./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW --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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb --- 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-4e7fbc6 [2022-11-23 15:56:26,123 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:56:26,127 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:56:26,166 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:56:26,169 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:56:26,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:56:26,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:56:26,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:56:26,188 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:56:26,197 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:56:26,199 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:56:26,201 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:56:26,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:56:26,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:56:26,207 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:56:26,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:56:26,213 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:56:26,214 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:56:26,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:56:26,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:56:26,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:56:26,230 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:56:26,232 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:56:26,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:56:26,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:56:26,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:56:26,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:56:26,248 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:56:26,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:56:26,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:56:26,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:56:26,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:56:26,255 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:56:26,256 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:56:26,258 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:56:26,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:56:26,259 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:56:26,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:56:26,260 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:56:26,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:56:26,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:56:26,264 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:56:26,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:56:26,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:56:26,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:56:26,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:56:26,321 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:56:26,321 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:56:26,322 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:56:26,322 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:56:26,322 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:56:26,323 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:56:26,324 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:56:26,324 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:56:26,325 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:56:26,325 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:56:26,325 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:56:26,326 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:56:26,326 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:56:26,326 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:56:26,327 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:56:26,327 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:56:26,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:56:26,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:56:26,328 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:56:26,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:56:26,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:56:26,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:56:26,330 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:56:26,330 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:56:26,331 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:56:26,331 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:56:26,331 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:56:26,332 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:56:26,332 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:56:26,332 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:56:26,333 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:56:26,333 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:56:26,333 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:56:26,334 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:56:26,334 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:56:26,334 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:56:26,334 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:56:26,335 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_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2022-11-23 15:56:26,699 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:56:26,722 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:56:26,725 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:56:26,727 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:56:26,727 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:56:26,729 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2022-11-23 15:56:29,944 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:56:30,240 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:56:30,241 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2022-11-23 15:56:30,261 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/data/7dc06a60c/79ec2a70d4ec4c77aa88a02d196270ff/FLAGc9ba1c31d [2022-11-23 15:56:30,286 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/data/7dc06a60c/79ec2a70d4ec4c77aa88a02d196270ff [2022-11-23 15:56:30,292 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:56:30,293 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:56:30,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:56:30,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:56:30,301 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:56:30,302 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:30,304 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55f8bfdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30, skipping insertion in model container [2022-11-23 15:56:30,304 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:30,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:56:30,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:56:30,674 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2022-11-23 15:56:30,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:56:30,818 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:56:30,852 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2022-11-23 15:56:30,897 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:56:30,917 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:56:30,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30 WrapperNode [2022-11-23 15:56:30,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:56:30,919 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:56:30,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:56:30,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:56:30,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:30,944 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:30,973 INFO L138 Inliner]: procedures = 55, calls = 100, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 194 [2022-11-23 15:56:30,973 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:56:30,974 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:56:30,974 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:56:30,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:56:30,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:30,987 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:30,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,002 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,009 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,019 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,021 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,025 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:56:31,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:56:31,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:56:31,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:56:31,035 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (1/1) ... [2022-11-23 15:56:31,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:56:31,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:31,084 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:56:31,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:56:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:56:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:56:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:56:31,123 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:56:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:56:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:56:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:56:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 15:56:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 15:56:31,124 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:56:31,124 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:56:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:56:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:56:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 15:56:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 15:56:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:56:31,125 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:56:31,125 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:56:31,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:56:31,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:56:31,211 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:56:31,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:56:31,632 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:56:31,785 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:56:31,785 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:56:31,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:31 BoogieIcfgContainer [2022-11-23 15:56:31,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:56:31,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:56:31,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:56:31,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:56:31,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:56:30" (1/3) ... [2022-11-23 15:56:31,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ccaac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:31, skipping insertion in model container [2022-11-23 15:56:31,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:56:30" (2/3) ... [2022-11-23 15:56:31,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9ccaac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:56:31, skipping insertion in model container [2022-11-23 15:56:31,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:31" (3/3) ... [2022-11-23 15:56:31,808 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2022-11-23 15:56:31,831 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:56:31,831 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:56:31,904 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:56:31,912 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;@4725bea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:56:31,913 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:56:31,918 INFO L276 IsEmpty]: Start isEmpty. Operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-23 15:56:31,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:56:31,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:31,930 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:31,931 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:31,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:31,941 INFO L85 PathProgramCache]: Analyzing trace with hash -671904148, now seen corresponding path program 1 times [2022-11-23 15:56:31,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:31,953 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267840295] [2022-11-23 15:56:31,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:31,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:32,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:32,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:56:32,202 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:32,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267840295] [2022-11-23 15:56:32,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267840295] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:32,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:32,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:56:32,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703638028] [2022-11-23 15:56:32,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:32,212 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:56:32,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:32,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:56:32,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:56:32,260 INFO L87 Difference]: Start difference. First operand has 66 states, 42 states have (on average 1.4523809523809523) internal successors, (61), 51 states have internal predecessors, (61), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) 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) [2022-11-23 15:56:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:32,381 INFO L93 Difference]: Finished difference Result 130 states and 179 transitions. [2022-11-23 15:56:32,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:56:32,384 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 [2022-11-23 15:56:32,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:32,394 INFO L225 Difference]: With dead ends: 130 [2022-11-23 15:56:32,394 INFO L226 Difference]: Without dead ends: 61 [2022-11-23 15:56:32,398 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 [2022-11-23 15:56:32,401 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:32,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 69 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:56:32,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-11-23 15:56:32,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2022-11-23 15:56:32,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.358974358974359) internal successors, (53), 47 states have internal predecessors, (53), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-23 15:56:32,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 80 transitions. [2022-11-23 15:56:32,450 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 80 transitions. Word has length 17 [2022-11-23 15:56:32,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:32,451 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 80 transitions. [2022-11-23 15:56:32,451 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) [2022-11-23 15:56:32,451 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 80 transitions. [2022-11-23 15:56:32,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 15:56:32,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:32,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:32,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:56:32,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:32,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:32,455 INFO L85 PathProgramCache]: Analyzing trace with hash -600656771, now seen corresponding path program 1 times [2022-11-23 15:56:32,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:32,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650595577] [2022-11-23 15:56:32,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:32,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:32,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:32,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:56:32,569 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:32,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650595577] [2022-11-23 15:56:32,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650595577] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:32,570 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:32,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:56:32,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796615003] [2022-11-23 15:56:32,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:32,572 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:56:32,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:32,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:56:32,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:56:32,574 INFO L87 Difference]: Start difference. First operand 61 states and 80 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) [2022-11-23 15:56:32,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:32,663 INFO L93 Difference]: Finished difference Result 94 states and 122 transitions. [2022-11-23 15:56:32,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:56:32,664 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 [2022-11-23 15:56:32,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:32,666 INFO L225 Difference]: With dead ends: 94 [2022-11-23 15:56:32,666 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 15:56:32,667 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 [2022-11-23 15:56:32,669 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 14 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:32,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 93 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:56:32,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 15:56:32,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 15:56:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 42 states have internal predecessors, (47), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 15:56:32,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 69 transitions. [2022-11-23 15:56:32,681 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 69 transitions. Word has length 18 [2022-11-23 15:56:32,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:32,681 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 69 transitions. [2022-11-23 15:56:32,682 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) [2022-11-23 15:56:32,682 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 69 transitions. [2022-11-23 15:56:32,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:56:32,683 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:32,683 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] [2022-11-23 15:56:32,684 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:56:32,684 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:32,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:32,685 INFO L85 PathProgramCache]: Analyzing trace with hash -2082322244, now seen corresponding path program 1 times [2022-11-23 15:56:32,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:32,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165927710] [2022-11-23 15:56:32,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:32,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:32,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:32,771 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:56:32,772 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:32,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165927710] [2022-11-23 15:56:32,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165927710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:32,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:32,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:56:32,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774433220] [2022-11-23 15:56:32,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:32,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:56:32,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:32,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:56:32,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:56:32,775 INFO L87 Difference]: Start difference. First operand 53 states and 69 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) [2022-11-23 15:56:32,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:32,845 INFO L93 Difference]: Finished difference Result 155 states and 204 transitions. [2022-11-23 15:56:32,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:56:32,846 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 [2022-11-23 15:56:32,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:32,848 INFO L225 Difference]: With dead ends: 155 [2022-11-23 15:56:32,848 INFO L226 Difference]: Without dead ends: 104 [2022-11-23 15:56:32,849 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 [2022-11-23 15:56:32,850 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 56 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:32,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 127 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:56:32,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2022-11-23 15:56:32,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 101. [2022-11-23 15:56:32,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 64 states have (on average 1.390625) internal successors, (89), 79 states have internal predecessors, (89), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (22), 15 states have call predecessors, (22), 22 states have call successors, (22) [2022-11-23 15:56:32,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 133 transitions. [2022-11-23 15:56:32,872 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 133 transitions. Word has length 21 [2022-11-23 15:56:32,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:32,873 INFO L495 AbstractCegarLoop]: Abstraction has 101 states and 133 transitions. [2022-11-23 15:56:32,873 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) [2022-11-23 15:56:32,873 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 133 transitions. [2022-11-23 15:56:32,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:56:32,875 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:32,875 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] [2022-11-23 15:56:32,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:56:32,876 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:32,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:32,876 INFO L85 PathProgramCache]: Analyzing trace with hash 654606365, now seen corresponding path program 1 times [2022-11-23 15:56:32,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:32,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517754383] [2022-11-23 15:56:32,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:32,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:32,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:56:32,980 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:32,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517754383] [2022-11-23 15:56:32,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517754383] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:32,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:32,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:56:32,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491964556] [2022-11-23 15:56:32,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:32,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:56:32,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:32,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:56:32,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:56:32,984 INFO L87 Difference]: Start difference. First operand 101 states and 133 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-11-23 15:56:33,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:33,064 INFO L93 Difference]: Finished difference Result 200 states and 268 transitions. [2022-11-23 15:56:33,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:56:33,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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 [2022-11-23 15:56:33,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:33,068 INFO L225 Difference]: With dead ends: 200 [2022-11-23 15:56:33,068 INFO L226 Difference]: Without dead ends: 198 [2022-11-23 15:56:33,069 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 [2022-11-23 15:56:33,070 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:33,071 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 117 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:56:33,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-23 15:56:33,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-23 15:56:33,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 125 states have (on average 1.384) internal successors, (173), 154 states have internal predecessors, (173), 44 states have call successors, (44), 28 states have call predecessors, (44), 28 states have return successors, (48), 30 states have call predecessors, (48), 44 states have call successors, (48) [2022-11-23 15:56:33,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 265 transitions. [2022-11-23 15:56:33,121 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 265 transitions. Word has length 24 [2022-11-23 15:56:33,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:33,121 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 265 transitions. [2022-11-23 15:56:33,122 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-11-23 15:56:33,122 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 265 transitions. [2022-11-23 15:56:33,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:56:33,125 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:33,125 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] [2022-11-23 15:56:33,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:56:33,125 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:33,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:33,126 INFO L85 PathProgramCache]: Analyzing trace with hash 593014652, now seen corresponding path program 1 times [2022-11-23 15:56:33,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:33,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666386976] [2022-11-23 15:56:33,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:33,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:33,546 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:56:33,546 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:33,546 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666386976] [2022-11-23 15:56:33,547 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666386976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:33,547 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:33,547 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:56:33,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952225338] [2022-11-23 15:56:33,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:33,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:56:33,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:33,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:56:33,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:56:33,549 INFO L87 Difference]: Start difference. First operand 198 states and 265 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:56:34,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:34,013 INFO L93 Difference]: Finished difference Result 652 states and 900 transitions. [2022-11-23 15:56:34,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-23 15:56:34,015 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 44 [2022-11-23 15:56:34,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:34,019 INFO L225 Difference]: With dead ends: 652 [2022-11-23 15:56:34,020 INFO L226 Difference]: Without dead ends: 456 [2022-11-23 15:56:34,031 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 [2022-11-23 15:56:34,032 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 129 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:34,033 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 177 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:56:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 456 states. [2022-11-23 15:56:34,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 456 to 418. [2022-11-23 15:56:34,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 418 states, 281 states have (on average 1.291814946619217) internal successors, (363), 310 states have internal predecessors, (363), 68 states have call successors, (68), 58 states have call predecessors, (68), 68 states have return successors, (104), 68 states have call predecessors, (104), 68 states have call successors, (104) [2022-11-23 15:56:34,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 535 transitions. [2022-11-23 15:56:34,133 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 535 transitions. Word has length 44 [2022-11-23 15:56:34,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:34,133 INFO L495 AbstractCegarLoop]: Abstraction has 418 states and 535 transitions. [2022-11-23 15:56:34,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 states have internal predecessors, (36), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:56:34,134 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 535 transitions. [2022-11-23 15:56:34,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2022-11-23 15:56:34,145 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:34,146 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 15:56:34,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:56:34,147 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:34,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:34,149 INFO L85 PathProgramCache]: Analyzing trace with hash 486689996, now seen corresponding path program 1 times [2022-11-23 15:56:34,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:34,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88452141] [2022-11-23 15:56:34,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:34,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:34,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:56:34,251 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:34,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88452141] [2022-11-23 15:56:34,251 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88452141] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:34,251 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:34,252 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:56:34,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518692274] [2022-11-23 15:56:34,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:34,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:56:34,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:34,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:56:34,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:56:34,254 INFO L87 Difference]: Start difference. First operand 418 states and 535 transitions. Second operand has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:56:34,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:34,411 INFO L93 Difference]: Finished difference Result 467 states and 599 transitions. [2022-11-23 15:56:34,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:56:34,412 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 52 [2022-11-23 15:56:34,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:34,421 INFO L225 Difference]: With dead ends: 467 [2022-11-23 15:56:34,421 INFO L226 Difference]: Without dead ends: 203 [2022-11-23 15:56:34,422 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 [2022-11-23 15:56:34,431 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 87 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:34,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 124 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:56:34,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2022-11-23 15:56:34,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2022-11-23 15:56:34,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 137 states have (on average 1.2481751824817517) internal successors, (171), 150 states have internal predecessors, (171), 32 states have call successors, (32), 28 states have call predecessors, (32), 33 states have return successors, (50), 33 states have call predecessors, (50), 32 states have call successors, (50) [2022-11-23 15:56:34,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 253 transitions. [2022-11-23 15:56:34,473 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 253 transitions. Word has length 52 [2022-11-23 15:56:34,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:34,474 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 253 transitions. [2022-11-23 15:56:34,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.0) internal successors, (42), 4 states have internal predecessors, (42), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-23 15:56:34,479 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 253 transitions. [2022-11-23 15:56:34,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-11-23 15:56:34,483 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:34,484 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-23 15:56:34,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:56:34,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:34,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:34,485 INFO L85 PathProgramCache]: Analyzing trace with hash 1939191867, now seen corresponding path program 1 times [2022-11-23 15:56:34,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:34,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165130646] [2022-11-23 15:56:34,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:34,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:34,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:34,675 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-11-23 15:56:34,675 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:34,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165130646] [2022-11-23 15:56:34,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165130646] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:56:34,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [683120331] [2022-11-23 15:56:34,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:34,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:34,676 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:34,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:56:34,686 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:56:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:34,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-23 15:56:34,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:56:34,958 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:56:34,958 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:56:34,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [683120331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:34,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:56:34,959 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2022-11-23 15:56:34,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881333786] [2022-11-23 15:56:34,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:34,959 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:56:34,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:56:34,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:56:34,961 INFO L87 Difference]: Start difference. First operand 203 states and 253 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 15:56:35,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:35,045 INFO L93 Difference]: Finished difference Result 406 states and 505 transitions. [2022-11-23 15:56:35,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:56:35,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2022-11-23 15:56:35,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:35,050 INFO L225 Difference]: With dead ends: 406 [2022-11-23 15:56:35,050 INFO L226 Difference]: Without dead ends: 205 [2022-11-23 15:56:35,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:56:35,054 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 28 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:35,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 108 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:56:35,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-23 15:56:35,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 203. [2022-11-23 15:56:35,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 137 states have (on average 1.2335766423357664) internal successors, (169), 150 states have internal predecessors, (169), 32 states have call successors, (32), 28 states have call predecessors, (32), 33 states have return successors, (44), 33 states have call predecessors, (44), 32 states have call successors, (44) [2022-11-23 15:56:35,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 245 transitions. [2022-11-23 15:56:35,095 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 245 transitions. Word has length 57 [2022-11-23 15:56:35,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:35,096 INFO L495 AbstractCegarLoop]: Abstraction has 203 states and 245 transitions. [2022-11-23 15:56:35,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 3 states have call successors, (5) [2022-11-23 15:56:35,097 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 245 transitions. [2022-11-23 15:56:35,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2022-11-23 15:56:35,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:35,100 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:35,120 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:56:35,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 15:56:35,310 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:35,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:35,310 INFO L85 PathProgramCache]: Analyzing trace with hash -2043760509, now seen corresponding path program 1 times [2022-11-23 15:56:35,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:35,311 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834998232] [2022-11-23 15:56:35,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:35,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:35,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:35,720 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-11-23 15:56:35,720 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:35,720 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834998232] [2022-11-23 15:56:35,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834998232] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:35,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:56:35,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:56:35,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496891898] [2022-11-23 15:56:35,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:35,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:56:35,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:35,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:56:35,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:56:35,725 INFO L87 Difference]: Start difference. First operand 203 states and 245 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 15:56:36,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:36,129 INFO L93 Difference]: Finished difference Result 483 states and 595 transitions. [2022-11-23 15:56:36,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 15:56:36,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) Word has length 59 [2022-11-23 15:56:36,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:36,133 INFO L225 Difference]: With dead ends: 483 [2022-11-23 15:56:36,133 INFO L226 Difference]: Without dead ends: 282 [2022-11-23 15:56:36,134 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:56:36,139 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 155 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 194 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 157 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 194 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:36,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 157 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 194 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:56:36,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-23 15:56:36,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 237. [2022-11-23 15:56:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 161 states have (on average 1.2236024844720497) internal successors, (197), 175 states have internal predecessors, (197), 37 states have call successors, (37), 33 states have call predecessors, (37), 38 states have return successors, (49), 38 states have call predecessors, (49), 37 states have call successors, (49) [2022-11-23 15:56:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 283 transitions. [2022-11-23 15:56:36,197 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 283 transitions. Word has length 59 [2022-11-23 15:56:36,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:36,197 INFO L495 AbstractCegarLoop]: Abstraction has 237 states and 283 transitions. [2022-11-23 15:56:36,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 4 states have call successors, (7), 3 states have call predecessors, (7), 3 states have return successors, (6), 2 states have call predecessors, (6), 4 states have call successors, (6) [2022-11-23 15:56:36,198 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 283 transitions. [2022-11-23 15:56:36,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2022-11-23 15:56:36,199 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:36,200 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:36,200 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:56:36,200 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:36,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:36,200 INFO L85 PathProgramCache]: Analyzing trace with hash 456689050, now seen corresponding path program 1 times [2022-11-23 15:56:36,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:36,201 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015150845] [2022-11-23 15:56:36,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:36,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:36,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:36,417 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-23 15:56:36,417 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:36,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015150845] [2022-11-23 15:56:36,417 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015150845] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:56:36,417 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840941083] [2022-11-23 15:56:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:36,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:36,418 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:36,419 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:56:36,447 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 15:56:36,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:36,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-23 15:56:36,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:56:36,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-23 15:56:36,559 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 15:56:36,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840941083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:56:36,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 15:56:36,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2022-11-23 15:56:36,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1372314106] [2022-11-23 15:56:36,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:36,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:56:36,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:36,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:56:36,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:56:36,562 INFO L87 Difference]: Start difference. First operand 237 states and 283 transitions. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 15:56:36,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:36,646 INFO L93 Difference]: Finished difference Result 403 states and 482 transitions. [2022-11-23 15:56:36,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:56:36,646 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 62 [2022-11-23 15:56:36,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:36,648 INFO L225 Difference]: With dead ends: 403 [2022-11-23 15:56:36,648 INFO L226 Difference]: Without dead ends: 202 [2022-11-23 15:56:36,649 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:56:36,650 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 38 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:36,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 166 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:56:36,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-11-23 15:56:36,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 189. [2022-11-23 15:56:36,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 127 states have (on average 1.1968503937007875) internal successors, (152), 139 states have internal predecessors, (152), 30 states have call successors, (30), 27 states have call predecessors, (30), 31 states have return successors, (37), 30 states have call predecessors, (37), 30 states have call successors, (37) [2022-11-23 15:56:36,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 219 transitions. [2022-11-23 15:56:36,685 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 219 transitions. Word has length 62 [2022-11-23 15:56:36,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:36,686 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 219 transitions. [2022-11-23 15:56:36,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 15:56:36,686 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 219 transitions. [2022-11-23 15:56:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-23 15:56:36,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:36,688 INFO L195 NwaCegarLoop]: trace histogram [3, 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] [2022-11-23 15:56:36,703 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 15:56:36,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:36,894 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:36,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:36,894 INFO L85 PathProgramCache]: Analyzing trace with hash 1884966275, now seen corresponding path program 1 times [2022-11-23 15:56:36,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:36,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897590030] [2022-11-23 15:56:36,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:36,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:37,037 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:56:37,038 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:37,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897590030] [2022-11-23 15:56:37,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1897590030] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:56:37,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [382813059] [2022-11-23 15:56:37,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:37,039 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:37,039 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:37,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:56:37,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 15:56:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:37,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-23 15:56:37,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:56:37,315 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-11-23 15:56:37,315 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:56:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 15:56:37,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [382813059] provided 1 perfect and 1 imperfect interpolant sequences [2022-11-23 15:56:37,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-11-23 15:56:37,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 5] total 10 [2022-11-23 15:56:37,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562123454] [2022-11-23 15:56:37,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:56:37,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:56:37,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:37,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:56:37,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:56:37,481 INFO L87 Difference]: Start difference. First operand 189 states and 219 transitions. Second operand has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 15:56:37,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:37,711 INFO L93 Difference]: Finished difference Result 514 states and 601 transitions. [2022-11-23 15:56:37,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:56:37,712 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2022-11-23 15:56:37,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:37,714 INFO L225 Difference]: With dead ends: 514 [2022-11-23 15:56:37,715 INFO L226 Difference]: Without dead ends: 327 [2022-11-23 15:56:37,715 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 132 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-11-23 15:56:37,716 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 34 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:37,716 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 249 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:56:37,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2022-11-23 15:56:37,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 308. [2022-11-23 15:56:37,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 308 states, 209 states have (on average 1.1722488038277512) internal successors, (245), 225 states have internal predecessors, (245), 48 states have call successors, (48), 43 states have call predecessors, (48), 50 states have return successors, (58), 49 states have call predecessors, (58), 48 states have call successors, (58) [2022-11-23 15:56:37,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 308 states to 308 states and 351 transitions. [2022-11-23 15:56:37,790 INFO L78 Accepts]: Start accepts. Automaton has 308 states and 351 transitions. Word has length 67 [2022-11-23 15:56:37,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:37,790 INFO L495 AbstractCegarLoop]: Abstraction has 308 states and 351 transitions. [2022-11-23 15:56:37,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.2) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 2 states have call successors, (8) [2022-11-23 15:56:37,791 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states and 351 transitions. [2022-11-23 15:56:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2022-11-23 15:56:37,793 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:56:37,794 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:56:37,804 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-11-23 15:56:37,999 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 15:56:38,000 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:56:38,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:56:38,001 INFO L85 PathProgramCache]: Analyzing trace with hash 353583973, now seen corresponding path program 1 times [2022-11-23 15:56:38,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:56:38,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348769253] [2022-11-23 15:56:38,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:38,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:56:38,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:38,268 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:56:38,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:56:38,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348769253] [2022-11-23 15:56:38,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348769253] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:56:38,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1736599726] [2022-11-23 15:56:38,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:56:38,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:38,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:56:38,270 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:56:38,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 15:56:38,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:56:38,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 26 conjunts are in the unsatisfiable core [2022-11-23 15:56:38,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:56:38,685 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 15 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:56:38,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:56:39,128 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-23 15:56:39,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1736599726] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:56:39,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [140916764] [2022-11-23 15:56:39,158 INFO L159 IcfgInterpreter]: Started Sifa with 45 locations of interest [2022-11-23 15:56:39,159 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:56:39,163 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:56:39,171 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:56:39,171 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:56:46,767 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 130 for LOIs [2022-11-23 15:56:46,801 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-23 15:56:47,162 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 39 for LOIs [2022-11-23 15:56:47,274 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 41 for LOIs [2022-11-23 15:56:47,282 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 32 for LOIs [2022-11-23 15:56:47,287 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 42 for LOIs [2022-11-23 15:56:47,294 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:56:54,381 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '9504#(and (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~5#1|) (= ~head~0.offset 0) (<= |timeShift_isPumpRunning_#res#1| 2147483647) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~5#1|) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1|) (= 1 ~systemActive~0) (<= 0 ~methAndRunningLastTime~0) (<= 0 |old(~methAndRunningLastTime~0)|) (<= 0 ~methaneLevelCritical~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 1) (<= 0 (+ |timeShift_isPumpRunning_#res#1| 2147483648)) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp___0~0#1| 0)) (not (= ~methAndRunningLastTime~0 0)) (<= 0 |#StackHeapBarrier|) (not (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:56:54,382 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:56:54,382 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:56:54,382 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 11] total 23 [2022-11-23 15:56:54,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532342236] [2022-11-23 15:56:54,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:56:54,383 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-23 15:56:54,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:56:54,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-23 15:56:54,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=318, Invalid=2438, Unknown=0, NotChecked=0, Total=2756 [2022-11-23 15:56:54,389 INFO L87 Difference]: Start difference. First operand 308 states and 351 transitions. Second operand has 23 states, 18 states have (on average 6.222222222222222) internal successors, (112), 18 states have internal predecessors, (112), 10 states have call successors, (26), 8 states have call predecessors, (26), 12 states have return successors, (24), 13 states have call predecessors, (24), 10 states have call successors, (24) [2022-11-23 15:56:55,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:56:55,706 INFO L93 Difference]: Finished difference Result 620 states and 728 transitions. [2022-11-23 15:56:55,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-11-23 15:56:55,707 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 18 states have (on average 6.222222222222222) internal successors, (112), 18 states have internal predecessors, (112), 10 states have call successors, (26), 8 states have call predecessors, (26), 12 states have return successors, (24), 13 states have call predecessors, (24), 10 states have call successors, (24) Word has length 70 [2022-11-23 15:56:55,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:56:55,708 INFO L225 Difference]: With dead ends: 620 [2022-11-23 15:56:55,708 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:56:55,711 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 240 GetRequests, 161 SyntacticMatches, 11 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1622 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=533, Invalid=4297, Unknown=0, NotChecked=0, Total=4830 [2022-11-23 15:56:55,712 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 236 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:56:55,712 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 234 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 881 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-23 15:56:55,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:56:55,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:56:55,713 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) [2022-11-23 15:56:55,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:56:55,713 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2022-11-23 15:56:55,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:56:55,714 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:56:55,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 18 states have (on average 6.222222222222222) internal successors, (112), 18 states have internal predecessors, (112), 10 states have call successors, (26), 8 states have call predecessors, (26), 12 states have return successors, (24), 13 states have call predecessors, (24), 10 states have call successors, (24) [2022-11-23 15:56:55,714 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:56:55,714 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:56:55,717 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:56:55,730 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 15:56:55,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:56:55,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:57:00,774 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 469 476) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 0 ~systemActive~0)) [2022-11-23 15:57:00,775 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 469 476) no Hoare annotation was computed. [2022-11-23 15:57:00,775 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 402 408) no Hoare annotation was computed. [2022-11-23 15:57:00,775 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 402 408) the Hoare annotation is: true [2022-11-23 15:57:00,776 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: (let ((.cse0 (not (= |old(~methaneLevelCritical~0)| 0))) (.cse2 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0)) (.cse3 (not (<= 1 ~pumpRunning~0))) (.cse5 (not (= ~pumpRunning~0 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse6 (= ~methaneLevelCritical~0 1)) (.cse7 (not (= |old(~methaneLevelCritical~0)| 1))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse1 .cse2 .cse4) (or .cse1 .cse3 .cse6 .cse7) (or .cse5 .cse1 .cse6 .cse7 .cse4))) [2022-11-23 15:57:00,776 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-23 15:57:00,776 INFO L899 garLoopResultBuilder]: For program point L382-1(lines 381 400) no Hoare annotation was computed. [2022-11-23 15:57:00,776 INFO L899 garLoopResultBuilder]: For program point L444(lines 444 452) no Hoare annotation was computed. [2022-11-23 15:57:00,776 INFO L899 garLoopResultBuilder]: For program point L440(lines 440 457) no Hoare annotation was computed. [2022-11-23 15:57:00,776 INFO L899 garLoopResultBuilder]: For program point L279(lines 279 285) no Hoare annotation was computed. [2022-11-23 15:57:00,777 INFO L895 garLoopResultBuilder]: At program point L300(line 300) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse2) (or .cse0 .cse1 .cse5) (or .cse3 .cse4 .cse0 .cse5) (or .cse3 (not (= 0 ~systemActive~0))))) [2022-11-23 15:57:00,777 INFO L895 garLoopResultBuilder]: At program point L482(line 482) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse2 .cse6) (or .cse4 .cse5 .cse1 .cse2 .cse3) (or .cse7 .cse4 .cse1 .cse3) (or .cse7 .cse4 .cse1 .cse6) (or .cse0 .cse1 .cse2 .cse6) (or .cse7 (not (= 0 ~systemActive~0))))) [2022-11-23 15:57:00,777 INFO L895 garLoopResultBuilder]: At program point L482-1(line 482) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse6 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 .cse2 .cse6) (or .cse4 .cse5 .cse1 .cse2 .cse3) (or .cse7 .cse4 .cse1 .cse3) (or .cse7 .cse4 .cse1 .cse6) (or .cse1 .cse2 (and .cse0 (= |timeShift_isMethaneAlarm_#t~ret18#1| 1)) .cse6) (or .cse7 (not (= 0 ~systemActive~0))))) [2022-11-23 15:57:00,778 INFO L895 garLoopResultBuilder]: At program point L272(line 272) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= ~waterLevel~0 1))) (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse6 (not (<= 1 |old(~pumpRunning~0)|))) (.cse11 (not (= ~methaneLevelCritical~0 1))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse5 (not (= 1 ~systemActive~0))) (.cse8 (<= 1 ~pumpRunning~0)) (.cse7 (not (= ~methaneLevelCritical~0 0))) (.cse12 (and .cse1 .cse4 (or .cse0 .cse10 .cse9)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5 .cse6 .cse7 (and .cse1 (not (= |timeShift_processEnvironment_~tmp~4#1| 0)))) (or (and .cse8 (not .cse9) .cse4 .cse10) .cse0 .cse3 .cse5 .cse11 .cse12) (or .cse0 .cse1 .cse3 (not (= |old(~waterLevel~0)| 1)) .cse5 .cse7) (or .cse3 .cse4 .cse5 .cse6 .cse11) (or .cse3 .cse4 .cse5 .cse6 .cse7) (or .cse5 .cse6 (and .cse1 (= |timeShift_processEnvironment_~tmp~4#1| 1)) .cse11) (or .cse0 .cse3 .cse5 (and .cse8 .cse4 .cse10) .cse7 .cse12)))) [2022-11-23 15:57:00,778 INFO L899 garLoopResultBuilder]: For program point L272-1(line 272) no Hoare annotation was computed. [2022-11-23 15:57:00,778 INFO L895 garLoopResultBuilder]: At program point L450(line 450) the Hoare annotation is: (let ((.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse5 (not (= ~methaneLevelCritical~0 1))) (.cse4 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2) (or .cse3 (= ~methAndRunningLastTime~0 0) .cse0 .cse1 .cse2) (or .cse4 .cse3 .cse0 .cse2) (or .cse0 .cse1 .cse5) (or .cse4 .cse3 .cse0 .cse5) (or .cse4 (not (= 0 ~systemActive~0))))) [2022-11-23 15:57:00,779 INFO L895 garLoopResultBuilder]: At program point L446(line 446) the Hoare annotation is: (let ((.cse5 (= ~methAndRunningLastTime~0 0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 1))) (.cse7 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 .cse1 (and .cse2 (= |timeShift_processEnvironment_~tmp~4#1| 1)) .cse3) (or .cse4 .cse5 .cse0 .cse1 .cse3) (or .cse4 .cse5 .cse0 .cse1 .cse6) (or .cse0 (and .cse2 (not (= |timeShift_processEnvironment_~tmp~4#1| 0))) .cse1 .cse6) (or .cse7 .cse4 .cse0 .cse6) (or .cse7 .cse4 .cse0 .cse3) (or .cse7 (not (= 0 ~systemActive~0))))) [2022-11-23 15:57:00,779 INFO L895 garLoopResultBuilder]: At program point L455(line 455) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0)))) (let ((.cse4 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse6 (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (or .cse3 (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)))) (.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse5 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse0 .cse5 .cse6) (or .cse3 .cse4 .cse0 .cse2 .cse6) (or .cse0 .cse1 .cse5) (or .cse3 (not (= 0 ~systemActive~0)))))) [2022-11-23 15:57:00,779 INFO L895 garLoopResultBuilder]: At program point L455-1(lines 436 460) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse8 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~waterLevel~0 1))) (let ((.cse1 (not (<= 1 |old(~pumpRunning~0)|))) (.cse10 (not (= ~methaneLevelCritical~0 1))) (.cse9 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse4 (<= 1 ~pumpRunning~0)) (.cse2 (not (= ~methaneLevelCritical~0 0))) (.cse11 (and .cse3 .cse6 (or .cse8 .cse7 .cse5)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 .cse1 .cse2 (and .cse3 (not (= |timeShift_processEnvironment_~tmp~4#1| 0)))) (or (and .cse4 (not .cse5) .cse6 .cse7) .cse8 .cse9 .cse0 .cse10 .cse11) (or .cse8 .cse3 .cse9 (not (= |old(~waterLevel~0)| 1)) .cse0 .cse2) (or .cse9 .cse6 .cse0 .cse1 .cse10) (or .cse9 .cse6 .cse0 .cse1 .cse2) (or .cse0 .cse1 (and .cse3 (= |timeShift_processEnvironment_~tmp~4#1| 1)) .cse10) (or .cse8 .cse9 .cse0 (and .cse4 .cse6 .cse7) .cse2 .cse11) (or .cse8 (not (= 0 ~systemActive~0)))))) [2022-11-23 15:57:00,780 INFO L899 garLoopResultBuilder]: For program point L389-1(lines 389 395) no Hoare annotation was computed. [2022-11-23 15:57:00,780 INFO L899 garLoopResultBuilder]: For program point L278(lines 278 288) no Hoare annotation was computed. [2022-11-23 15:57:00,780 INFO L895 garLoopResultBuilder]: At program point L274(lines 274 291) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse13 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= ~waterLevel~0 1)) (.cse11 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0))) (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (and .cse1 (or .cse0 .cse13 .cse9) .cse11)) (.cse8 (<= 1 ~pumpRunning~0)) (.cse3 (= ~methAndRunningLastTime~0 0)) (.cse10 (or .cse0 .cse13)) (.cse6 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= 1 ~systemActive~0))) (.cse5 (not (<= 1 |old(~pumpRunning~0)|))) (.cse12 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 (not (= 0 ~systemActive~0))) (or .cse2 .cse3 .cse4 .cse5 (and .cse0 .cse1) .cse6) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse4 .cse6) (or .cse0 .cse2 .cse4 .cse7 (and .cse8 (not .cse9) .cse3 .cse10 .cse11) .cse12) (or .cse0 .cse2 .cse4 .cse6 .cse7 (and .cse8 .cse3 .cse10 .cse11)) (or (and .cse0 .cse1 (not (= |timeShift_processEnvironment_~tmp~4#1| 0)) .cse11) .cse4 .cse5 .cse6 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse11)) (or (and .cse0 .cse1 (= |timeShift_processEnvironment_~tmp~4#1| 1) .cse11) .cse4 .cse5 .cse12)))) [2022-11-23 15:57:00,780 INFO L895 garLoopResultBuilder]: At program point L274-1(lines 266 294) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= ~methAndRunningLastTime~0 0)) (.cse6 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~1#1| ~methaneLevelCritical~0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse14 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse15 (= ~waterLevel~0 1))) (let ((.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse10 (<= 1 ~pumpRunning~0)) (.cse11 (not .cse15)) (.cse12 (or .cse0 .cse14)) (.cse7 (not (= ~methaneLevelCritical~0 1))) (.cse13 (and .cse1 .cse2 (or .cse14 .cse15) .cse6)) (.cse3 (not .cse5)) (.cse4 (not (<= 1 |old(~pumpRunning~0)|))) (.cse9 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 (not (= 0 ~systemActive~0)) (and .cse1 .cse2)) (or .cse3 .cse4 (and .cse0 .cse1 (= |timeShift_processEnvironment_~tmp~4#1| 1) .cse2 .cse5 .cse6) .cse7) (or .cse0 .cse8 .cse3 .cse9 (and .cse10 .cse11 .cse2 .cse12 .cse6) .cse13) (or .cse0 .cse8 (and .cse10 .cse11 .cse12 .cse6) .cse3 .cse7 .cse13) (or .cse3 .cse4 .cse9 (and .cse0 .cse1 .cse2 (not (= |timeShift_processEnvironment_~tmp~4#1| 0)) .cse5 .cse6) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 .cse6))))) [2022-11-23 15:57:00,781 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 378 401) the Hoare annotation is: (let ((.cse13 (<= 1 ~pumpRunning~0)) (.cse12 (= 1 ~systemActive~0)) (.cse14 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~pumpRunning~0 0)) (.cse9 (= ~methAndRunningLastTime~0 0)) (.cse15 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse6 (not (= 0 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse10 (and .cse14 .cse5 .cse9 .cse15)) (.cse0 (and .cse13 .cse14 .cse12 .cse15)) (.cse7 (and .cse13 .cse14 .cse9 .cse12 .cse15)) (.cse8 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not .cse12)) (.cse2 (not (<= 1 |old(~pumpRunning~0)|))) (.cse11 (not (= ~methaneLevelCritical~0 1)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse6) (or .cse7 .cse8 .cse1 .cse2 .cse3) (or .cse4 .cse8 .cse9 .cse6) (or .cse4 .cse8 .cse1 .cse3 .cse10) (or .cse4 .cse8 .cse1 .cse11 .cse10) (or .cse0 .cse1 .cse2 .cse11) (or .cse7 .cse8 .cse1 .cse2 .cse11)))) [2022-11-23 15:57:00,781 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 378 401) no Hoare annotation was computed. [2022-11-23 15:57:00,781 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 300) no Hoare annotation was computed. [2022-11-23 15:57:00,781 INFO L902 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2022-11-23 15:57:00,781 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2022-11-23 15:57:00,781 INFO L902 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2022-11-23 15:57:00,782 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-23 15:57:00,782 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 153 182) the Hoare annotation is: true [2022-11-23 15:57:00,782 INFO L902 garLoopResultBuilder]: At program point L178(lines 153 182) the Hoare annotation is: true [2022-11-23 15:57:00,782 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2022-11-23 15:57:00,782 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2022-11-23 15:57:00,782 INFO L902 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2022-11-23 15:57:00,783 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-23 15:57:00,783 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-23 15:57:00,783 INFO L899 garLoopResultBuilder]: For program point L556(lines 556 562) no Hoare annotation was computed. [2022-11-23 15:57:00,783 INFO L895 garLoopResultBuilder]: At program point L556-1(lines 556 562) 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))) [2022-11-23 15:57:00,783 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:57:00,783 INFO L899 garLoopResultBuilder]: For program point L317(lines 316 363) no Hoare annotation was computed. [2022-11-23 15:57:00,784 INFO L899 garLoopResultBuilder]: For program point L346(lines 346 359) no Hoare annotation was computed. [2022-11-23 15:57:00,784 INFO L895 garLoopResultBuilder]: At program point L338(line 338) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse1 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse1 .cse3) (and .cse6 .cse4 .cse3 (= 0 ~systemActive~0)))) [2022-11-23 15:57:00,784 INFO L902 garLoopResultBuilder]: At program point L367(lines 306 371) the Hoare annotation is: true [2022-11-23 15:57:00,784 INFO L899 garLoopResultBuilder]: For program point L326(lines 326 332) no Hoare annotation was computed. [2022-11-23 15:57:00,784 INFO L899 garLoopResultBuilder]: For program point L326-1(lines 326 332) no Hoare annotation was computed. [2022-11-23 15:57:00,784 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:57:00,784 INFO L895 garLoopResultBuilder]: At program point L558(line 558) the Hoare annotation is: (and (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (not (= 0 ~systemActive~0))) [2022-11-23 15:57:00,784 INFO L895 garLoopResultBuilder]: At program point L364(lines 315 365) the Hoare annotation is: false [2022-11-23 15:57:00,784 INFO L899 garLoopResultBuilder]: For program point L352(lines 352 358) no Hoare annotation was computed. [2022-11-23 15:57:00,785 INFO L895 garLoopResultBuilder]: At program point L352-2(lines 346 359) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methAndRunningLastTime~0 0)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse6 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse6 .cse1 .cse3) (and .cse4 .cse3 (= 0 ~systemActive~0)) (and .cse0 .cse6 .cse1 .cse3))) [2022-11-23 15:57:00,785 INFO L895 garLoopResultBuilder]: At program point L241(lines 241 248) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 15:57:00,785 INFO L899 garLoopResultBuilder]: For program point L336(lines 336 342) no Hoare annotation was computed. [2022-11-23 15:57:00,785 INFO L899 garLoopResultBuilder]: For program point L336-1(lines 336 342) no Hoare annotation was computed. [2022-11-23 15:57:00,785 INFO L902 garLoopResultBuilder]: At program point L241-2(lines 241 248) the Hoare annotation is: true [2022-11-23 15:57:00,785 INFO L895 garLoopResultBuilder]: At program point L361(lines 316 363) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse1 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse1 .cse3) (and .cse6 .cse4 .cse3 (= 0 ~systemActive~0)))) [2022-11-23 15:57:00,785 INFO L895 garLoopResultBuilder]: At program point L328(line 328) the Hoare annotation is: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (= ~methaneLevelCritical~0 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse4 .cse5 .cse1 .cse3) (and .cse6 .cse4 .cse1 .cse2 .cse3) (and .cse6 .cse4 .cse5 .cse1 .cse3) (and .cse6 .cse4 .cse3 (= 0 ~systemActive~0)))) [2022-11-23 15:57:00,785 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 410 434) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1)) .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (not (<= 1 |old(~pumpRunning~0)|)) .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2022-11-23 15:57:00,786 INFO L895 garLoopResultBuilder]: At program point L424(line 424) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (and (<= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0) (< 0 (+ |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 1)))))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse0 .cse3 .cse1 .cse4) (or .cse2 .cse0 .cse3 (not (= ~methaneLevelCritical~0 1)) .cse4))) [2022-11-23 15:57:00,786 INFO L895 garLoopResultBuilder]: At program point L418(lines 418 426) the Hoare annotation is: (let ((.cse1 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse3 (and (= ~pumpRunning~0 0) (or (not (= ~waterLevel~0 1)) (and (<= |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 0) (< 0 (+ |processEnvironment__wrappee__highWaterSensor_~tmp~3#1| 1)))))) (.cse4 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 (not (<= 1 |old(~pumpRunning~0)|)) .cse1) (or .cse2 .cse0 .cse3 .cse1 .cse4) (or .cse2 .cse0 .cse3 (not (= ~methaneLevelCritical~0 1)) .cse4))) [2022-11-23 15:57:00,786 INFO L895 garLoopResultBuilder]: At program point L414(lines 414 431) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse3 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 1)) .cse3) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (not (<= 1 |old(~pumpRunning~0)|)) .cse4) (or .cse0 .cse1 .cse2 .cse4 .cse3))) [2022-11-23 15:57:00,786 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 410 434) no Hoare annotation was computed. [2022-11-23 15:57:00,786 INFO L895 garLoopResultBuilder]: At program point L429(line 429) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not (= ~methaneLevelCritical~0 0))) (.cse2 (not (= ~methAndRunningLastTime~0 0)))) (and (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 1)) .cse2) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1 (not (<= 1 |old(~pumpRunning~0)|)) .cse3) (or .cse0 .cse1 .cse3 .cse2))) [2022-11-23 15:57:00,786 INFO L899 garLoopResultBuilder]: For program point L429-1(lines 410 434) no Hoare annotation was computed. [2022-11-23 15:57:00,787 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-23 15:57:00,787 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (= ~methAndRunningLastTime~0 0)) (.cse10 (= 1 ~systemActive~0)) (.cse8 (= ~pumpRunning~0 0))) (let ((.cse1 (not (<= 1 ~pumpRunning~0))) (.cse4 (not (= ~methaneLevelCritical~0 0))) (.cse6 (not .cse8)) (.cse0 (not .cse10)) (.cse2 (not (= ~methaneLevelCritical~0 1))) (.cse5 (not .cse9)) (.cse7 (and .cse8 .cse9 .cse10 .cse3))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 .cse1 .cse3 .cse5) (or .cse6 .cse0 .cse4 .cse5 .cse7) (or .cse6 .cse0 .cse2 .cse5 .cse7)))) [2022-11-23 15:57:00,790 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:57:00,793 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:57:00,827 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:57:00 BoogieIcfgContainer [2022-11-23 15:57:00,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:57:00,828 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:57:00,828 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:57:00,829 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:57:00,829 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:56:31" (3/4) ... [2022-11-23 15:57:00,832 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:57:00,838 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 15:57:00,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:57:00,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:57:00,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:57:00,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:57:00,839 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 15:57:00,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:57:00,840 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:57:00,847 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2022-11-23 15:57:00,847 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-23 15:57:00,848 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-23 15:57:00,848 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:57:00,848 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:57:00,875 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel))) && ((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && ((((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) [2022-11-23 15:57:00,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && !(tmp == 0))) && ((((((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)))) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == 0 && tmp == 1)) || !(methaneLevelCritical == 1))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 15:57:00,876 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) [2022-11-23 15:57:00,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || ((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical))) && (((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && !(tmp == 0)) && tmp == methaneLevelCritical) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical))) && ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && tmp == methaneLevelCritical) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) [2022-11-23 15:57:00,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && aux-isMethaneLevelCritical()-aux == 1)) || !(methaneLevelCritical == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 15:57:00,877 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(waterLevel == 1)) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == methaneLevelCritical))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && !(tmp == 0)) && 1 == systemActive) && tmp == methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) [2022-11-23 15:57:00,878 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 15:57:00,879 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || (tmp <= 0 && 0 < tmp + 1)))) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || (tmp <= 0 && 0 < tmp + 1)))) || !(methaneLevelCritical == 1)) || !(methAndRunningLastTime == 0)) [2022-11-23 15:57:00,901 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:57:00,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:57:00,902 INFO L158 Benchmark]: Toolchain (without parser) took 30609.37ms. Allocated memory was 186.6MB in the beginning and 429.9MB in the end (delta: 243.3MB). Free memory was 138.3MB in the beginning and 142.0MB in the end (delta: -3.7MB). Peak memory consumption was 240.9MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,903 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:57:00,903 INFO L158 Benchmark]: CACSL2BoogieTranslator took 622.62ms. Allocated memory is still 186.6MB. Free memory was 137.8MB in the beginning and 119.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,904 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.28ms. Allocated memory is still 186.6MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,904 INFO L158 Benchmark]: Boogie Preprocessor took 55.41ms. Allocated memory is still 186.6MB. Free memory was 117.3MB in the beginning and 115.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,904 INFO L158 Benchmark]: RCFGBuilder took 757.50ms. Allocated memory is still 186.6MB. Free memory was 115.7MB in the beginning and 91.8MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,905 INFO L158 Benchmark]: TraceAbstraction took 29036.92ms. Allocated memory was 186.6MB in the beginning and 429.9MB in the end (delta: 243.3MB). Free memory was 91.0MB in the beginning and 147.2MB in the end (delta: -56.3MB). Peak memory consumption was 199.8MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,905 INFO L158 Benchmark]: Witness Printer took 73.68ms. Allocated memory is still 429.9MB. Free memory was 147.2MB in the beginning and 142.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:57:00,907 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 136.3MB. Free memory is still 78.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 622.62ms. Allocated memory is still 186.6MB. Free memory was 137.8MB in the beginning and 119.4MB in the end (delta: 18.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.28ms. Allocated memory is still 186.6MB. Free memory was 119.4MB in the beginning and 117.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 55.41ms. Allocated memory is still 186.6MB. Free memory was 117.3MB in the beginning and 115.7MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 757.50ms. Allocated memory is still 186.6MB. Free memory was 115.7MB in the beginning and 91.8MB in the end (delta: 23.9MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 29036.92ms. Allocated memory was 186.6MB in the beginning and 429.9MB in the end (delta: 243.3MB). Free memory was 91.0MB in the beginning and 147.2MB in the end (delta: -56.3MB). Peak memory consumption was 199.8MB. Max. memory is 16.1GB. * Witness Printer took 73.68ms. Allocated memory is still 429.9MB. Free memory was 147.2MB in the beginning and 142.0MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 300]: 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 9 procedures, 66 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 28.9s, OverallIterations: 11, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 841 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 822 mSDsluCounter, 1621 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 937 mSDsCounter, 277 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1589 IncrementalHoareTripleChecker+Invalid, 1866 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 277 mSolverCounterUnsat, 684 mSDtfsCounter, 1589 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 560 GetRequests, 433 SyntacticMatches, 12 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1674 ImplicationChecksByTransitivity, 8.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=418occurred in iteration=5, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 120 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 1026 PreInvPairs, 1141 NumberOfFragments, 2585 HoareAnnotationTreeSize, 1026 FomulaSimplifications, 2025 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 37 FomulaSimplificationsInter, 10277 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 747 NumberOfCodeBlocks, 747 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 867 ConstructedInterpolants, 0 QuantifiedInterpolants, 2391 SizeOfPredicates, 12 NumberOfNonLiveVariables, 1182 ConjunctsInSsa, 50 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 291/328 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 482]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == \old(pumpRunning) && aux-isMethaneLevelCritical()-aux == 1)) || !(methaneLevelCritical == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 418]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || (tmp <= 0 && 0 < tmp + 1)))) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (pumpRunning == 0 && (!(waterLevel == 1) || (tmp <= 0 && 0 < tmp + 1)))) || !(methaneLevelCritical == 1)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 556]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && !(0 == systemActive)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 378]: Loop Invariant Derived loop invariant: ((((((((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && ((((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || methAndRunningLastTime == 0) || !(0 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel))) && ((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && ((((((((1 <= pumpRunning && pumpRunning == \old(pumpRunning)) && methAndRunningLastTime == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: ((((((1 <= pumpRunning && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0) || ((((1 <= pumpRunning && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && methaneLevelCritical == 1) && splverifierCounter == 0)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0) && 0 == systemActive) - InvariantResult [Line: 414]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || !(methAndRunningLastTime == 0)) && (((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || !(methAndRunningLastTime == 0)) - InvariantResult [Line: 300]: Loop Invariant Derived loop invariant: (((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && (((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 266]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(0 == systemActive)) || (pumpRunning == 0 && methAndRunningLastTime == 0)) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == methaneLevelCritical))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || (((1 <= pumpRunning && !(waterLevel == 1)) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && (\old(waterLevel) == waterLevel || waterLevel == 1)) && tmp == methaneLevelCritical))) && ((((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && methAndRunningLastTime == 0) && !(tmp == 0)) && 1 == systemActive) && tmp == methaneLevelCritical)) || ((pumpRunning == \old(pumpRunning) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) - InvariantResult [Line: 315]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 436]: Loop Invariant Derived loop invariant: ((((((((((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && !(tmp == 0))) && ((((((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 1)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)))) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1))) && ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0))) && (((!(1 == systemActive) || !(1 <= \old(pumpRunning))) || (pumpRunning == 0 && tmp == 1)) || !(methaneLevelCritical == 1))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((1 <= pumpRunning && methAndRunningLastTime == 0) && \old(waterLevel) == waterLevel)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && methAndRunningLastTime == 0) && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 306]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 274]: Loop Invariant Derived loop invariant: (((((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || (!(\old(pumpRunning) == 0) && pumpRunning == 0)) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || !(methaneLevelCritical == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || ((((1 <= pumpRunning && !(waterLevel == 1)) && methAndRunningLastTime == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical)) || !(methaneLevelCritical == 1))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && ((!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel) || waterLevel == 1)) && tmp == methaneLevelCritical)) || (((1 <= pumpRunning && methAndRunningLastTime == 0) && (!(\old(pumpRunning) == 0) || \old(waterLevel) == waterLevel)) && tmp == methaneLevelCritical))) && (((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && !(tmp == 0)) && tmp == methaneLevelCritical) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical))) && ((((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && tmp == 1) && tmp == methaneLevelCritical) || !(1 == systemActive)) || !(1 <= \old(pumpRunning))) || !(methaneLevelCritical == 1)) RESULT: Ultimate proved your program to be correct! [2022-11-23 15:57:00,947 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33a86184-47ba-4127-9808-910631088f31/bin/utaipan-Q6hlc19bkW/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