./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 03:45:21,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 03:45:21,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 03:45:21,996 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 03:45:21,997 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 03:45:21,998 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 03:45:21,999 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 03:45:22,001 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 03:45:22,003 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 03:45:22,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 03:45:22,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 03:45:22,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 03:45:22,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 03:45:22,007 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 03:45:22,009 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 03:45:22,010 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 03:45:22,011 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 03:45:22,012 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 03:45:22,014 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 03:45:22,015 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 03:45:22,017 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 03:45:22,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 03:45:22,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 03:45:22,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 03:45:22,031 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 03:45:22,039 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 03:45:22,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 03:45:22,041 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 03:45:22,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 03:45:22,043 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 03:45:22,043 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 03:45:22,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 03:45:22,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 03:45:22,049 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 03:45:22,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 03:45:22,052 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 03:45:22,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 03:45:22,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 03:45:22,055 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 03:45:22,056 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 03:45:22,057 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 03:45:22,058 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 03:45:22,103 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 03:45:22,103 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 03:45:22,104 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 03:45:22,104 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 03:45:22,105 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 03:45:22,105 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 03:45:22,105 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 03:45:22,105 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 03:45:22,106 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 03:45:22,106 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 03:45:22,106 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 03:45:22,106 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 03:45:22,107 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 03:45:22,107 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 03:45:22,107 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 03:45:22,107 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 03:45:22,107 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 03:45:22,108 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 03:45:22,111 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 03:45:22,111 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 03:45:22,112 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 03:45:22,112 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 03:45:22,112 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 03:45:22,113 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 03:45:22,113 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 03:45:22,113 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 03:45:22,114 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 03:45:22,114 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 03:45:22,115 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 03:45:22,115 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 03:45:22,115 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 03:45:22,116 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 03:45:22,116 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:22,116 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 03:45:22,116 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 03:45:22,117 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 03:45:22,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 03:45:22,119 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 03:45:22,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 03:45:22,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 03:45:22,121 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 03:45:22,121 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_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797436b26f0180d1dd4048b2036765c1f76ffc9f34d72e35837e9efcc5780486 [2022-11-03 03:45:22,491 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 03:45:22,518 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 03:45:22,520 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 03:45:22,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 03:45:22,523 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 03:45:22,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2022-11-03 03:45:22,610 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/data/c479c7d69/cebf95532db041e1a256aea460d67d07/FLAG557d29321 [2022-11-03 03:45:23,265 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 03:45:23,266 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c [2022-11-03 03:45:23,278 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/data/c479c7d69/cebf95532db041e1a256aea460d67d07/FLAG557d29321 [2022-11-03 03:45:23,515 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/data/c479c7d69/cebf95532db041e1a256aea460d67d07 [2022-11-03 03:45:23,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 03:45:23,522 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 03:45:23,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:23,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 03:45:23,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 03:45:23,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:23" (1/1) ... [2022-11-03 03:45:23,532 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3488cc28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:23, skipping insertion in model container [2022-11-03 03:45:23,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 03:45:23" (1/1) ... [2022-11-03 03:45:23,540 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 03:45:23,611 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 03:45:23,972 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c[17766,17779] [2022-11-03 03:45:23,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:23,990 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 03:45:24,141 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/sv-benchmarks/c/product-lines/minepump_spec2_product48.cil.c[17766,17779] [2022-11-03 03:45:24,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 03:45:24,182 INFO L208 MainTranslator]: Completed translation [2022-11-03 03:45:24,183 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24 WrapperNode [2022-11-03 03:45:24,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 03:45:24,184 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:24,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 03:45:24,185 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 03:45:24,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,210 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,241 INFO L138 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 252 [2022-11-03 03:45:24,242 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 03:45:24,243 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 03:45:24,243 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 03:45:24,243 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 03:45:24,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,255 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,258 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,266 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,288 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,289 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,293 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 03:45:24,294 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 03:45:24,294 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 03:45:24,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 03:45:24,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (1/1) ... [2022-11-03 03:45:24,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 03:45:24,321 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:24,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 03:45:24,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 03:45:24,383 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 03:45:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 03:45:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 03:45:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 03:45:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 03:45:24,384 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 03:45:24,384 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 03:45:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 03:45:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 03:45:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 03:45:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 03:45:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 03:45:24,385 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 03:45:24,385 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 03:45:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 03:45:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 03:45:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 03:45:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 03:45:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 03:45:24,386 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 03:45:24,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 03:45:24,387 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 03:45:24,476 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 03:45:24,479 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 03:45:24,924 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 03:45:25,137 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 03:45:25,137 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 03:45:25,140 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:25 BoogieIcfgContainer [2022-11-03 03:45:25,141 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 03:45:25,143 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 03:45:25,143 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 03:45:25,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 03:45:25,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 03:45:23" (1/3) ... [2022-11-03 03:45:25,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a06526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:25, skipping insertion in model container [2022-11-03 03:45:25,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 03:45:24" (2/3) ... [2022-11-03 03:45:25,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38a06526 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 03:45:25, skipping insertion in model container [2022-11-03 03:45:25,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:25" (3/3) ... [2022-11-03 03:45:25,157 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product48.cil.c [2022-11-03 03:45:25,179 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 03:45:25,179 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 03:45:25,258 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 03:45:25,275 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;@564cf009, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 03:45:25,275 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 03:45:25,282 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-03 03:45:25,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 03:45:25,295 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:25,297 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:25,298 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:25,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:25,308 INFO L85 PathProgramCache]: Analyzing trace with hash -630994243, now seen corresponding path program 1 times [2022-11-03 03:45:25,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:25,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115877971] [2022-11-03 03:45:25,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:25,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:25,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:25,649 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:25,650 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:25,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115877971] [2022-11-03 03:45:25,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115877971] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:25,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:25,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 03:45:25,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426495853] [2022-11-03 03:45:25,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:25,661 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 03:45:25,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:25,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 03:45:25,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:45:25,714 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.4222222222222223) internal successors, (64), 54 states have internal predecessors, (64), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:25,828 INFO L93 Difference]: Finished difference Result 142 states and 193 transitions. [2022-11-03 03:45:25,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 03:45:25,833 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 03:45:25,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:25,846 INFO L225 Difference]: With dead ends: 142 [2022-11-03 03:45:25,846 INFO L226 Difference]: Without dead ends: 67 [2022-11-03 03:45:25,864 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 03:45:25,869 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:25,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 75 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:25,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-03 03:45:25,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-03 03:45:25,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 42 states have (on average 1.3333333333333333) internal successors, (56), 50 states have internal predecessors, (56), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 03:45:25,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 87 transitions. [2022-11-03 03:45:25,955 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 87 transitions. Word has length 17 [2022-11-03 03:45:25,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:25,955 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 87 transitions. [2022-11-03 03:45:25,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:25,957 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 87 transitions. [2022-11-03 03:45:25,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 03:45:25,962 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:25,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:25,962 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 03:45:25,963 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:25,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:25,964 INFO L85 PathProgramCache]: Analyzing trace with hash -763607885, now seen corresponding path program 1 times [2022-11-03 03:45:25,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:25,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108521089] [2022-11-03 03:45:25,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:25,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:25,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:26,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:26,077 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:26,078 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108521089] [2022-11-03 03:45:26,078 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108521089] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:26,078 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:26,078 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:26,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538798999] [2022-11-03 03:45:26,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:26,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:26,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:26,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:26,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:26,082 INFO L87 Difference]: Start difference. First operand 67 states and 87 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:26,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:26,174 INFO L93 Difference]: Finished difference Result 106 states and 136 transitions. [2022-11-03 03:45:26,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:26,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 03:45:26,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:26,176 INFO L225 Difference]: With dead ends: 106 [2022-11-03 03:45:26,176 INFO L226 Difference]: Without dead ends: 59 [2022-11-03 03:45:26,177 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:26,179 INFO L413 NwaCegarLoop]: 61 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:26,179 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 106 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:26,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-03 03:45:26,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-03 03:45:26,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.3513513513513513) internal successors, (50), 45 states have internal predecessors, (50), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-03 03:45:26,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 76 transitions. [2022-11-03 03:45:26,203 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 76 transitions. Word has length 18 [2022-11-03 03:45:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:26,208 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 76 transitions. [2022-11-03 03:45:26,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 76 transitions. [2022-11-03 03:45:26,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-03 03:45:26,210 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:26,210 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:26,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 03:45:26,211 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:26,211 INFO L85 PathProgramCache]: Analyzing trace with hash 1416995417, now seen corresponding path program 1 times [2022-11-03 03:45:26,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:26,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369220373] [2022-11-03 03:45:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:26,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:26,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:26,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:26,322 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:26,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369220373] [2022-11-03 03:45:26,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369220373] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:26,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:26,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:26,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639222164] [2022-11-03 03:45:26,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:26,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:26,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:26,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:26,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:26,325 INFO L87 Difference]: Start difference. First operand 59 states and 76 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:26,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:26,410 INFO L93 Difference]: Finished difference Result 173 states and 225 transitions. [2022-11-03 03:45:26,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:26,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2022-11-03 03:45:26,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:26,413 INFO L225 Difference]: With dead ends: 173 [2022-11-03 03:45:26,414 INFO L226 Difference]: Without dead ends: 116 [2022-11-03 03:45:26,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:26,416 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 70 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:26,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 141 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:26,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-11-03 03:45:26,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 113. [2022-11-03 03:45:26,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 70 states have (on average 1.3571428571428572) internal successors, (95), 85 states have internal predecessors, (95), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-03 03:45:26,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 147 transitions. [2022-11-03 03:45:26,441 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 147 transitions. Word has length 21 [2022-11-03 03:45:26,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:26,442 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 147 transitions. [2022-11-03 03:45:26,442 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:26,442 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 147 transitions. [2022-11-03 03:45:26,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-03 03:45:26,444 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:26,444 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:26,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 03:45:26,445 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:26,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:26,446 INFO L85 PathProgramCache]: Analyzing trace with hash 1960403323, now seen corresponding path program 1 times [2022-11-03 03:45:26,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:26,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992175659] [2022-11-03 03:45:26,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:26,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:26,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:26,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:26,578 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:26,579 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992175659] [2022-11-03 03:45:26,579 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992175659] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:26,579 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:26,580 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:45:26,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291619634] [2022-11-03 03:45:26,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:26,581 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:45:26,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:26,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:45:26,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:45:26,582 INFO L87 Difference]: Start difference. First operand 113 states and 147 transitions. Second operand has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:26,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:26,759 INFO L93 Difference]: Finished difference Result 331 states and 434 transitions. [2022-11-03 03:45:26,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-03 03:45:26,760 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2022-11-03 03:45:26,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:26,763 INFO L225 Difference]: With dead ends: 331 [2022-11-03 03:45:26,763 INFO L226 Difference]: Without dead ends: 220 [2022-11-03 03:45:26,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-03 03:45:26,766 INFO L413 NwaCegarLoop]: 72 mSDtfsCounter, 51 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:26,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 317 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:26,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-11-03 03:45:26,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 212. [2022-11-03 03:45:26,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 131 states have (on average 1.3358778625954197) internal successors, (175), 158 states have internal predecessors, (175), 50 states have call successors, (50), 30 states have call predecessors, (50), 30 states have return successors, (50), 36 states have call predecessors, (50), 50 states have call successors, (50) [2022-11-03 03:45:26,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 275 transitions. [2022-11-03 03:45:26,819 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 275 transitions. Word has length 24 [2022-11-03 03:45:26,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:26,820 INFO L495 AbstractCegarLoop]: Abstraction has 212 states and 275 transitions. [2022-11-03 03:45:26,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 03:45:26,823 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 275 transitions. [2022-11-03 03:45:26,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-03 03:45:26,834 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:26,834 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:26,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 03:45:26,835 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:26,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:26,836 INFO L85 PathProgramCache]: Analyzing trace with hash 904211786, now seen corresponding path program 1 times [2022-11-03 03:45:26,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:26,838 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141245630] [2022-11-03 03:45:26,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:26,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:26,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:26,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 03:45:26,997 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:26,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141245630] [2022-11-03 03:45:26,998 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141245630] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:26,999 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:27,002 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 03:45:27,004 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611620741] [2022-11-03 03:45:27,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:27,005 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 03:45:27,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:27,008 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 03:45:27,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:27,009 INFO L87 Difference]: Start difference. First operand 212 states and 275 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:45:27,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:27,115 INFO L93 Difference]: Finished difference Result 323 states and 424 transitions. [2022-11-03 03:45:27,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 03:45:27,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-03 03:45:27,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:27,124 INFO L225 Difference]: With dead ends: 323 [2022-11-03 03:45:27,124 INFO L226 Difference]: Without dead ends: 321 [2022-11-03 03:45:27,124 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 03:45:27,125 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 51 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:27,126 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 131 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:27,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2022-11-03 03:45:27,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 321. [2022-11-03 03:45:27,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 198 states have (on average 1.3383838383838385) internal successors, (265), 239 states have internal predecessors, (265), 76 states have call successors, (76), 46 states have call predecessors, (76), 46 states have return successors, (80), 55 states have call predecessors, (80), 76 states have call successors, (80) [2022-11-03 03:45:27,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 421 transitions. [2022-11-03 03:45:27,205 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 421 transitions. Word has length 27 [2022-11-03 03:45:27,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:27,206 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 421 transitions. [2022-11-03 03:45:27,206 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-03 03:45:27,206 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 421 transitions. [2022-11-03 03:45:27,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-11-03 03:45:27,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:27,209 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:27,209 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 03:45:27,209 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:27,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:27,210 INFO L85 PathProgramCache]: Analyzing trace with hash 161106735, now seen corresponding path program 1 times [2022-11-03 03:45:27,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:27,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212745613] [2022-11-03 03:45:27,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:27,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:27,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:45:27,517 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:27,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212745613] [2022-11-03 03:45:27,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1212745613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:27,518 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:27,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-03 03:45:27,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680074498] [2022-11-03 03:45:27,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:27,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-03 03:45:27,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:27,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-03 03:45:27,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-03 03:45:27,522 INFO L87 Difference]: Start difference. First operand 321 states and 421 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 03:45:27,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:27,970 INFO L93 Difference]: Finished difference Result 1030 states and 1368 transitions. [2022-11-03 03:45:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-03 03:45:27,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2022-11-03 03:45:27,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:27,983 INFO L225 Difference]: With dead ends: 1030 [2022-11-03 03:45:27,983 INFO L226 Difference]: Without dead ends: 711 [2022-11-03 03:45:27,989 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:45:27,993 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 141 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:27,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 182 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:45:27,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-11-03 03:45:28,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 664. [2022-11-03 03:45:28,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 436 states have (on average 1.2454128440366972) internal successors, (543), 475 states have internal predecessors, (543), 116 states have call successors, (116), 95 states have call predecessors, (116), 111 states have return successors, (162), 117 states have call predecessors, (162), 116 states have call successors, (162) [2022-11-03 03:45:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 821 transitions. [2022-11-03 03:45:28,096 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 821 transitions. Word has length 48 [2022-11-03 03:45:28,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:28,097 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 821 transitions. [2022-11-03 03:45:28,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-03 03:45:28,097 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 821 transitions. [2022-11-03 03:45:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2022-11-03 03:45:28,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:28,103 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:28,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 03:45:28,104 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:28,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:28,104 INFO L85 PathProgramCache]: Analyzing trace with hash -950701567, now seen corresponding path program 1 times [2022-11-03 03:45:28,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:28,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636551446] [2022-11-03 03:45:28,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:28,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:28,236 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-03 03:45:28,237 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:28,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636551446] [2022-11-03 03:45:28,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636551446] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:45:28,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 03:45:28,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 03:45:28,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617742714] [2022-11-03 03:45:28,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:45:28,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:45:28,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:45:28,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:45:28,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:45:28,239 INFO L87 Difference]: Start difference. First operand 664 states and 821 transitions. Second operand has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-03 03:45:28,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:45:28,425 INFO L93 Difference]: Finished difference Result 1061 states and 1314 transitions. [2022-11-03 03:45:28,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 03:45:28,426 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 64 [2022-11-03 03:45:28,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:45:28,434 INFO L225 Difference]: With dead ends: 1061 [2022-11-03 03:45:28,434 INFO L226 Difference]: Without dead ends: 399 [2022-11-03 03:45:28,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 03:45:28,439 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 92 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:45:28,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 130 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:45:28,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2022-11-03 03:45:28,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 382. [2022-11-03 03:45:28,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 254 states have (on average 1.236220472440945) internal successors, (314), 276 states have internal predecessors, (314), 64 states have call successors, (64), 55 states have call predecessors, (64), 63 states have return successors, (87), 66 states have call predecessors, (87), 64 states have call successors, (87) [2022-11-03 03:45:28,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 465 transitions. [2022-11-03 03:45:28,496 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 465 transitions. Word has length 64 [2022-11-03 03:45:28,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:45:28,496 INFO L495 AbstractCegarLoop]: Abstraction has 382 states and 465 transitions. [2022-11-03 03:45:28,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 15.666666666666666) internal successors, (47), 4 states have internal predecessors, (47), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2022-11-03 03:45:28,497 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 465 transitions. [2022-11-03 03:45:28,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-11-03 03:45:28,500 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:45:28,500 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:45:28,501 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-03 03:45:28,501 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:45:28,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:45:28,502 INFO L85 PathProgramCache]: Analyzing trace with hash 933620820, now seen corresponding path program 1 times [2022-11-03 03:45:28,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:45:28,502 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680307224] [2022-11-03 03:45:28,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:28,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:45:28,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:29,034 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 03:45:29,034 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:45:29,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680307224] [2022-11-03 03:45:29,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680307224] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:45:29,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249599531] [2022-11-03 03:45:29,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:45:29,035 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:45:29,036 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:45:29,040 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:45:29,041 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 03:45:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:45:29,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 464 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 03:45:29,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:45:29,647 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 30 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 03:45:29,648 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 03:45:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-03 03:45:30,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249599531] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 03:45:30,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1506625108] [2022-11-03 03:45:30,497 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-03 03:45:30,497 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 03:45:30,501 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 03:45:30,507 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 03:45:30,508 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 03:45:41,006 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-03 03:45:41,391 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 28 for LOIs [2022-11-03 03:45:41,515 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 53 for LOIs [2022-11-03 03:45:41,626 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 27 for LOIs [2022-11-03 03:45:41,629 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 319 for LOIs [2022-11-03 03:45:41,752 INFO L197 IcfgInterpreter]: Interpreting procedure deactivatePump with input of size 29 for LOIs [2022-11-03 03:45:41,755 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 03:46:02,875 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '8113#(and (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~2#1|) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~6#1|) (<= ~methaneLevelCritical~0 1) (<= 0 |old(~pumpRunning~0)|) (<= ~pumpRunning~0 1) (<= |old(~pumpRunning~0)| 1) (= ~head~0.offset 0) (<= |#NULL.offset| 0) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= |old(~methAndRunningLastTime~0)| 1) (<= 0 ~head~0.base) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~6#1|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~2#1| 0)) (<= 0 ~pumpRunning~0) (<= ~head~0.base 0) (<= 0 |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1|) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| ~methaneLevelCritical~0) (<= 0 |#NULL.offset|) (not (= ~methAndRunningLastTime~0 0)) (<= ~methAndRunningLastTime~0 1) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 03:46:02,875 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 03:46:02,876 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 03:46:02,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12, 11] total 33 [2022-11-03 03:46:02,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074681155] [2022-11-03 03:46:02,876 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 03:46:02,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-11-03 03:46:02,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:02,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-11-03 03:46:02,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=452, Invalid=4378, Unknown=0, NotChecked=0, Total=4830 [2022-11-03 03:46:02,880 INFO L87 Difference]: Start difference. First operand 382 states and 465 transitions. Second operand has 33 states, 23 states have (on average 4.130434782608695) internal successors, (95), 24 states have internal predecessors, (95), 10 states have call successors, (22), 6 states have call predecessors, (22), 17 states have return successors, (25), 15 states have call predecessors, (25), 10 states have call successors, (25) [2022-11-03 03:46:11,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:11,147 INFO L93 Difference]: Finished difference Result 1992 states and 2841 transitions. [2022-11-03 03:46:11,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-11-03 03:46:11,148 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 23 states have (on average 4.130434782608695) internal successors, (95), 24 states have internal predecessors, (95), 10 states have call successors, (22), 6 states have call predecessors, (22), 17 states have return successors, (25), 15 states have call predecessors, (25), 10 states have call successors, (25) Word has length 74 [2022-11-03 03:46:11,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:11,180 INFO L225 Difference]: With dead ends: 1992 [2022-11-03 03:46:11,180 INFO L226 Difference]: Without dead ends: 1565 [2022-11-03 03:46:11,192 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 204 SyntacticMatches, 2 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11875 ImplicationChecksByTransitivity, 25.8s TimeCoverageRelationStatistics Valid=3050, Invalid=27750, Unknown=0, NotChecked=0, Total=30800 [2022-11-03 03:46:11,192 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 1887 mSDsluCounter, 1876 mSDsCounter, 0 mSdLazyCounter, 4583 mSolverCounterSat, 1409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 5992 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 4583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:11,193 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 1709 Invalid, 5992 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1409 Valid, 4583 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2022-11-03 03:46:11,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2022-11-03 03:46:11,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 886. [2022-11-03 03:46:11,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 886 states, 595 states have (on average 1.2134453781512604) internal successors, (722), 641 states have internal predecessors, (722), 144 states have call successors, (144), 127 states have call predecessors, (144), 146 states have return successors, (189), 148 states have call predecessors, (189), 144 states have call successors, (189) [2022-11-03 03:46:11,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1055 transitions. [2022-11-03 03:46:11,373 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1055 transitions. Word has length 74 [2022-11-03 03:46:11,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:11,373 INFO L495 AbstractCegarLoop]: Abstraction has 886 states and 1055 transitions. [2022-11-03 03:46:11,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 23 states have (on average 4.130434782608695) internal successors, (95), 24 states have internal predecessors, (95), 10 states have call successors, (22), 6 states have call predecessors, (22), 17 states have return successors, (25), 15 states have call predecessors, (25), 10 states have call successors, (25) [2022-11-03 03:46:11,374 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1055 transitions. [2022-11-03 03:46:11,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2022-11-03 03:46:11,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:11,377 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:11,408 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 03:46:11,588 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:11,589 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:11,589 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:11,590 INFO L85 PathProgramCache]: Analyzing trace with hash -2082783175, now seen corresponding path program 1 times [2022-11-03 03:46:11,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:11,590 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019819191] [2022-11-03 03:46:11,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:11,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:11,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 5 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-11-03 03:46:12,018 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:12,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019819191] [2022-11-03 03:46:12,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019819191] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:12,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664681994] [2022-11-03 03:46:12,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:12,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:12,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:12,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:12,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 03:46:12,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:12,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-03 03:46:12,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:12,186 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-03 03:46:12,187 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:46:12,187 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664681994] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:12,187 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:46:12,187 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 10 [2022-11-03 03:46:12,188 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693130845] [2022-11-03 03:46:12,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:12,188 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 03:46:12,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:12,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 03:46:12,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-11-03 03:46:12,189 INFO L87 Difference]: Start difference. First operand 886 states and 1055 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 03:46:12,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:12,446 INFO L93 Difference]: Finished difference Result 1511 states and 1844 transitions. [2022-11-03 03:46:12,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-03 03:46:12,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) Word has length 76 [2022-11-03 03:46:12,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:12,453 INFO L225 Difference]: With dead ends: 1511 [2022-11-03 03:46:12,453 INFO L226 Difference]: Without dead ends: 740 [2022-11-03 03:46:12,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-11-03 03:46:12,459 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 46 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 193 SdHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:12,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 193 Invalid, 108 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 03:46:12,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-11-03 03:46:12,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 713. [2022-11-03 03:46:12,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 713 states, 482 states have (on average 1.2033195020746887) internal successors, (580), 518 states have internal predecessors, (580), 116 states have call successors, (116), 104 states have call predecessors, (116), 114 states have return successors, (140), 119 states have call predecessors, (140), 116 states have call successors, (140) [2022-11-03 03:46:12,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 713 states to 713 states and 836 transitions. [2022-11-03 03:46:12,537 INFO L78 Accepts]: Start accepts. Automaton has 713 states and 836 transitions. Word has length 76 [2022-11-03 03:46:12,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:12,538 INFO L495 AbstractCegarLoop]: Abstraction has 713 states and 836 transitions. [2022-11-03 03:46:12,538 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (10), 3 states have call predecessors, (10), 2 states have call successors, (10) [2022-11-03 03:46:12,538 INFO L276 IsEmpty]: Start isEmpty. Operand 713 states and 836 transitions. [2022-11-03 03:46:12,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-03 03:46:12,542 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 03:46:12,542 INFO L195 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:12,583 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 03:46:12,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:12,756 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 03:46:12,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 03:46:12,757 INFO L85 PathProgramCache]: Analyzing trace with hash -1421753142, now seen corresponding path program 1 times [2022-11-03 03:46:12,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 03:46:12,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893748252] [2022-11-03 03:46:12,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:12,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 03:46:12,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:13,129 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 41 proven. 16 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-11-03 03:46:13,129 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 03:46:13,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893748252] [2022-11-03 03:46:13,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893748252] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 03:46:13,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885203669] [2022-11-03 03:46:13,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 03:46:13,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:13,130 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 03:46:13,131 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 03:46:13,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 03:46:13,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 03:46:13,288 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-03 03:46:13,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 03:46:13,376 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 03:46:13,377 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 03:46:13,377 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885203669] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 03:46:13,377 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 03:46:13,377 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [13] total 16 [2022-11-03 03:46:13,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951788469] [2022-11-03 03:46:13,378 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 03:46:13,378 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-03 03:46:13,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 03:46:13,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-03 03:46:13,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-11-03 03:46:13,379 INFO L87 Difference]: Start difference. First operand 713 states and 836 transitions. Second operand has 11 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:46:13,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 03:46:13,843 INFO L93 Difference]: Finished difference Result 1455 states and 1720 transitions. [2022-11-03 03:46:13,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-03 03:46:13,844 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) Word has length 111 [2022-11-03 03:46:13,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 03:46:13,845 INFO L225 Difference]: With dead ends: 1455 [2022-11-03 03:46:13,845 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 03:46:13,848 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2022-11-03 03:46:13,849 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 56 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 03:46:13,849 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 363 Invalid, 442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 03:46:13,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 03:46:13,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 03:46:13,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 03:46:13,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 03:46:13,851 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 111 [2022-11-03 03:46:13,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 03:46:13,851 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 03:46:13,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 8 states have (on average 8.25) internal successors, (66), 8 states have internal predecessors, (66), 3 states have call successors, (15), 3 states have call predecessors, (15), 6 states have return successors, (16), 6 states have call predecessors, (16), 3 states have call successors, (16) [2022-11-03 03:46:13,852 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 03:46:13,852 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 03:46:13,855 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 03:46:13,892 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-03 03:46:14,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 03:46:14,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 03:46:20,604 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 378 385) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~pumpRunning~0)| 0) (= 0 ~systemActive~0)) [2022-11-03 03:46:20,605 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 378 385) no Hoare annotation was computed. [2022-11-03 03:46:20,605 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 294 300) no Hoare annotation was computed. [2022-11-03 03:46:20,605 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 294 300) the Hoare annotation is: true [2022-11-03 03:46:20,605 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= 1 ~systemActive~0)) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 (not (= 0 ~systemActive~0))))) [2022-11-03 03:46:20,605 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-03 03:46:20,606 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 901 930) no Hoare annotation was computed. [2022-11-03 03:46:20,606 INFO L902 garLoopResultBuilder]: At program point L926(lines 901 930) the Hoare annotation is: true [2022-11-03 03:46:20,606 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 901 930) the Hoare annotation is: true [2022-11-03 03:46:20,606 INFO L899 garLoopResultBuilder]: For program point L922(line 922) no Hoare annotation was computed. [2022-11-03 03:46:20,606 INFO L899 garLoopResultBuilder]: For program point L915(lines 915 919) no Hoare annotation was computed. [2022-11-03 03:46:20,606 INFO L902 garLoopResultBuilder]: At program point L915-1(lines 915 919) the Hoare annotation is: true [2022-11-03 03:46:20,607 INFO L902 garLoopResultBuilder]: At program point L911-2(lines 911 925) the Hoare annotation is: true [2022-11-03 03:46:20,607 INFO L902 garLoopResultBuilder]: At program point L907(line 907) the Hoare annotation is: true [2022-11-03 03:46:20,607 INFO L899 garLoopResultBuilder]: For program point L907-1(line 907) no Hoare annotation was computed. [2022-11-03 03:46:20,607 INFO L895 garLoopResultBuilder]: At program point L895(line 895) the Hoare annotation is: (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,607 INFO L899 garLoopResultBuilder]: For program point L507(lines 507 517) no Hoare annotation was computed. [2022-11-03 03:46:20,608 INFO L895 garLoopResultBuilder]: At program point L503(lines 503 520) the Hoare annotation is: (let ((.cse2 (= |old(~pumpRunning~0)| 0)) (.cse10 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse9 (= ~pumpRunning~0 0)) (.cse11 (= ~methaneLevelCritical~0 0)) (.cse13 (= 1 ~systemActive~0)) (.cse12 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| ~methaneLevelCritical~0))) (let ((.cse7 (not (= 0 ~systemActive~0))) (.cse4 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10 .cse6 (not .cse9) .cse11 .cse13 .cse12)) (.cse3 (not .cse11)) (.cse5 (not .cse2)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not .cse13)) (.cse8 (and .cse9 .cse12))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse5 .cse0 .cse6 .cse3 .cse7) (or .cse5 .cse8 .cse7) (or .cse0 .cse1 .cse2 (and .cse9 .cse10 .cse6) .cse4) (or .cse0 .cse6 .cse1 .cse3) (or .cse5 .cse0 (and .cse11 .cse12 (= ~pumpRunning~0 1)) .cse1 .cse8)))) [2022-11-03 03:46:20,608 INFO L895 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,608 INFO L895 garLoopResultBuilder]: At program point L503-1(lines 495 523) the Hoare annotation is: (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not .cse8)) (.cse4 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse13 (= 1 ~systemActive~0)) (.cse12 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| ~methaneLevelCritical~0))) (let ((.cse2 (and .cse6 .cse9 .cse4 .cse5 .cse7 .cse13 .cse12)) (.cse3 (= ~pumpRunning~0 0)) (.cse11 (not (= 0 ~systemActive~0))) (.cse10 (= ~pumpRunning~0 |timeShift___utac_acc__Specification2_spec__2_~tmp___0~2#1|)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not .cse13))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5) (and .cse6 .cse3 .cse5) (and .cse5 .cse7 (= ~pumpRunning~0 1))) (or .cse0 .cse1 .cse8 (not .cse7) .cse2) (or .cse9 .cse10 .cse7 .cse11) (or .cse9 (and .cse3 .cse5 .cse12) .cse11) (or .cse9 .cse0 .cse1 .cse12) (or .cse9 .cse10 .cse0 .cse7 .cse1))))) [2022-11-03 03:46:20,609 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0))) (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2022-11-03 03:46:20,609 INFO L895 garLoopResultBuilder]: At program point L334(line 334) the Hoare annotation is: (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0)))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,609 INFO L899 garLoopResultBuilder]: For program point L334-1(line 334) no Hoare annotation was computed. [2022-11-03 03:46:20,609 INFO L899 garLoopResultBuilder]: For program point L508(lines 508 514) no Hoare annotation was computed. [2022-11-03 03:46:20,609 INFO L895 garLoopResultBuilder]: At program point L347(line 347) the Hoare annotation is: (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,610 INFO L895 garLoopResultBuilder]: At program point L347-1(lines 328 352) the Hoare annotation is: (let ((.cse6 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse7 (= ~methaneLevelCritical~0 0)) (.cse9 (= 1 ~systemActive~0))) (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not .cse9)) (.cse5 (and .cse6 .cse3 .cse4 (not .cse2) .cse7 .cse9)) (.cse8 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5 (and .cse6 .cse2 .cse4) (and .cse4 .cse7 (= ~pumpRunning~0 1))) (or .cse0 .cse1 .cse8 (not .cse7) .cse5) (or (not .cse8) (not (= 0 ~systemActive~0)))))) [2022-11-03 03:46:20,610 INFO L899 garLoopResultBuilder]: For program point L281-1(lines 281 287) no Hoare annotation was computed. [2022-11-03 03:46:20,610 INFO L895 garLoopResultBuilder]: At program point L501(line 501) the Hoare annotation is: (let ((.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse9 (= ~methaneLevelCritical~0 0)) (.cse11 (= 1 ~systemActive~0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse10)) (.cse3 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not .cse11)) (.cse7 (and .cse8 .cse6 .cse2 (not .cse4) .cse9 .cse11))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse3) (or .cse0 .cse4 .cse3) (or .cse1 .cse5 (and .cse4 .cse6 .cse2) .cse7 (and .cse8 .cse4 .cse2) (and .cse2 .cse9 (= ~pumpRunning~0 1))) (or .cse1 .cse5 .cse10 (not .cse9) .cse7)))) [2022-11-03 03:46:20,610 INFO L899 garLoopResultBuilder]: For program point L501-1(line 501) no Hoare annotation was computed. [2022-11-03 03:46:20,611 INFO L899 garLoopResultBuilder]: For program point L274-1(lines 273 292) no Hoare annotation was computed. [2022-11-03 03:46:20,611 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 344) no Hoare annotation was computed. [2022-11-03 03:46:20,611 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 270 293) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= 0 ~systemActive~0))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (= ~methAndRunningLastTime~0 0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 ~systemActive~0)) .cse3) (or .cse0 (= ~pumpRunning~0 0) .cse3) (or .cse1 (not (= 1 ~systemActive~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2)))) [2022-11-03 03:46:20,611 INFO L899 garLoopResultBuilder]: For program point L332(lines 332 349) no Hoare annotation was computed. [2022-11-03 03:46:20,611 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 270 293) no Hoare annotation was computed. [2022-11-03 03:46:20,612 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 895) no Hoare annotation was computed. [2022-11-03 03:46:20,612 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-03 03:46:20,612 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-03 03:46:20,612 INFO L895 garLoopResultBuilder]: At program point L225(line 225) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= 1 ~systemActive~0) .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,613 INFO L895 garLoopResultBuilder]: At program point L250(lines 203 252) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse2 (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,613 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 219) no Hoare annotation was computed. [2022-11-03 03:46:20,613 INFO L899 garLoopResultBuilder]: For program point L213-1(lines 213 219) no Hoare annotation was computed. [2022-11-03 03:46:20,613 INFO L899 garLoopResultBuilder]: For program point L465(lines 465 471) no Hoare annotation was computed. [2022-11-03 03:46:20,613 INFO L895 garLoopResultBuilder]: At program point L465-1(lines 465 471) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (not (= 0 ~systemActive~0))) (and .cse0 (= ~methAndRunningLastTime~0 0) .cse1))) [2022-11-03 03:46:20,613 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 03:46:20,614 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 03:46:20,614 INFO L902 garLoopResultBuilder]: At program point L256(lines 193 260) the Hoare annotation is: true [2022-11-03 03:46:20,614 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 229) no Hoare annotation was computed. [2022-11-03 03:46:20,614 INFO L899 garLoopResultBuilder]: For program point L223-1(lines 223 229) no Hoare annotation was computed. [2022-11-03 03:46:20,614 INFO L895 garLoopResultBuilder]: At program point L983(lines 983 990) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0)) [2022-11-03 03:46:20,615 INFO L895 garLoopResultBuilder]: At program point L215(line 215) the Hoare annotation is: (let ((.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse0 (= ~methAndRunningLastTime~0 0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= ~methaneLevelCritical~0 0) .cse1 .cse2) (and .cse3 .cse0 .cse1 .cse2) (and .cse3 .cse0 .cse2 (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,615 INFO L902 garLoopResultBuilder]: At program point L983-2(lines 983 990) the Hoare annotation is: true [2022-11-03 03:46:20,615 INFO L895 garLoopResultBuilder]: At program point L467(line 467) the Hoare annotation is: (and (not (= ~pumpRunning~0 0)) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-11-03 03:46:20,615 INFO L895 garLoopResultBuilder]: At program point L253(lines 202 254) the Hoare annotation is: false [2022-11-03 03:46:20,615 INFO L899 garLoopResultBuilder]: For program point L241(lines 241 247) no Hoare annotation was computed. [2022-11-03 03:46:20,616 INFO L895 garLoopResultBuilder]: At program point L241-2(lines 233 248) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)) (and (= ~methAndRunningLastTime~0 0) (= 1 ~systemActive~0) .cse0))) [2022-11-03 03:46:20,616 INFO L899 garLoopResultBuilder]: For program point L204(lines 203 252) no Hoare annotation was computed. [2022-11-03 03:46:20,616 INFO L895 garLoopResultBuilder]: At program point L233(lines 233 248) the Hoare annotation is: (let ((.cse0 (= ~methAndRunningLastTime~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (= 1 ~systemActive~0) .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (= 0 ~systemActive~0)))) [2022-11-03 03:46:20,616 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-03 03:46:20,616 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: true [2022-11-03 03:46:20,617 INFO L895 garLoopResultBuilder]: At program point L316(line 316) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 .cse2) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-03 03:46:20,617 INFO L899 garLoopResultBuilder]: For program point L310(lines 310 318) no Hoare annotation was computed. [2022-11-03 03:46:20,617 INFO L895 garLoopResultBuilder]: At program point L306(lines 306 323) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-03 03:46:20,617 INFO L895 garLoopResultBuilder]: At program point L366(line 366) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not .cse0) (= ~pumpRunning~0 0) .cse1 .cse2) (or .cse1 .cse0 (not (= ~methaneLevelCritical~0 0)) .cse2))) [2022-11-03 03:46:20,618 INFO L895 garLoopResultBuilder]: At program point L366-1(line 366) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) .cse2) (or (not .cse1) .cse0 (and (= |processEnvironment__wrappee__methaneQuery_activatePump_#t~ret16#1| ~methaneLevelCritical~0) (= ~pumpRunning~0 0)) .cse2))) [2022-11-03 03:46:20,618 INFO L895 garLoopResultBuilder]: At program point L321(line 321) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-03 03:46:20,618 INFO L899 garLoopResultBuilder]: For program point L321-1(lines 302 326) no Hoare annotation was computed. [2022-11-03 03:46:20,618 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 302 326) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~methAndRunningLastTime~0 0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0)) .cse1))) [2022-11-03 03:46:20,618 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 302 326) no Hoare annotation was computed. [2022-11-03 03:46:20,619 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 386 396) the Hoare annotation is: true [2022-11-03 03:46:20,619 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 386 396) no Hoare annotation was computed. [2022-11-03 03:46:20,619 INFO L902 garLoopResultBuilder]: At program point L391(line 391) the Hoare annotation is: true [2022-11-03 03:46:20,619 INFO L899 garLoopResultBuilder]: For program point L391-1(line 391) no Hoare annotation was computed. [2022-11-03 03:46:20,622 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 03:46:20,625 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 03:46:20,650 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 03:46:20 BoogieIcfgContainer [2022-11-03 03:46:20,650 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 03:46:20,650 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 03:46:20,651 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 03:46:20,651 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 03:46:20,651 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 03:45:25" (3/4) ... [2022-11-03 03:46:20,655 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 03:46:20,660 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 03:46:20,661 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 03:46:20,661 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 03:46:20,661 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 03:46:20,661 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 03:46:20,661 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 03:46:20,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 03:46:20,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 03:46:20,662 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 03:46:20,670 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2022-11-03 03:46:20,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2022-11-03 03:46:20,671 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-03 03:46:20,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 03:46:20,672 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 03:46:20,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:46:20,673 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 03:46:20,699 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == systemActive)) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) [2022-11-03 03:46:20,700 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || (((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 03:46:20,701 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) [2022-11-03 03:46:20,701 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && tmp == methaneLevelCritical)) || !(0 == systemActive))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || ((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && tmp == methaneLevelCritical) && pumpRunning == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == methaneLevelCritical)) [2022-11-03 03:46:20,702 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || pumpRunning == tmp___0) || methaneLevelCritical == 0) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || tmp == methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == tmp___0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || !(1 == systemActive)) [2022-11-03 03:46:20,702 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (aux-isMethaneAlarm()-aux == methaneLevelCritical && pumpRunning == 0)) || !(methAndRunningLastTime == 0)) [2022-11-03 03:46:20,703 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-03 03:46:20,728 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 03:46:20,728 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 03:46:20,729 INFO L158 Benchmark]: Toolchain (without parser) took 57206.81ms. Allocated memory was 107.0MB in the beginning and 423.6MB in the end (delta: 316.7MB). Free memory was 72.9MB in the beginning and 360.7MB in the end (delta: -287.8MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,729 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 03:46:20,730 INFO L158 Benchmark]: CACSL2BoogieTranslator took 658.63ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 91.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,730 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.94ms. Allocated memory is still 107.0MB. Free memory was 72.6MB in the beginning and 70.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,730 INFO L158 Benchmark]: Boogie Preprocessor took 50.79ms. Allocated memory is still 107.0MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,731 INFO L158 Benchmark]: RCFGBuilder took 846.47ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 68.4MB in the beginning and 95.2MB in the end (delta: -26.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,731 INFO L158 Benchmark]: TraceAbstraction took 55506.98ms. Allocated memory was 136.3MB in the beginning and 423.6MB in the end (delta: 287.3MB). Free memory was 94.4MB in the beginning and 367.0MB in the end (delta: -272.6MB). Peak memory consumption was 246.4MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,732 INFO L158 Benchmark]: Witness Printer took 77.88ms. Allocated memory is still 423.6MB. Free memory was 367.0MB in the beginning and 360.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 03:46:20,734 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 107.0MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 658.63ms. Allocated memory is still 107.0MB. Free memory was 72.7MB in the beginning and 72.6MB in the end (delta: 91.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.94ms. Allocated memory is still 107.0MB. Free memory was 72.6MB in the beginning and 70.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.79ms. Allocated memory is still 107.0MB. Free memory was 70.1MB in the beginning and 68.4MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 846.47ms. Allocated memory was 107.0MB in the beginning and 136.3MB in the end (delta: 29.4MB). Free memory was 68.4MB in the beginning and 95.2MB in the end (delta: -26.8MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * TraceAbstraction took 55506.98ms. Allocated memory was 136.3MB in the beginning and 423.6MB in the end (delta: 287.3MB). Free memory was 94.4MB in the beginning and 367.0MB in the end (delta: -272.6MB). Peak memory consumption was 246.4MB. Max. memory is 16.1GB. * Witness Printer took 77.88ms. Allocated memory is still 423.6MB. Free memory was 367.0MB in the beginning and 360.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 895]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 72 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 55.4s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2429 SdHoareTripleChecker+Valid, 4.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2408 mSDsluCounter, 3347 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3076 mSDsCounter, 1513 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5593 IncrementalHoareTripleChecker+Invalid, 7106 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1513 mSolverCounterUnsat, 924 mSDtfsCounter, 5593 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 635 GetRequests, 409 SyntacticMatches, 2 SemanticMatches, 224 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11940 ImplicationChecksByTransitivity, 26.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=886occurred in iteration=8, InterpolantAutomatonStates: 169, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 781 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 40 LocationsWithAnnotation, 1977 PreInvPairs, 2240 NumberOfFragments, 1228 HoareAnnotationTreeSize, 1977 FomulaSimplifications, 6299 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 40 FomulaSimplificationsInter, 29879 FormulaSimplificationTreeSizeReductionInter, 4.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 3.5s InterpolantComputationTime, 741 NumberOfCodeBlocks, 741 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 801 ConstructedInterpolants, 0 QuantifiedInterpolants, 1983 SizeOfPredicates, 18 NumberOfNonLiveVariables, 1509 ConjunctsInSsa, 71 ConjunctsInUnsatCore, 14 InterpolantComputations, 9 PerfectInterpolantSequences, 384/430 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: 983]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive - InvariantResult [Line: 202]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 895]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 193]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 983]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 911]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 495]: Loop Invariant Derived loop invariant: (((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && !(\old(pumpRunning) == 0)) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical))) && (((!(\old(pumpRunning) == 0) || pumpRunning == tmp___0) || methaneLevelCritical == 0) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || tmp == methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || pumpRunning == tmp___0) || !(\old(methAndRunningLastTime) == 0)) || methaneLevelCritical == 0) || !(1 == systemActive)) - InvariantResult [Line: 503]: Loop Invariant Derived loop invariant: ((((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || ((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && tmp == methaneLevelCritical)) || !(0 == systemActive))) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || ((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive) && tmp == methaneLevelCritical))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((methaneLevelCritical == 0 && tmp == methaneLevelCritical) && pumpRunning == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == methaneLevelCritical)) - InvariantResult [Line: 366]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (aux-isMethaneAlarm()-aux == methaneLevelCritical && pumpRunning == 0)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: ((((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 270]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(methaneLevelCritical == systemActive)) || !(0 == systemActive)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0)) - InvariantResult [Line: 465]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) - InvariantResult [Line: 328]: Loop Invariant Derived loop invariant: ((((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && methAndRunningLastTime == 0)) || (((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0)) || ((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && pumpRunning == 1)) && ((((!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methAndRunningLastTime == 0) && !(pumpRunning == 0)) && methaneLevelCritical == 0) && 1 == systemActive))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 233]: Loop Invariant Derived loop invariant: ((methAndRunningLastTime == 0 && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 901]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 03:46:20,795 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f0d2c7f-97de-4119-9bc7-5a98d1f1106c/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE