./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:09:36,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:09:36,936 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:09:36,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:09:36,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:09:36,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:09:36,987 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:09:36,989 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:09:36,991 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:09:36,992 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:09:36,993 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:09:37,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:09:37,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:09:37,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:09:37,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:09:37,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:09:37,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:09:37,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:09:37,020 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:09:37,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:09:37,032 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:09:37,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:09:37,037 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:09:37,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:09:37,045 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:09:37,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:09:37,050 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:09:37,051 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:09:37,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:09:37,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:09:37,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:09:37,056 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:09:37,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:09:37,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:09:37,062 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:09:37,063 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:09:37,064 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:09:37,064 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:09:37,064 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:09:37,065 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:09:37,066 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:09:37,067 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:09:37,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:09:37,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:09:37,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:09:37,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:09:37,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:09:37,107 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:09:37,107 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:09:37,108 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:09:37,108 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:09:37,108 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:09:37,109 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:09:37,109 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:09:37,110 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:09:37,110 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:09:37,110 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:09:37,111 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:09:37,111 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:09:37,111 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:09:37,112 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:09:37,112 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:09:37,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:09:37,113 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:09:37,113 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:09:37,115 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:09:37,115 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:09:37,115 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:09:37,115 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:09:37,116 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:09:37,116 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:09:37,116 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:09:37,116 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:09:37,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:09:37,117 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:09:37,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:09:37,118 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:09:37,119 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:09:37,119 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:09:37,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:09:37,119 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:09:37,120 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:09:37,120 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:09:37,120 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_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 76f5874bdc2210da6be360b9991ed804689b1623a0180577df5607e0ad5d02da [2022-11-19 07:09:37,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:09:37,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:09:37,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:09:37,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:09:37,523 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:09:37,526 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-19 07:09:37,643 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/data/005da86a4/6574d1529de947298d7ce3c81eb30e0b/FLAG1fff64116 [2022-11-19 07:09:38,287 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:09:38,287 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c [2022-11-19 07:09:38,300 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/data/005da86a4/6574d1529de947298d7ce3c81eb30e0b/FLAG1fff64116 [2022-11-19 07:09:38,593 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/data/005da86a4/6574d1529de947298d7ce3c81eb30e0b [2022-11-19 07:09:38,599 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:09:38,602 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:09:38,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:09:38,607 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:09:38,612 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:09:38,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:38" (1/1) ... [2022-11-19 07:09:38,616 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6edb502c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:38, skipping insertion in model container [2022-11-19 07:09:38,616 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:09:38" (1/1) ... [2022-11-19 07:09:38,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:09:38,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:09:39,010 WARN L234 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_adac42dc-bd00-4d02-8e72-df66b130b2ba/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-19 07:09:39,108 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:09:39,117 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:09:39,138 WARN L234 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_adac42dc-bd00-4d02-8e72-df66b130b2ba/sv-benchmarks/c/product-lines/minepump_spec5_product42.cil.c[3693,3706] [2022-11-19 07:09:39,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:09:39,208 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:09:39,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39 WrapperNode [2022-11-19 07:09:39,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:09:39,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:09:39,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:09:39,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:09:39,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,285 INFO L138 Inliner]: procedures = 56, calls = 99, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 198 [2022-11-19 07:09:39,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:09:39,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:09:39,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:09:39,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:09:39,304 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,304 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,322 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,332 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,344 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,346 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,349 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:09:39,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:09:39,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:09:39,350 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:09:39,356 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (1/1) ... [2022-11-19 07:09:39,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:09:39,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:09:39,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:09:39,398 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:09:39,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:09:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:09:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:09:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:09:39,451 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:09:39,451 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:09:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:09:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:09:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:09:39,452 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 07:09:39,452 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 07:09:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:09:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:09:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:09:39,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:09:39,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:09:39,536 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:09:39,539 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:09:39,813 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:09:40,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:09:40,065 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:09:40,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:40 BoogieIcfgContainer [2022-11-19 07:09:40,068 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:09:40,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:09:40,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:09:40,075 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:09:40,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:09:38" (1/3) ... [2022-11-19 07:09:40,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ebd4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:40, skipping insertion in model container [2022-11-19 07:09:40,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:09:39" (2/3) ... [2022-11-19 07:09:40,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70ebd4f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:09:40, skipping insertion in model container [2022-11-19 07:09:40,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:40" (3/3) ... [2022-11-19 07:09:40,079 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product42.cil.c [2022-11-19 07:09:40,099 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:09:40,099 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:09:40,154 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:09:40,161 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;@7580a18c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:09:40,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:09:40,166 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) [2022-11-19 07:09:40,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:09:40,176 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:40,177 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] [2022-11-19 07:09:40,177 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:40,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:40,184 INFO L85 PathProgramCache]: Analyzing trace with hash -388126214, now seen corresponding path program 1 times [2022-11-19 07:09:40,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:40,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641675977] [2022-11-19 07:09:40,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:40,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:40,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:40,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:09:40,407 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:40,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641675977] [2022-11-19 07:09:40,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641675977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:09:40,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:09:40,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:09:40,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006350638] [2022-11-19 07:09:40,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:09:40,416 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:09:40,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:40,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:09:40,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:09:40,449 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) [2022-11-19 07:09:40,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:40,521 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-19 07:09:40,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:09:40,524 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 [2022-11-19 07:09:40,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:40,535 INFO L225 Difference]: With dead ends: 100 [2022-11-19 07:09:40,535 INFO L226 Difference]: Without dead ends: 46 [2022-11-19 07:09:40,539 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 [2022-11-19 07:09:40,543 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:40,544 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:09:40,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-19 07:09:40,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-19 07:09:40,617 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) [2022-11-19 07:09:40,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-19 07:09:40,626 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-19 07:09:40,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:40,626 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-19 07:09:40,628 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) [2022-11-19 07:09:40,628 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-19 07:09:40,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:09:40,632 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:40,632 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] [2022-11-19 07:09:40,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:09:40,634 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:40,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:40,635 INFO L85 PathProgramCache]: Analyzing trace with hash 1059750746, now seen corresponding path program 1 times [2022-11-19 07:09:40,635 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:40,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039046640] [2022-11-19 07:09:40,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:40,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:40,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:40,924 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:09:40,924 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:40,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039046640] [2022-11-19 07:09:40,925 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039046640] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:09:40,925 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:09:40,925 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:09:40,926 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098948585] [2022-11-19 07:09:40,926 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:09:40,927 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:09:40,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:40,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:09:40,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:09:40,928 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 6 states have internal predecessors, (18), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:09:41,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:41,674 INFO L93 Difference]: Finished difference Result 195 states and 300 transitions. [2022-11-19 07:09:41,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-19 07:09:41,678 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 [2022-11-19 07:09:41,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:41,686 INFO L225 Difference]: With dead ends: 195 [2022-11-19 07:09:41,687 INFO L226 Difference]: Without dead ends: 109 [2022-11-19 07:09:41,695 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=271, Unknown=0, NotChecked=0, Total=342 [2022-11-19 07:09:41,698 INFO L413 NwaCegarLoop]: 129 mSDtfsCounter, 123 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 576 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 576 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:41,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 438 Invalid, 617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 576 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-19 07:09:41,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-19 07:09:41,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 105. [2022-11-19 07:09:41,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 67 states have (on average 1.2238805970149254) internal successors, (82), 76 states have internal predecessors, (82), 24 states have call successors, (24), 16 states have call predecessors, (24), 13 states have return successors, (39), 19 states have call predecessors, (39), 21 states have call successors, (39) [2022-11-19 07:09:41,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 145 transitions. [2022-11-19 07:09:41,736 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 145 transitions. Word has length 24 [2022-11-19 07:09:41,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:41,736 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 145 transitions. [2022-11-19 07:09:41,737 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) [2022-11-19 07:09:41,737 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 145 transitions. [2022-11-19 07:09:41,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-19 07:09:41,753 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:41,753 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] [2022-11-19 07:09:41,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:09:41,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:41,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:41,755 INFO L85 PathProgramCache]: Analyzing trace with hash -2078951607, now seen corresponding path program 1 times [2022-11-19 07:09:41,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:41,755 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575688578] [2022-11-19 07:09:41,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:41,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:41,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:42,227 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:09:42,227 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:42,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575688578] [2022-11-19 07:09:42,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575688578] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:09:42,228 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:09:42,228 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:09:42,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730548339] [2022-11-19 07:09:42,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:09:42,229 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:09:42,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:42,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:09:42,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:09:42,231 INFO L87 Difference]: Start difference. First operand 105 states and 145 transitions. Second operand has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:09:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:42,417 INFO L93 Difference]: Finished difference Result 305 states and 443 transitions. [2022-11-19 07:09:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-19 07:09:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-19 07:09:42,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:42,422 INFO L225 Difference]: With dead ends: 305 [2022-11-19 07:09:42,422 INFO L226 Difference]: Without dead ends: 183 [2022-11-19 07:09:42,424 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:09:42,425 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 102 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:42,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 210 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:09:42,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2022-11-19 07:09:42,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 148. [2022-11-19 07:09:42,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.21875) internal successors, (117), 107 states have internal predecessors, (117), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2022-11-19 07:09:42,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 196 transitions. [2022-11-19 07:09:42,460 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 196 transitions. Word has length 27 [2022-11-19 07:09:42,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:42,460 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 196 transitions. [2022-11-19 07:09:42,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-19 07:09:42,461 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 196 transitions. [2022-11-19 07:09:42,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-19 07:09:42,462 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:42,463 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] [2022-11-19 07:09:42,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:09:42,463 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:42,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:42,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2067722784, now seen corresponding path program 1 times [2022-11-19 07:09:42,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:42,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106850226] [2022-11-19 07:09:42,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:42,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:42,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:42,842 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:09:42,842 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:42,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106850226] [2022-11-19 07:09:42,843 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106850226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:09:42,843 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:09:42,843 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:09:42,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618517543] [2022-11-19 07:09:42,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:09:42,846 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:09:42,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:42,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:09:42,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:09:42,848 INFO L87 Difference]: Start difference. First operand 148 states and 196 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-19 07:09:43,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:43,475 INFO L93 Difference]: Finished difference Result 405 states and 615 transitions. [2022-11-19 07:09:43,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-19 07:09:43,476 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 [2022-11-19 07:09:43,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:43,478 INFO L225 Difference]: With dead ends: 405 [2022-11-19 07:09:43,479 INFO L226 Difference]: Without dead ends: 155 [2022-11-19 07:09:43,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-19 07:09:43,482 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 169 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:43,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 361 Invalid, 413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:09:43,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-19 07:09:43,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 148. [2022-11-19 07:09:43,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 96 states have (on average 1.2083333333333333) internal successors, (116), 107 states have internal predecessors, (116), 32 states have call successors, (32), 23 states have call predecessors, (32), 19 states have return successors, (47), 25 states have call predecessors, (47), 29 states have call successors, (47) [2022-11-19 07:09:43,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 195 transitions. [2022-11-19 07:09:43,515 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 195 transitions. Word has length 30 [2022-11-19 07:09:43,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:43,515 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 195 transitions. [2022-11-19 07:09:43,516 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) [2022-11-19 07:09:43,516 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 195 transitions. [2022-11-19 07:09:43,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-19 07:09:43,518 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:43,518 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] [2022-11-19 07:09:43,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:09:43,518 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:43,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:43,519 INFO L85 PathProgramCache]: Analyzing trace with hash 795708959, now seen corresponding path program 1 times [2022-11-19 07:09:43,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:43,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807376525] [2022-11-19 07:09:43,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:43,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:43,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:43,828 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:09:43,829 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:43,829 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807376525] [2022-11-19 07:09:43,829 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807376525] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:09:43,831 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1868948658] [2022-11-19 07:09:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:43,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:09:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:09:43,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:09:43,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:09:43,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:43,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 27 conjunts are in the unsatisfiable core [2022-11-19 07:09:43,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:09:44,253 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 18 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:09:44,253 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:09:44,822 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-19 07:09:44,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1868948658] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:09:44,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [751728011] [2022-11-19 07:09:44,848 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-19 07:09:44,848 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:09:44,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:09:44,866 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:09:44,866 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:09:47,988 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 57 for LOIs [2022-11-19 07:09:48,003 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 29 for LOIs [2022-11-19 07:09:48,490 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 55 for LOIs [2022-11-19 07:09:48,510 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:09:54,599 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2721#(and (<= 1 ~pumpRunning~0) (<= |old(~waterLevel~0)| 2147483647) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2147483647) (<= |timeShift_isMethaneLevelCritical_~retValue_acc~6#1| 0) (<= 1 |timeShift_isHighWaterLevel_~tmp___0~2#1|) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_#res#1|) (<= ~pumpRunning~0 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (<= |timeShift_getWaterLevel_~retValue_acc~7#1| 2147483647) (<= 0 |timeShift_activatePump_~tmp~7#1|) (= ~methaneLevelCritical~0 0) (<= |timeShift_isHighWaterLevel_~tmp~8#1| 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~11#1| 1) (<= 0 |timeShift_isMethaneLevelCritical_~retValue_acc~6#1|) (= ~head~0.offset 0) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (<= |timeShift_isHighWaterLevel_~tmp___0~2#1| 1) (<= 0 |timeShift_isHighWaterLevel_~tmp~8#1|) (<= 2 ~waterLevel~0) (<= |timeShift_isMethaneLevelCritical_#res#1| 0) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (<= 0 |timeShift_isMethaneAlarm_~retValue_acc~9#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~8#1|) (<= |timeShift_isMethaneAlarm_#res#1| 0) (<= 2 |timeShift_getWaterLevel_~retValue_acc~7#1|) (<= 2 |old(~waterLevel~0)|) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~8#1| 0) (<= ~waterLevel~0 2147483647) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~11#1|) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (<= 0 |timeShift_isMethaneAlarm_#res#1|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1|) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (<= |timeShift_processEnvironment_~tmp~6#1| 1) (<= |timeShift_isMethaneAlarm_~retValue_acc~9#1| 0) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_activatePump_~tmp~7#1| 0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:09:54,599 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:09:54,600 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:09:54,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2022-11-19 07:09:54,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020145930] [2022-11-19 07:09:54,600 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:09:54,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-19 07:09:54,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:54,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-19 07:09:54,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=1402, Unknown=0, NotChecked=0, Total=1640 [2022-11-19 07:09:54,606 INFO L87 Difference]: Start difference. First operand 148 states and 195 transitions. Second operand has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-19 07:09:56,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:56,579 INFO L93 Difference]: Finished difference Result 663 states and 1003 transitions. [2022-11-19 07:09:56,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-19 07:09:56,580 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) Word has length 47 [2022-11-19 07:09:56,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:56,590 INFO L225 Difference]: With dead ends: 663 [2022-11-19 07:09:56,591 INFO L226 Difference]: Without dead ends: 194 [2022-11-19 07:09:56,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1143 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=584, Invalid=3448, Unknown=0, NotChecked=0, Total=4032 [2022-11-19 07:09:56,607 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 602 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 992 mSolverCounterSat, 575 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 606 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 575 IncrementalHoareTripleChecker+Valid, 992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:56,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [606 Valid, 708 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [575 Valid, 992 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-11-19 07:09:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2022-11-19 07:09:56,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 155. [2022-11-19 07:09:56,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 113 states have internal predecessors, (118), 33 states have call successors, (33), 23 states have call predecessors, (33), 20 states have return successors, (50), 27 states have call predecessors, (50), 30 states have call successors, (50) [2022-11-19 07:09:56,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 201 transitions. [2022-11-19 07:09:56,683 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 201 transitions. Word has length 47 [2022-11-19 07:09:56,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:56,685 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 201 transitions. [2022-11-19 07:09:56,685 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 4.6875) internal successors, (75), 17 states have internal predecessors, (75), 7 states have call successors, (14), 6 states have call predecessors, (14), 7 states have return successors, (13), 6 states have call predecessors, (13), 7 states have call successors, (13) [2022-11-19 07:09:56,685 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 201 transitions. [2022-11-19 07:09:56,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-19 07:09:56,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:09:56,693 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:09:56,705 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:09:56,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:09:56,894 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:09:56,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:09:56,895 INFO L85 PathProgramCache]: Analyzing trace with hash -269337097, now seen corresponding path program 1 times [2022-11-19 07:09:56,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:09:56,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130643738] [2022-11-19 07:09:56,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:56,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:09:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:57,016 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:09:57,017 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:09:57,017 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130643738] [2022-11-19 07:09:57,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130643738] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:09:57,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1723655714] [2022-11-19 07:09:57,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:09:57,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:09:57,018 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:09:57,019 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:09:57,054 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:09:57,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:09:57,151 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-19 07:09:57,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:09:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:09:57,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-19 07:09:57,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1723655714] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:09:57,203 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-19 07:09:57,203 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-19 07:09:57,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475266471] [2022-11-19 07:09:57,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:09:57,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-19 07:09:57,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:09:57,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-19 07:09:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:09:57,206 INFO L87 Difference]: Start difference. First operand 155 states and 201 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:09:57,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:09:57,255 INFO L93 Difference]: Finished difference Result 172 states and 218 transitions. [2022-11-19 07:09:57,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:09:57,256 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 52 [2022-11-19 07:09:57,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:09:57,258 INFO L225 Difference]: With dead ends: 172 [2022-11-19 07:09:57,258 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:09:57,259 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:09:57,264 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 22 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:09:57,266 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 27 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:09:57,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:09:57,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:09:57,268 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) [2022-11-19 07:09:57,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:09:57,268 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 52 [2022-11-19 07:09:57,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:09:57,269 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:09:57,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 3 states have internal predecessors, (34), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-19 07:09:57,269 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:09:57,269 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:09:57,272 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:09:57,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:09:57,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:09:57,481 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:10:01,297 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 815 821) no Hoare annotation was computed. [2022-11-19 07:10:01,297 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 815 821) the Hoare annotation is: true [2022-11-19 07:10:01,298 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 647 658) the Hoare annotation is: true [2022-11-19 07:10:01,298 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 647 658) no Hoare annotation was computed. [2022-11-19 07:10:01,298 INFO L899 garLoopResultBuilder]: For program point L795-2(lines 791 813) no Hoare annotation was computed. [2022-11-19 07:10:01,298 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-11-19 07:10:01,299 INFO L895 garLoopResultBuilder]: At program point L837(line 837) the Hoare annotation is: (let ((.cse0 (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1))) (.cse1 (<= |timeShift_processEnvironment_~tmp~6#1| 0)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= |old(~waterLevel~0)| 1)) (and .cse0 .cse1 (= ~waterLevel~0 1) .cse2)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 (= |old(~waterLevel~0)| ~waterLevel~0) .cse2) (not (= |old(~waterLevel~0)| 2))))) [2022-11-19 07:10:01,299 INFO L895 garLoopResultBuilder]: At program point L82(line 82) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2))) (and (or (not (= |old(~waterLevel~0)| 2)) .cse0) (or .cse1 (and (= ~waterLevel~0 1) .cse2) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse1 (not (= 1 ~systemActive~0)) .cse0)))) [2022-11-19 07:10:01,300 INFO L899 garLoopResultBuilder]: For program point L82-1(line 82) no Hoare annotation was computed. [2022-11-19 07:10:01,300 INFO L895 garLoopResultBuilder]: At program point L842(line 842) the Hoare annotation is: (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or (not (< 1 |old(~waterLevel~0)|)) .cse0 (not (<= |old(~waterLevel~0)| 2))))) [2022-11-19 07:10:01,300 INFO L895 garLoopResultBuilder]: At program point L842-1(lines 823 847) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse1)) (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-19 07:10:01,300 INFO L895 garLoopResultBuilder]: At program point L211(line 211) the Hoare annotation is: (and (not (= |old(~waterLevel~0)| 1)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 2))) [2022-11-19 07:10:01,301 INFO L895 garLoopResultBuilder]: At program point L67(line 67) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (= ~waterLevel~0 1)) (or .cse0 (not .cse2) (= ~pumpRunning~0 0) .cse3) (or .cse0 .cse2 .cse4) (or .cse0 .cse5 (and .cse1 .cse2)) (or .cse3 .cse4) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse5))) [2022-11-19 07:10:01,301 INFO L895 garLoopResultBuilder]: At program point L67-1(line 67) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= |timeShift___utac_acc__Specification5_spec__2_#t~ret4#1| ~pumpRunning~0)) (.cse1 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse0 (not .cse1) .cse2 .cse3) (or (and .cse4 .cse5) .cse3) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse5)) (or .cse0 (and (not .cse2) .cse4 .cse5) .cse1))) [2022-11-19 07:10:01,302 INFO L895 garLoopResultBuilder]: At program point L802-1(lines 802 808) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse0) (not (= |old(~waterLevel~0)| 1))) (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse1 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-19 07:10:01,302 INFO L895 garLoopResultBuilder]: At program point L831(lines 831 839) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~waterLevel~0)| 1)) (and (< 0 (+ |timeShift_processEnvironment_~tmp~6#1| 1)) (<= |timeShift_processEnvironment_~tmp~6#1| 0) (= ~waterLevel~0 1) .cse0)) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (= |old(~pumpRunning~0)| 0)))) [2022-11-19 07:10:01,302 INFO L895 garLoopResultBuilder]: At program point L827(lines 827 844) the Hoare annotation is: (let ((.cse7 (= ~pumpRunning~0 0))) (let ((.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse1 (= ~waterLevel~0 1)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse3 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse0 (not .cse7)) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (and (or (and (or .cse0 .cse1) .cse2) (not (= |old(~waterLevel~0)| 1))) (or .cse3 (not .cse4) .cse5 .cse6) (or .cse5 (and (or .cse7 .cse1) (or .cse0 .cse6) .cse2)) (or .cse3 (and .cse0 .cse2) .cse4)))) [2022-11-19 07:10:01,302 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 94) no Hoare annotation was computed. [2022-11-19 07:10:01,303 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 97) no Hoare annotation was computed. [2022-11-19 07:10:01,303 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 788 814) the Hoare annotation is: (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (not (= ~switchedOnBeforeTS~0 0)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (= ~waterLevel~0 1)) (or .cse0 (not .cse2) (= ~pumpRunning~0 0) .cse3) (or .cse0 .cse2 .cse4) (or .cse0 .cse5 (and .cse1 .cse2)) (or .cse3 .cse4) (or .cse0 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse5))) [2022-11-19 07:10:01,303 INFO L895 garLoopResultBuilder]: At program point L80-1(lines 72 100) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse1 (not (= |old(~waterLevel~0)| 1))) (.cse2 (and (not (= ~switchedOnBeforeTS~0 0)) .cse0))) (and (or (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse0) .cse1) (or (not (= |old(~waterLevel~0)| 2)) .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse2 (= |old(~switchedOnBeforeTS~0)| 0)) (or (= |timeShift___utac_acc__Specification5_spec__3_~tmp~0#1| ~waterLevel~0) .cse1 (not (= 1 ~systemActive~0)) .cse2)))) [2022-11-19 07:10:01,304 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 788 814) no Hoare annotation was computed. [2022-11-19 07:10:01,304 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 211) no Hoare annotation was computed. [2022-11-19 07:10:01,304 INFO L902 garLoopResultBuilder]: At program point L129(lines 104 133) the Hoare annotation is: true [2022-11-19 07:10:01,304 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 104 133) no Hoare annotation was computed. [2022-11-19 07:10:01,304 INFO L899 garLoopResultBuilder]: For program point L125(line 125) no Hoare annotation was computed. [2022-11-19 07:10:01,305 INFO L895 garLoopResultBuilder]: At program point cleanupENTRY(lines 104 133) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (= ~waterLevel~0 1)) (or .cse1 .cse0 .cse2) (or .cse1 (not .cse3) (= ~pumpRunning~0 0) .cse4) (or .cse1 .cse3 .cse5) (or .cse4 .cse5) (or .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-19 07:10:01,305 INFO L899 garLoopResultBuilder]: For program point L118(lines 118 122) no Hoare annotation was computed. [2022-11-19 07:10:01,305 INFO L895 garLoopResultBuilder]: At program point L118-1(lines 118 122) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse1) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-19 07:10:01,306 INFO L895 garLoopResultBuilder]: At program point L114-2(lines 114 128) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (let ((.cse0 (and (not (= ~switchedOnBeforeTS~0 0)) .cse1))) (and (or (not (= |old(~waterLevel~0)| 2)) (= |old(~waterLevel~0)| ~waterLevel~0) .cse0) (or (not (= |old(~waterLevel~0)| 1)) (and (= ~waterLevel~0 1) .cse1) .cse0) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse0 (= |old(~switchedOnBeforeTS~0)| 0))))) [2022-11-19 07:10:01,306 INFO L895 garLoopResultBuilder]: At program point L110(line 110) the Hoare annotation is: (let ((.cse0 (not (= |old(~waterLevel~0)| 1))) (.cse3 (= |old(~pumpRunning~0)| 0)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or .cse0 (= ~waterLevel~0 1)) (or .cse1 .cse0 .cse2) (or .cse1 (not .cse3) (= ~pumpRunning~0 0) .cse4) (or .cse1 .cse3 .cse5) (or .cse4 .cse5) (or .cse1 (and (not (= ~switchedOnBeforeTS~0 0)) .cse2) (= |old(~switchedOnBeforeTS~0)| 0)) (or .cse1 (not (< 1 |old(~waterLevel~0)|)) (not (<= |old(~waterLevel~0)| 2)) .cse2))) [2022-11-19 07:10:01,306 INFO L899 garLoopResultBuilder]: For program point L110-1(line 110) no Hoare annotation was computed. [2022-11-19 07:10:01,306 INFO L899 garLoopResultBuilder]: For program point L746(lines 746 752) no Hoare annotation was computed. [2022-11-19 07:10:01,307 INFO L895 garLoopResultBuilder]: At program point L746-1(lines 746 752) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-19 07:10:01,307 INFO L895 garLoopResultBuilder]: At program point L771(lines 726 773) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-19 07:10:01,307 INFO L895 garLoopResultBuilder]: At program point L738(line 738) the Hoare annotation is: (or (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-19 07:10:01,307 INFO L895 garLoopResultBuilder]: At program point L193(lines 193 200) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-19 07:10:01,307 INFO L902 garLoopResultBuilder]: At program point L193-2(lines 193 200) the Hoare annotation is: true [2022-11-19 07:10:01,308 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:10:01,308 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:10:01,308 INFO L895 garLoopResultBuilder]: At program point L764-2(lines 756 769) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-19 07:10:01,308 INFO L899 garLoopResultBuilder]: For program point L727(lines 726 773) no Hoare annotation was computed. [2022-11-19 07:10:01,308 INFO L895 garLoopResultBuilder]: At program point L748(line 748) the Hoare annotation is: (or (and (= 1 ~systemActive~0) (= |ULTIMATE.start_main_~tmp~1#1| 1) (= ~waterLevel~0 1)) (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-19 07:10:01,309 INFO L902 garLoopResultBuilder]: At program point L777(lines 716 781) the Hoare annotation is: true [2022-11-19 07:10:01,309 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 742) no Hoare annotation was computed. [2022-11-19 07:10:01,309 INFO L899 garLoopResultBuilder]: For program point L736-1(lines 736 742) no Hoare annotation was computed. [2022-11-19 07:10:01,309 INFO L895 garLoopResultBuilder]: At program point L774(lines 725 775) the Hoare annotation is: (or (and (not (= ~switchedOnBeforeTS~0 0)) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (= ~waterLevel~0 1) (and (< 1 ~waterLevel~0) (<= ~waterLevel~0 2))) [2022-11-19 07:10:01,309 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 635 646) no Hoare annotation was computed. [2022-11-19 07:10:01,310 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 635 646) the Hoare annotation is: (let ((.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)) (or (= ~pumpRunning~0 0) (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse0) (or (not (= |old(~waterLevel~0)| 2)) .cse0))) [2022-11-19 07:10:01,310 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 893 901) no Hoare annotation was computed. [2022-11-19 07:10:01,310 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 893 901) the Hoare annotation is: true [2022-11-19 07:10:01,314 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-19 07:10:01,316 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:10:01,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:10:01 BoogieIcfgContainer [2022-11-19 07:10:01,344 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:10:01,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:10:01,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:10:01,345 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:10:01,346 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:09:40" (3/4) ... [2022-11-19 07:10:01,349 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:10:01,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:10:01,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:10:01,355 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:10:01,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:10:01,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:10:01,356 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 07:10:01,364 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 49 nodes and edges [2022-11-19 07:10:01,364 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-19 07:10:01,365 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:10:01,365 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:10:01,366 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:10:01,394 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 1) || (waterLevel == 1 && pumpRunning == switchedOnBeforeTS)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-19 07:10:01,395 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(\old(waterLevel) == 2))) && ((\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning) || !(\old(waterLevel) == 2))) && (!(\old(waterLevel) == 1) || (waterLevel == 1 && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || \old(pumpRunning) == 0) [2022-11-19 07:10:01,395 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-19 07:10:01,396 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && (((tmp == waterLevel || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) [2022-11-19 07:10:01,396 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel)) && (!(\old(waterLevel) == 2) || (((pumpRunning == 0 || waterLevel == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || \old(pumpRunning) == 0) [2022-11-19 07:10:01,396 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(waterLevel) == 1) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0)) && !(\old(waterLevel) == 2) [2022-11-19 07:10:01,397 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(waterLevel) == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) [2022-11-19 07:10:01,397 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) && (!(\old(waterLevel) == 1) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) [2022-11-19 07:10:01,429 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:10:01,429 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:10:01,430 INFO L158 Benchmark]: Toolchain (without parser) took 22828.46ms. Allocated memory was 127.9MB in the beginning and 360.7MB in the end (delta: 232.8MB). Free memory was 92.6MB in the beginning and 176.5MB in the end (delta: -83.9MB). Peak memory consumption was 147.5MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,430 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 40.5MB in the beginning and 40.5MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:10:01,431 INFO L158 Benchmark]: CACSL2BoogieTranslator took 602.27ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 94.5MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,431 INFO L158 Benchmark]: Boogie Procedure Inliner took 82.08ms. Allocated memory is still 127.9MB. Free memory was 94.5MB in the beginning and 92.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,432 INFO L158 Benchmark]: Boogie Preprocessor took 56.09ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 91.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,432 INFO L158 Benchmark]: RCFGBuilder took 718.68ms. Allocated memory is still 127.9MB. Free memory was 90.5MB in the beginning and 65.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,433 INFO L158 Benchmark]: TraceAbstraction took 21273.26ms. Allocated memory was 127.9MB in the beginning and 360.7MB in the end (delta: 232.8MB). Free memory was 64.6MB in the beginning and 181.8MB in the end (delta: -117.2MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,433 INFO L158 Benchmark]: Witness Printer took 84.49ms. Allocated memory is still 360.7MB. Free memory was 181.8MB in the beginning and 176.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-19 07:10:01,435 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 83.9MB. Free memory was 40.5MB in the beginning and 40.5MB in the end (delta: 40.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 602.27ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 94.5MB in the end (delta: -1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 82.08ms. Allocated memory is still 127.9MB. Free memory was 94.5MB in the beginning and 92.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.09ms. Allocated memory is still 127.9MB. Free memory was 92.6MB in the beginning and 91.1MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 718.68ms. Allocated memory is still 127.9MB. Free memory was 90.5MB in the beginning and 65.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 21273.26ms. Allocated memory was 127.9MB in the beginning and 360.7MB in the end (delta: 232.8MB). Free memory was 64.6MB in the beginning and 181.8MB in the end (delta: -117.2MB). Peak memory consumption was 148.1MB. Max. memory is 16.1GB. * Witness Printer took 84.49ms. Allocated memory is still 360.7MB. Free memory was 181.8MB in the beginning and 176.5MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 21.2s, OverallIterations: 6, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1034 SdHoareTripleChecker+Valid, 2.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1018 mSDsluCounter, 1793 SdHoareTripleChecker+Invalid, 1.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1309 mSDsCounter, 742 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2000 IncrementalHoareTripleChecker+Invalid, 2742 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 742 mSolverCounterUnsat, 484 mSDtfsCounter, 2000 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 291 GetRequests, 189 SyntacticMatches, 2 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 7.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=155occurred in iteration=5, InterpolantAutomatonStates: 76, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 85 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 1400 PreInvPairs, 2472 NumberOfFragments, 1208 HoareAnnotationTreeSize, 1400 FomulaSimplifications, 9893 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 31 FomulaSimplificationsInter, 12297 FormulaSimplificationTreeSizeReductionInter, 3.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 300 NumberOfCodeBlocks, 300 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 338 ConstructedInterpolants, 0 QuantifiedInterpolants, 969 SizeOfPredicates, 14 NumberOfNonLiveVariables, 566 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 9 InterpolantComputations, 5 PerfectInterpolantSequences, 108/121 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 725]: Loop Invariant Derived loop invariant: ((!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS) || waterLevel == 1) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 114]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 1) || (waterLevel == 1 && pumpRunning == switchedOnBeforeTS)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: ((1 == systemActive && tmp == 1) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 211]: Loop Invariant Derived loop invariant: (!(\old(waterLevel) == 1) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0)) && !(\old(waterLevel) == 2) - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (\old(waterLevel) == waterLevel && tmp == 2))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0)) && (((tmp == waterLevel || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) - InvariantResult [Line: 716]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 823]: Loop Invariant Derived loop invariant: (((!(\old(waterLevel) == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 831]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 2)) && (!(\old(waterLevel) == 1) || (((0 < tmp + 1 && tmp <= 0) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS))) && (!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || \old(pumpRunning) == 0) - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: (((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 2)) || \old(waterLevel) == waterLevel)) && (!(\old(waterLevel) == 2) || (((pumpRunning == 0 || waterLevel == 1) && (!(pumpRunning == 0) || \old(waterLevel) == waterLevel)) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(pumpRunning == 0) && pumpRunning == switchedOnBeforeTS)) || \old(pumpRunning) == 0) - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || pumpRunning == switchedOnBeforeTS) || \old(switchedOnBeforeTS) == 0) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(\old(waterLevel) == 2))) && ((\old(waterLevel) == waterLevel && aux-isPumpRunning()-aux == pumpRunning) || !(\old(waterLevel) == 2))) && (!(\old(waterLevel) == 1) || (waterLevel == 1 && aux-isPumpRunning()-aux == pumpRunning))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && aux-isPumpRunning()-aux == pumpRunning)) || \old(pumpRunning) == 0) - InvariantResult [Line: 802]: Loop Invariant Derived loop invariant: ((((!(pumpRunning == 0) || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) || !(\old(waterLevel) == 1)) && ((!(\old(waterLevel) == 2) || \old(waterLevel) == waterLevel) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS))) && ((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || \old(switchedOnBeforeTS) == 0) - InvariantResult [Line: 104]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 746]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && waterLevel == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 726]: Loop Invariant Derived loop invariant: (((1 == systemActive && tmp == 1) && waterLevel == 1) || (!(switchedOnBeforeTS == 0) && pumpRunning == switchedOnBeforeTS)) || (1 < waterLevel && waterLevel <= 2) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:10:01,470 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_adac42dc-bd00-4d02-8e72-df66b130b2ba/bin/utaipan-I9t0OCRTmS/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