) .cse3) (not (= |old(~waterLevel~0)| 1))) (not (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,050 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 741 767) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse1 (and .cse0 .cse3)) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or (and .cse0 (= ~waterLevel~0 1)) (not (= |old(~waterLevel~0)| 1))) (or .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse1 (not (< |old(~waterLevel~0)| 3))) (or (not .cse2) (and (= ~pumpRunning~0 0) .cse3) (not (= |old(~waterLevel~0)| 2)))))) [2022-11-03 01:39:57,050 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 949) no Hoare annotation was computed. [2022-11-03 01:39:57,050 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 741 767) no Hoare annotation was computed. [2022-11-03 01:39:57,050 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 54) no Hoare annotation was computed. [2022-11-03 01:39:57,050 INFO L899 garLoopResultBuilder]: For program point L935(lines 935 952) no Hoare annotation was computed. [2022-11-03 01:39:57,051 INFO L895 garLoopResultBuilder]: At program point L935-1(lines 927 955) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse8)) (.cse5 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1|))) (let ((.cse3 (= 0 ~systemActive~0)) (.cse4 (= ~waterLevel~0 1)) (.cse2 (or .cse0 .cse5)) (.cse1 (= ~pumpRunning~0 0)) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse9 (and .cse3 (let ((.cse10 (or .cse0 .cse7))) (or (and .cse4 .cse10) (and .cse2 .cse10) (and (not .cse1) .cse10)))))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3) (and (<= |timeShift_processEnvironment_~tmp~5#1| 0) (< 0 (+ |timeShift_processEnvironment_~tmp~5#1| 1)) .cse1 .cse4 .cse5)) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~7#1| ~waterLevel~0) (let ((.cse6 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse6) .cse7) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse6)))) .cse8 .cse9 (not (< |old(~waterLevel~0)| 3))) (or .cse9 (not .cse3)) (or .cse0 (and .cse7 .cse5) (not (= |old(~waterLevel~0)| 2)))))))) [2022-11-03 01:39:57,051 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 61 90) no Hoare annotation was computed. [2022-11-03 01:39:57,051 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 61 90) the Hoare annotation is: true [2022-11-03 01:39:57,051 INFO L902 garLoopResultBuilder]: At program point L86(lines 61 90) the Hoare annotation is: true [2022-11-03 01:39:57,051 INFO L899 garLoopResultBuilder]: For program point L82(line 82) no Hoare annotation was computed. [2022-11-03 01:39:57,052 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 79) no Hoare annotation was computed. [2022-11-03 01:39:57,052 INFO L902 garLoopResultBuilder]: At program point L75-1(lines 75 79) the Hoare annotation is: true [2022-11-03 01:39:57,052 INFO L902 garLoopResultBuilder]: At program point L71-2(lines 71 85) the Hoare annotation is: true [2022-11-03 01:39:57,052 INFO L902 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: true [2022-11-03 01:39:57,052 INFO L899 garLoopResultBuilder]: For program point L67-1(line 67) no Hoare annotation was computed. [2022-11-03 01:39:57,052 INFO L895 garLoopResultBuilder]: At program point L151(lines 151 158) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| ~systemActive~0) (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-03 01:39:57,053 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2022-11-03 01:39:57,053 INFO L902 garLoopResultBuilder]: At program point L151-2(lines 151 158) the Hoare annotation is: true [2022-11-03 01:39:57,053 INFO L895 garLoopResultBuilder]: At program point L597-1(lines 597 603) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= |ULTIMATE.start_main_~tmp~0#1| 1) .cse0 (= ~waterLevel~0 1)) (and .cse0 (or (not (= ~pumpRunning~0 0)) (= 2 ~waterLevel~0)) (< ~waterLevel~0 3)) (and .cse0 (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,053 INFO L895 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= |ULTIMATE.start_main_~tmp~0#1| 1) .cse0 (= ~waterLevel~0 1)) (and .cse0 (or (not (= ~pumpRunning~0 0)) (= 2 ~waterLevel~0)) (< ~waterLevel~0 3)) (and .cse0 (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,054 INFO L895 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~pumpRunning~0 0)) .cse0 (< ~waterLevel~0 3)) (and .cse0 (= ~waterLevel~0 1)) (and .cse0 (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,054 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 01:39:57,054 INFO L899 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2022-11-03 01:39:57,054 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 01:39:57,055 INFO L895 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= |ULTIMATE.start_main_~tmp~0#1| 1) .cse0 (= ~waterLevel~0 1)) (and .cse0 (or (not (= ~pumpRunning~0 0)) (= 2 ~waterLevel~0)) (< ~waterLevel~0 3)) (and .cse0 (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,055 INFO L902 garLoopResultBuilder]: At program point L628(lines 567 632) the Hoare annotation is: true [2022-11-03 01:39:57,055 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2022-11-03 01:39:57,055 INFO L899 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2022-11-03 01:39:57,055 INFO L895 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2022-11-03 01:39:57,055 INFO L895 garLoopResultBuilder]: At program point L613-2(lines 607 620) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= |ULTIMATE.start_main_~tmp~0#1| 1) .cse0 (= ~waterLevel~0 1)) (and (= 2 ~waterLevel~0) .cse0) (and (not (= ~pumpRunning~0 0)) .cse0 (< ~waterLevel~0 3)) (and .cse0 (= 0 ~systemActive~0)))) [2022-11-03 01:39:57,056 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 653 664) no Hoare annotation was computed. [2022-11-03 01:39:57,056 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 653 664) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (= ~pumpRunning~0 0) .cse0 (not (< |old(~waterLevel~0)| 3))) (or (and (not (= |old(~waterLevel~0)| 1)) (not (= |old(~waterLevel~0)| 2))) .cse0) (or .cse0 (not (= 0 ~systemActive~0))))) [2022-11-03 01:39:57,056 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 828 836) no Hoare annotation was computed. [2022-11-03 01:39:57,056 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 828 836) the Hoare annotation is: true [2022-11-03 01:39:57,060 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:39:57,062 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:39:57,087 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:39:57 BoogieIcfgContainer [2022-11-03 01:39:57,087 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:39:57,087 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:39:57,088 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:39:57,088 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:39:57,088 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:38:46" (3/4) ... [2022-11-03 01:39:57,091 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:39:57,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 01:39:57,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 01:39:57,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 01:39:57,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 01:39:57,097 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 01:39:57,098 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-03 01:39:57,104 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2022-11-03 01:39:57,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-03 01:39:57,105 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 01:39:57,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 01:39:57,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:39:57,106 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:39:57,107 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:39:57,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((\old(pumpRunning) == 0 || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && (((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel) || !(0 == systemActive))) && (!(\old(waterLevel) == 1) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && waterLevel == 1))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) [2022-11-03 01:39:57,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((0 == systemActive && pumpRunning == switchedOnBeforeTS) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((\old(pumpRunning) == 0 || ((pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || ((0 == systemActive && pumpRunning == switchedOnBeforeTS) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) || !(\old(waterLevel) < 3))) && (((((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && 0 == systemActive))) && (((!(pumpRunning == 0) && 2 == waterLevel) || !(\old(waterLevel) == 2)) || (pumpRunning == switchedOnBeforeTS && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) [2022-11-03 01:39:57,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && (!(\old(pumpRunning) == 0) || \old(waterLevel) == tmp)) && 0 == systemActive)) || ((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && \old(waterLevel) == tmp)) && (((((pumpRunning == \old(pumpRunning) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) || \old(pumpRunning) == 0) || (0 == systemActive && (((waterLevel == 1 && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) || ((!(\old(pumpRunning) == 0) || \old(waterLevel) == tmp) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) || (!(pumpRunning == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))))) || !(\old(waterLevel) < 3))) && ((0 == systemActive && (((waterLevel == 1 && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) || ((!(\old(pumpRunning) == 0) || \old(waterLevel) == tmp) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) || (!(pumpRunning == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)))) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && \old(waterLevel) == tmp)) || !(\old(waterLevel) == 2)) [2022-11-03 01:39:57,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && ((((pumpRunning == \old(pumpRunning) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))))) && pumpRunning == switchedOnBeforeTS) || \old(pumpRunning) == 0) || !(\old(waterLevel) < 3))) && !(0 == systemActive) [2022-11-03 01:39:57,132 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(pumpRunning) == 0 || !(\old(waterLevel) < 3)) && !(\old(waterLevel) == 1)) && !(\old(waterLevel) == 2)) && !(0 == systemActive) [2022-11-03 01:39:57,133 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && (((!(\old(pumpRunning) == 0) || (!(pumpRunning == 0) && 2 == waterLevel)) || !(\old(waterLevel) == 2)) || (((tmp <= 0 && 0 < tmp + 1) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && !(0 == systemActive)) && ((\old(pumpRunning) == 0 || ((pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) [2022-11-03 01:39:57,134 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((\old(pumpRunning) == 0 || !(\old(waterLevel) < 3)) && (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2))) && (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1))) && !(0 == systemActive) [2022-11-03 01:39:57,162 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:39:57,162 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:39:57,162 INFO L158 Benchmark]: Toolchain (without parser) took 72383.37ms. Allocated memory was 111.1MB in the beginning and 415.2MB in the end (delta: 304.1MB). Free memory was 75.3MB in the beginning and 288.2MB in the end (delta: -212.9MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,163 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:39:57,163 INFO L158 Benchmark]: CACSL2BoogieTranslator took 506.78ms. Allocated memory is still 111.1MB. Free memory was 75.1MB in the beginning and 79.4MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,163 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.23ms. Allocated memory is still 111.1MB. Free memory was 79.4MB in the beginning and 77.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,164 INFO L158 Benchmark]: Boogie Preprocessor took 36.35ms. Allocated memory is still 111.1MB. Free memory was 77.2MB in the beginning and 75.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,165 INFO L158 Benchmark]: RCFGBuilder took 813.22ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 46.3MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,166 INFO L158 Benchmark]: TraceAbstraction took 70887.92ms. Allocated memory was 111.1MB in the beginning and 415.2MB in the end (delta: 304.1MB). Free memory was 45.5MB in the beginning and 293.4MB in the end (delta: -248.0MB). Peak memory consumption was 215.5MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,167 INFO L158 Benchmark]: Witness Printer took 74.54ms. Allocated memory is still 415.2MB. Free memory was 293.4MB in the beginning and 288.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 01:39:57,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 111.1MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 506.78ms. Allocated memory is still 111.1MB. Free memory was 75.1MB in the beginning and 79.4MB in the end (delta: -4.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.23ms. Allocated memory is still 111.1MB. Free memory was 79.4MB in the beginning and 77.2MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.35ms. Allocated memory is still 111.1MB. Free memory was 77.2MB in the beginning and 75.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 813.22ms. Allocated memory is still 111.1MB. Free memory was 75.2MB in the beginning and 46.3MB in the end (delta: 28.9MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 70887.92ms. Allocated memory was 111.1MB in the beginning and 415.2MB in the end (delta: 304.1MB). Free memory was 45.5MB in the beginning and 293.4MB in the end (delta: -248.0MB). Peak memory consumption was 215.5MB. Max. memory is 16.1GB. * Witness Printer took 74.54ms. Allocated memory is still 415.2MB. Free memory was 293.4MB in the beginning and 288.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 54]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 70.8s, OverallIterations: 12, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1411 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1386 mSDsluCounter, 2226 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2000 mSDsCounter, 716 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2723 IncrementalHoareTripleChecker+Invalid, 3439 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 716 mSolverCounterUnsat, 619 mSDtfsCounter, 2723 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 580 GetRequests, 378 SyntacticMatches, 1 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2994 ImplicationChecksByTransitivity, 19.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=254occurred in iteration=11, InterpolantAutomatonStates: 136, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 529 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 651 PreInvPairs, 811 NumberOfFragments, 1342 HoareAnnotationTreeSize, 651 FomulaSimplifications, 44381 FormulaSimplificationTreeSizeReduction, 3.5s HoareSimplificationTime, 31 FomulaSimplificationsInter, 45754 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 655 NumberOfCodeBlocks, 655 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 769 ConstructedInterpolants, 0 QuantifiedInterpolants, 2740 SizeOfPredicates, 16 NumberOfNonLiveVariables, 925 ConjunctsInSsa, 46 ConjunctsInUnsatCore, 16 InterpolantComputations, 10 PerfectInterpolantSequences, 400/436 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 927]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && (!(\old(pumpRunning) == 0) || \old(waterLevel) == tmp)) && 0 == systemActive)) || ((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && \old(waterLevel) == tmp)) && (((((pumpRunning == \old(pumpRunning) && tmp == waterLevel) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) || \old(pumpRunning) == 0) || (0 == systemActive && (((waterLevel == 1 && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) || ((!(\old(pumpRunning) == 0) || \old(waterLevel) == tmp) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) || (!(pumpRunning == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))))) || !(\old(waterLevel) < 3))) && ((0 == systemActive && (((waterLevel == 1 && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) || ((!(\old(pumpRunning) == 0) || \old(waterLevel) == tmp) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) || (!(pumpRunning == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)))) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || (\old(waterLevel) == waterLevel && \old(waterLevel) == tmp)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (((\old(pumpRunning) == 0 || !(\old(waterLevel) < 3)) && !(\old(waterLevel) == 1)) && !(\old(waterLevel) == 2)) && !(0 == systemActive) - InvariantResult [Line: 784]: Loop Invariant Derived loop invariant: (((\old(pumpRunning) == 0 || !(\old(waterLevel) < 3)) && (((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2))) && (((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1))) && !(0 == systemActive) - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 776]: Loop Invariant Derived loop invariant: ((((((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && (((!(\old(pumpRunning) == 0) || (!(pumpRunning == 0) && 2 == waterLevel)) || !(\old(waterLevel) == 2)) || (((tmp <= 0 && 0 < tmp + 1) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && !(0 == systemActive)) && ((\old(pumpRunning) == 0 || ((pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 780]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS))) && ((((pumpRunning == \old(pumpRunning) && ((pumpRunning == 0 && \old(waterLevel) == waterLevel) || (!(pumpRunning == 0) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))))) && pumpRunning == switchedOnBeforeTS) || \old(pumpRunning) == 0) || !(\old(waterLevel) < 3))) && !(0 == systemActive) - InvariantResult [Line: 71]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: (((tmp == 1 && splverifierCounter == 0) && waterLevel == 1) || ((splverifierCounter == 0 && (!(pumpRunning == 0) || 2 == waterLevel)) && waterLevel < 3)) || (splverifierCounter == 0 && 0 == systemActive) - InvariantResult [Line: 922]: Loop Invariant Derived loop invariant: ((((\old(pumpRunning) == 0 || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) < 3)) && (((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel) || !(0 == systemActive))) && (!(\old(waterLevel) == 1) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && waterLevel == 1))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 2)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (((tmp == 1 && splverifierCounter == 0) && waterLevel == 1) || ((splverifierCounter == 0 && (!(pumpRunning == 0) || 2 == waterLevel)) && waterLevel < 3)) || (splverifierCounter == 0 && 0 == systemActive) - InvariantResult [Line: 151]: Loop Invariant Derived loop invariant: (((tmp == systemActive && pumpRunning == 0) && tmp == 1) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 755]: Loop Invariant Derived loop invariant: (((((0 == systemActive && pumpRunning == switchedOnBeforeTS) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) || !(0 == systemActive)) && (((\old(pumpRunning) == 0 || ((pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && pumpRunning == switchedOnBeforeTS)) || ((0 == systemActive && pumpRunning == switchedOnBeforeTS) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) || !(\old(waterLevel) < 3))) && (((((((tmp <= 0 && 0 < tmp + 1) && pumpRunning == 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && 0 == systemActive))) && (((!(pumpRunning == 0) && 2 == waterLevel) || !(\old(waterLevel) == 2)) || (pumpRunning == switchedOnBeforeTS && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel))) - InvariantResult [Line: 61]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 01:39:57,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3881c2e1-0324-4d9c-a5cf-b02f1035b244/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE