./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product03.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1eba5ca30a3343d8953ecd039be16a8dd6d2bdab2092d3b75c2a024dd1dbf0 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-19 07:12:21,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:12:21,073 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:12:21,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:12:21,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:12:21,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:12:21,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:12:21,122 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:12:21,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:12:21,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:12:21,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:12:21,139 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:12:21,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:12:21,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:12:21,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:12:21,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:12:21,147 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:12:21,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:12:21,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:12:21,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:12:21,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:12:21,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:12:21,161 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:12:21,162 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:12:21,171 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:12:21,172 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:12:21,173 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:12:21,175 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:12:21,175 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:12:21,177 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:12:21,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:12:21,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:12:21,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:12:21,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:12:21,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:12:21,187 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:12:21,188 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:12:21,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:12:21,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:12:21,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:12:21,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:12:21,192 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:12:21,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:12:21,226 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:12:21,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:12:21,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:12:21,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:12:21,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:12:21,230 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:12:21,230 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:12:21,230 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:12:21,230 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:12:21,232 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:12:21,232 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:12:21,232 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:12:21,232 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:12:21,233 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:12:21,233 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:12:21,233 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:12:21,233 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:12:21,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:12:21,234 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:12:21,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:12:21,235 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:12:21,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:12:21,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:12:21,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:12:21,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:12:21,238 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:12:21,238 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:12:21,239 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:12:21,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:12:21,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:12:21,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:12:21,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:12:21,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:12:21,240 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:12:21,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:12:21,241 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:12:21,241 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:12:21,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:12:21,241 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:12:21,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:12:21,242 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_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1eba5ca30a3343d8953ecd039be16a8dd6d2bdab2092d3b75c2a024dd1dbf0 [2022-11-19 07:12:21,579 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:12:21,615 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:12:21,618 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:12:21,620 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:12:21,621 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:12:21,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec2_product03.cil.c [2022-11-19 07:12:21,696 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/data/2022ab748/1b8ec9da99a645769303eac88ef15243/FLAG36300ff2c [2022-11-19 07:12:22,310 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:12:22,310 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/sv-benchmarks/c/product-lines/minepump_spec2_product03.cil.c [2022-11-19 07:12:22,326 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/data/2022ab748/1b8ec9da99a645769303eac88ef15243/FLAG36300ff2c [2022-11-19 07:12:22,617 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/data/2022ab748/1b8ec9da99a645769303eac88ef15243 [2022-11-19 07:12:22,620 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:12:22,621 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:12:22,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:12:22,636 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:12:22,648 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:12:22,649 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:22" (1/1) ... [2022-11-19 07:12:22,651 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c5df11d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:22, skipping insertion in model container [2022-11-19 07:12:22,651 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:12:22" (1/1) ... [2022-11-19 07:12:22,658 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:12:22,724 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:12:23,061 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/sv-benchmarks/c/product-lines/minepump_spec2_product03.cil.c[17319,17332] [2022-11-19 07:12:23,065 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:12:23,074 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:12:23,137 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/sv-benchmarks/c/product-lines/minepump_spec2_product03.cil.c[17319,17332] [2022-11-19 07:12:23,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:12:23,154 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:12:23,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23 WrapperNode [2022-11-19 07:12:23,155 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:12:23,156 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:12:23,156 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:12:23,156 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:12:23,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,180 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,206 INFO L138 Inliner]: procedures = 51, calls = 91, calls flagged for inlining = 19, calls inlined = 16, statements flattened = 139 [2022-11-19 07:12:23,211 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:12:23,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:12:23,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:12:23,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:12:23,223 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,232 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,244 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,246 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,247 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:12:23,252 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:12:23,252 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:12:23,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:12:23,256 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (1/1) ... [2022-11-19 07:12:23,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:12:23,275 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:12:23,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:12:23,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:12:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:12:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:12:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:12:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-19 07:12:23,366 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-19 07:12:23,366 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:12:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:12:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:12:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:12:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:12:23,367 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:12:23,367 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:12:23,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:12:23,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:12:23,452 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:12:23,454 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:12:23,735 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:12:23,917 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:12:23,928 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:12:23,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:23 BoogieIcfgContainer [2022-11-19 07:12:23,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:12:23,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:12:23,940 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:12:23,944 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:12:23,944 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:12:22" (1/3) ... [2022-11-19 07:12:23,945 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684517b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:23, skipping insertion in model container [2022-11-19 07:12:23,945 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:12:23" (2/3) ... [2022-11-19 07:12:23,946 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@684517b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:12:23, skipping insertion in model container [2022-11-19 07:12:23,946 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:23" (3/3) ... [2022-11-19 07:12:23,947 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product03.cil.c [2022-11-19 07:12:23,967 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:12:23,968 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:12:24,041 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:12:24,055 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;@2bdb585e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:12:24,056 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:12:24,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 07:12:24,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-19 07:12:24,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:24,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:24,074 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:24,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:24,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1862716756, now seen corresponding path program 1 times [2022-11-19 07:12:24,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:24,094 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308497460] [2022-11-19 07:12:24,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:24,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:24,355 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:24,356 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:24,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308497460] [2022-11-19 07:12:24,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308497460] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:24,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:24,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:12:24,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285305439] [2022-11-19 07:12:24,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:24,364 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:12:24,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:24,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:12:24,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:12:24,410 INFO L87 Difference]: Start difference. First operand has 40 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 30 states have internal predecessors, (37), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-19 07:12:24,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:24,499 INFO L93 Difference]: Finished difference Result 78 states and 103 transitions. [2022-11-19 07:12:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:12:24,502 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 15 [2022-11-19 07:12:24,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:24,510 INFO L225 Difference]: With dead ends: 78 [2022-11-19 07:12:24,510 INFO L226 Difference]: Without dead ends: 35 [2022-11-19 07:12:24,515 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:12:24,519 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:24,520 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 35 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:12:24,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-19 07:12:24,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-19 07:12:24,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 23 states have (on average 1.2608695652173914) internal successors, (29), 26 states have internal predecessors, (29), 7 states have call successors, (7), 5 states have call predecessors, (7), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-19 07:12:24,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-11-19 07:12:24,560 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 15 [2022-11-19 07:12:24,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:24,560 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-11-19 07:12:24,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2022-11-19 07:12:24,561 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-11-19 07:12:24,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-19 07:12:24,562 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:24,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:24,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:12:24,563 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:24,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:24,564 INFO L85 PathProgramCache]: Analyzing trace with hash 970829504, now seen corresponding path program 1 times [2022-11-19 07:12:24,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:24,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155742474] [2022-11-19 07:12:24,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:24,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:24,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:24,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:24,663 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:24,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155742474] [2022-11-19 07:12:24,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [155742474] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:24,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:24,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:24,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135408823] [2022-11-19 07:12:24,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:24,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:24,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:24,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:24,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:24,667 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-19 07:12:24,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:24,700 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-11-19 07:12:24,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:24,701 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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 16 [2022-11-19 07:12:24,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:24,702 INFO L225 Difference]: With dead ends: 47 [2022-11-19 07:12:24,702 INFO L226 Difference]: Without dead ends: 27 [2022-11-19 07:12:24,703 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 [2022-11-19 07:12:24,704 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 7 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:24,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 33 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:12:24,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-11-19 07:12:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-11-19 07:12:24,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 4 states have call successors, (4), 4 states have call predecessors, (4), 4 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:12:24,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-19 07:12:24,712 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-19 07:12:24,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:24,712 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-19 07:12:24,713 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2022-11-19 07:12:24,713 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-19 07:12:24,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-19 07:12:24,714 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:24,714 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:12:24,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:12:24,715 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:24,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:24,715 INFO L85 PathProgramCache]: Analyzing trace with hash 940087275, now seen corresponding path program 1 times [2022-11-19 07:12:24,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:24,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892720230] [2022-11-19 07:12:24,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:24,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:24,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:24,910 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:24,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892720230] [2022-11-19 07:12:24,911 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892720230] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:24,911 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:24,911 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:12:24,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326402625] [2022-11-19 07:12:24,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:24,913 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:12:24,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:24,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:12:24,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:12:24,914 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-19 07:12:25,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:25,023 INFO L93 Difference]: Finished difference Result 74 states and 87 transitions. [2022-11-19 07:12:25,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:12:25,024 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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 18 [2022-11-19 07:12:25,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:25,027 INFO L225 Difference]: With dead ends: 74 [2022-11-19 07:12:25,027 INFO L226 Difference]: Without dead ends: 49 [2022-11-19 07:12:25,028 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:12:25,029 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 14 mSDsluCounter, 80 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:25,030 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 103 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:12:25,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-11-19 07:12:25,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 45. [2022-11-19 07:12:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 34 states have internal predecessors, (37), 7 states have call successors, (7), 7 states have call predecessors, (7), 7 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-19 07:12:25,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 51 transitions. [2022-11-19 07:12:25,043 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 51 transitions. Word has length 18 [2022-11-19 07:12:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:25,043 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 51 transitions. [2022-11-19 07:12:25,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2022-11-19 07:12:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 51 transitions. [2022-11-19 07:12:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:12:25,045 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:25,045 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] [2022-11-19 07:12:25,045 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:12:25,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:25,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:25,046 INFO L85 PathProgramCache]: Analyzing trace with hash -1293519466, now seen corresponding path program 1 times [2022-11-19 07:12:25,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:25,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888721381] [2022-11-19 07:12:25,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:25,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-19 07:12:25,185 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:25,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888721381] [2022-11-19 07:12:25,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888721381] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:25,185 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:25,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:12:25,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435154586] [2022-11-19 07:12:25,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:25,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:12:25,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:25,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:12:25,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:12:25,188 INFO L87 Difference]: Start difference. First operand 45 states and 51 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:12:25,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:25,238 INFO L93 Difference]: Finished difference Result 70 states and 82 transitions. [2022-11-19 07:12:25,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:12:25,239 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-19 07:12:25,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:25,240 INFO L225 Difference]: With dead ends: 70 [2022-11-19 07:12:25,241 INFO L226 Difference]: Without dead ends: 68 [2022-11-19 07:12:25,241 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 [2022-11-19 07:12:25,242 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 12 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:25,243 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 42 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:12:25,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-19 07:12:25,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-19 07:12:25,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 51 states have internal predecessors, (56), 11 states have call successors, (11), 11 states have call predecessors, (11), 11 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2022-11-19 07:12:25,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2022-11-19 07:12:25,264 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 21 [2022-11-19 07:12:25,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:25,267 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2022-11-19 07:12:25,267 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-19 07:12:25,268 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2022-11-19 07:12:25,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-19 07:12:25,270 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:12:25,271 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-11-19 07:12:25,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:12:25,272 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:12:25,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:12:25,273 INFO L85 PathProgramCache]: Analyzing trace with hash 106615411, now seen corresponding path program 1 times [2022-11-19 07:12:25,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:12:25,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1515600034] [2022-11-19 07:12:25,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:12:25,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:12:25,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:12:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:12:25,749 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:12:25,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1515600034] [2022-11-19 07:12:25,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1515600034] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:12:25,749 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:12:25,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-19 07:12:25,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037493337] [2022-11-19 07:12:25,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:12:25,750 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-19 07:12:25,751 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:12:25,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-19 07:12:25,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-19 07:12:25,752 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:12:25,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:12:25,876 INFO L93 Difference]: Finished difference Result 92 states and 109 transitions. [2022-11-19 07:12:25,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-19 07:12:25,876 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 38 [2022-11-19 07:12:25,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:12:25,877 INFO L225 Difference]: With dead ends: 92 [2022-11-19 07:12:25,877 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:12:25,878 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:12:25,884 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:12:25,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 33 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:12:25,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:12:25,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:12:25,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-19 07:12:25,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:12:25,891 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 38 [2022-11-19 07:12:25,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:12:25,892 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:12:25,892 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2022-11-19 07:12:25,892 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:12:25,892 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:12:25,895 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:12:25,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:12:25,898 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:12:26,205 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 279 290) the Hoare annotation is: true [2022-11-19 07:12:26,206 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 279 290) no Hoare annotation was computed. [2022-11-19 07:12:26,206 INFO L902 garLoopResultBuilder]: At program point L386-1(lines 386 390) the Hoare annotation is: true [2022-11-19 07:12:26,206 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 372 401) no Hoare annotation was computed. [2022-11-19 07:12:26,206 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 372 401) the Hoare annotation is: true [2022-11-19 07:12:26,207 INFO L902 garLoopResultBuilder]: At program point L382-2(lines 382 396) the Hoare annotation is: true [2022-11-19 07:12:26,207 INFO L902 garLoopResultBuilder]: At program point L378(line 378) the Hoare annotation is: true [2022-11-19 07:12:26,207 INFO L899 garLoopResultBuilder]: For program point L378-1(line 378) no Hoare annotation was computed. [2022-11-19 07:12:26,207 INFO L902 garLoopResultBuilder]: At program point L397(lines 372 401) the Hoare annotation is: true [2022-11-19 07:12:26,207 INFO L899 garLoopResultBuilder]: For program point L393(line 393) no Hoare annotation was computed. [2022-11-19 07:12:26,208 INFO L899 garLoopResultBuilder]: For program point L386(lines 386 390) no Hoare annotation was computed. [2022-11-19 07:12:26,209 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 291 299) the Hoare annotation is: true [2022-11-19 07:12:26,209 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 291 299) no Hoare annotation was computed. [2022-11-19 07:12:26,209 INFO L899 garLoopResultBuilder]: For program point L857(lines 857 867) no Hoare annotation was computed. [2022-11-19 07:12:26,210 INFO L895 garLoopResultBuilder]: At program point L853(lines 853 870) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)))) [2022-11-19 07:12:26,210 INFO L895 garLoopResultBuilder]: At program point L853-1(lines 845 873) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or .cse0 .cse1 (not (= ~methaneLevelCritical~0 0)) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~5#1| 0)))) [2022-11-19 07:12:26,211 INFO L895 garLoopResultBuilder]: At program point L851(line 851) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-19 07:12:26,211 INFO L899 garLoopResultBuilder]: For program point L851-1(line 851) no Hoare annotation was computed. [2022-11-19 07:12:26,211 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 864) no Hoare annotation was computed. [2022-11-19 07:12:26,212 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 63 86) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (= ~methAndRunningLastTime~0 0) (not (= ~pumpRunning~0 0))) [2022-11-19 07:12:26,212 INFO L895 garLoopResultBuilder]: At program point L879(line 879) the Hoare annotation is: (or (not (= |old(~methAndRunningLastTime~0)| 0)) (not (= ~pumpRunning~0 0))) [2022-11-19 07:12:26,212 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2022-11-19 07:12:26,213 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 879) no Hoare annotation was computed. [2022-11-19 07:12:26,213 INFO L895 garLoopResultBuilder]: At program point L217(line 217) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 07:12:26,213 INFO L902 garLoopResultBuilder]: At program point L246(lines 185 250) the Hoare annotation is: true [2022-11-19 07:12:26,213 INFO L899 garLoopResultBuilder]: For program point L205(lines 205 211) no Hoare annotation was computed. [2022-11-19 07:12:26,214 INFO L899 garLoopResultBuilder]: For program point L205-1(lines 205 211) no Hoare annotation was computed. [2022-11-19 07:12:26,214 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:12:26,214 INFO L895 garLoopResultBuilder]: At program point L243(lines 194 244) the Hoare annotation is: false [2022-11-19 07:12:26,215 INFO L895 garLoopResultBuilder]: At program point L231-2(lines 225 238) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 07:12:26,215 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:12:26,216 INFO L899 garLoopResultBuilder]: For program point L215(lines 215 221) no Hoare annotation was computed. [2022-11-19 07:12:26,216 INFO L895 garLoopResultBuilder]: At program point L215-1(lines 215 221) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 07:12:26,217 INFO L895 garLoopResultBuilder]: At program point L240(lines 195 242) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 07:12:26,218 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-19 07:12:26,218 INFO L895 garLoopResultBuilder]: At program point L455(lines 455 462) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0)) [2022-11-19 07:12:26,221 INFO L902 garLoopResultBuilder]: At program point L455-2(lines 455 462) the Hoare annotation is: true [2022-11-19 07:12:26,221 INFO L899 garLoopResultBuilder]: For program point L196(lines 195 242) no Hoare annotation was computed. [2022-11-19 07:12:26,222 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 267 278) no Hoare annotation was computed. [2022-11-19 07:12:26,222 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 267 278) the Hoare annotation is: true [2022-11-19 07:12:26,228 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-19 07:12:26,230 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:12:26,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:12:26 BoogieIcfgContainer [2022-11-19 07:12:26,258 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:12:26,260 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:12:26,260 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:12:26,260 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:12:26,261 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:12:23" (3/4) ... [2022-11-19 07:12:26,265 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:12:26,271 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:12:26,272 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:12:26,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-19 07:12:26,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:12:26,273 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:12:26,283 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2022-11-19 07:12:26,283 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-19 07:12:26,284 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-19 07:12:26,284 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:12:26,284 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:12:26,315 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) [2022-11-19 07:12:26,317 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-19 07:12:26,318 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) [2022-11-19 07:12:26,319 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) [2022-11-19 07:12:26,357 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:12:26,357 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:12:26,358 INFO L158 Benchmark]: Toolchain (without parser) took 3736.82ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 109.8MB in the beginning and 162.4MB in the end (delta: -52.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-19 07:12:26,358 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:12:26,359 INFO L158 Benchmark]: CACSL2BoogieTranslator took 519.73ms. Allocated memory is still 138.4MB. Free memory was 109.5MB in the beginning and 106.9MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-19 07:12:26,360 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.79ms. Allocated memory is still 138.4MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:12:26,360 INFO L158 Benchmark]: Boogie Preprocessor took 39.35ms. Allocated memory is still 138.4MB. Free memory was 104.8MB in the beginning and 103.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:12:26,360 INFO L158 Benchmark]: RCFGBuilder took 679.58ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 82.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-19 07:12:26,361 INFO L158 Benchmark]: TraceAbstraction took 2323.99ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 82.1MB in the beginning and 166.6MB in the end (delta: -84.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-19 07:12:26,361 INFO L158 Benchmark]: Witness Printer took 97.58ms. Allocated memory is still 199.2MB. Free memory was 166.6MB in the beginning and 162.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:12:26,364 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 92.3MB. Free memory is still 51.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 519.73ms. Allocated memory is still 138.4MB. Free memory was 109.5MB in the beginning and 106.9MB in the end (delta: 2.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.79ms. Allocated memory is still 138.4MB. Free memory was 106.9MB in the beginning and 104.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 39.35ms. Allocated memory is still 138.4MB. Free memory was 104.8MB in the beginning and 103.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 679.58ms. Allocated memory is still 138.4MB. Free memory was 103.4MB in the beginning and 82.8MB in the end (delta: 20.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 2323.99ms. Allocated memory was 138.4MB in the beginning and 199.2MB in the end (delta: 60.8MB). Free memory was 82.1MB in the beginning and 166.6MB in the end (delta: -84.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 97.58ms. Allocated memory is still 199.2MB. Free memory was 166.6MB in the beginning and 162.4MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. 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: 879]: 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 6 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 58 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 53 mSDsluCounter, 246 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 126 mSDsCounter, 8 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 166 IncrementalHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8 mSolverCounterUnsat, 120 mSDtfsCounter, 166 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=4, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 23 LocationsWithAnnotation, 88 PreInvPairs, 103 NumberOfFragments, 163 HoareAnnotationTreeSize, 88 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 23 FomulaSimplificationsInter, 260 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 108 NumberOfCodeBlocks, 108 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 103 ConstructedInterpolants, 0 QuantifiedInterpolants, 199 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 15/15 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: 455]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0 - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0) - InvariantResult [Line: 455]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) - InvariantResult [Line: 195]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && methAndRunningLastTime == 0) && splverifierCounter == 0 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 879]: Loop Invariant Derived loop invariant: !(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0) - InvariantResult [Line: 382]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 372]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 845]: Loop Invariant Derived loop invariant: ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(pumpRunning == 0)) && (((!(\old(methAndRunningLastTime) == 0) || !(pumpRunning == 0)) || !(methaneLevelCritical == 0)) || tmp == 0) RESULT: Ultimate proved your program to be correct! [2022-11-19 07:12:26,407 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ac3fb42c-91be-4052-a21f-87d55be1e34c/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE