./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/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_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/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_136bae09-9376-4dfc-9263-3f7117944a65/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 fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- 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 15:08:13,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:08:13,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:08:13,088 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:08:13,089 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:08:13,090 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:08:13,091 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:08:13,093 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:08:13,095 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:08:13,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:08:13,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:08:13,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:08:13,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:08:13,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:08:13,104 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:08:13,105 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:08:13,106 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:08:13,107 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:08:13,108 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:08:13,110 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:08:13,112 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:08:13,113 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:08:13,119 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:08:13,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:08:13,126 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:08:13,132 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:08:13,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:08:13,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:08:13,134 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:08:13,135 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:08:13,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:08:13,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:08:13,139 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:08:13,140 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:08:13,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:08:13,143 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:08:13,144 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:08:13,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:08:13,146 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:08:13,147 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:08:13,149 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:08:13,150 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:08:13,186 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:08:13,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:08:13,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:08:13,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:08:13,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:08:13,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:08:13,188 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:08:13,188 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:08:13,189 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:08:13,189 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:08:13,190 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:08:13,190 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:08:13,190 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:08:13,190 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:08:13,190 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:08:13,191 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:08:13,191 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:08:13,191 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:08:13,192 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:08:13,192 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:08:13,192 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:08:13,192 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:08:13,192 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:08:13,193 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:08:13,193 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:08:13,193 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:08:13,194 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:08:13,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:08:13,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:08:13,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:08:13,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:08:13,195 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:08:13,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:08:13,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:08:13,195 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:08:13,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:08:13,196 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:08:13,196 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:08:13,196 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:08:13,196 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:08:13,196 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:08:13,196 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_136bae09-9376-4dfc-9263-3f7117944a65/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2022-11-23 15:08:13,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:08:13,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:08:13,551 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:08:13,552 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:08:13,552 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:08:13,553 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-11-23 15:08:16,503 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:08:16,802 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:08:16,802 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2022-11-23 15:08:16,819 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/data/e8516ed27/8462a61f48324707bfe9c7471be0e44c/FLAG9aeb9c56e [2022-11-23 15:08:16,835 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/data/e8516ed27/8462a61f48324707bfe9c7471be0e44c [2022-11-23 15:08:16,837 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:08:16,839 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:08:16,840 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:08:16,841 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:08:16,844 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:08:16,845 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:08:16" (1/1) ... [2022-11-23 15:08:16,846 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f332a1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:16, skipping insertion in model container [2022-11-23 15:08:16,846 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:08:16" (1/1) ... [2022-11-23 15:08:16,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:08:16,891 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:08:17,134 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_136bae09-9376-4dfc-9263-3f7117944a65/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2022-11-23 15:08:17,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:08:17,238 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:08:17,275 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_136bae09-9376-4dfc-9263-3f7117944a65/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2022-11-23 15:08:17,310 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:08:17,326 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:08:17,327 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17 WrapperNode [2022-11-23 15:08:17,327 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:08:17,328 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:08:17,328 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:08:17,329 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:08:17,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,372 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 217 [2022-11-23 15:08:17,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:08:17,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:08:17,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:08:17,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:08:17,383 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,383 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,385 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,386 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,391 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,396 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,398 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:08:17,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:08:17,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:08:17,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:08:17,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (1/1) ... [2022-11-23 15:08:17,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:08:17,434 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:08:17,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:08:17,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:08:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:08:17,498 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:08:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:08:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:08:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:08:17,499 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 15:08:17,499 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 15:08:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:08:17,500 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:08:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:08:17,500 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:08:17,500 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:08:17,501 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:08:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:08:17,501 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:08:17,501 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-23 15:08:17,501 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-23 15:08:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-23 15:08:17,502 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-23 15:08:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:08:17,502 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:08:17,502 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:08:17,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:08:17,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:08:17,619 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:08:17,622 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:08:18,033 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:08:18,116 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:08:18,117 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:08:18,120 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:18 BoogieIcfgContainer [2022-11-23 15:08:18,120 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:08:18,122 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:08:18,123 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:08:18,126 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:08:18,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:08:16" (1/3) ... [2022-11-23 15:08:18,127 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f08ecfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:08:18, skipping insertion in model container [2022-11-23 15:08:18,127 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:08:17" (2/3) ... [2022-11-23 15:08:18,128 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f08ecfe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:08:18, skipping insertion in model container [2022-11-23 15:08:18,128 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:18" (3/3) ... [2022-11-23 15:08:18,130 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2022-11-23 15:08:18,149 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:08:18,149 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:08:18,202 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:08:18,209 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;@10e4c07c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:08:18,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:08:18,214 INFO L276 IsEmpty]: Start isEmpty. Operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2022-11-23 15:08:18,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-23 15:08:18,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:18,225 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:18,225 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:18,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:18,231 INFO L85 PathProgramCache]: Analyzing trace with hash -831846055, now seen corresponding path program 1 times [2022-11-23 15:08:18,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:18,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120489015] [2022-11-23 15:08:18,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:18,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:18,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:18,403 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 15:08:18,404 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:18,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120489015] [2022-11-23 15:08:18,405 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120489015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:18,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:18,406 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:08:18,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994494642] [2022-11-23 15:08:18,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:18,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:08:18,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:18,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:08:18,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:08:18,443 INFO L87 Difference]: Start difference. First operand has 79 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 59 states have internal predecessors, (68), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2022-11-23 15:08:18,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:18,511 INFO L93 Difference]: Finished difference Result 156 states and 213 transitions. [2022-11-23 15:08:18,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:08:18,514 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2022-11-23 15:08:18,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:18,524 INFO L225 Difference]: With dead ends: 156 [2022-11-23 15:08:18,524 INFO L226 Difference]: Without dead ends: 74 [2022-11-23 15:08:18,528 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 15:08:18,531 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:18,532 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 85 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:08:18,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-23 15:08:18,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-23 15:08:18,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 45 states have (on average 1.3333333333333333) internal successors, (60), 55 states have internal predecessors, (60), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-23 15:08:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 97 transitions. [2022-11-23 15:08:18,630 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 97 transitions. Word has length 16 [2022-11-23 15:08:18,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:18,631 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 97 transitions. [2022-11-23 15:08:18,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2022-11-23 15:08:18,631 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 97 transitions. [2022-11-23 15:08:18,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 15:08:18,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:18,634 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 15:08:18,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:08:18,635 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:18,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:18,636 INFO L85 PathProgramCache]: Analyzing trace with hash -335547087, now seen corresponding path program 1 times [2022-11-23 15:08:18,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:18,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844802482] [2022-11-23 15:08:18,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:18,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:18,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:18,761 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 15:08:18,761 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:18,762 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844802482] [2022-11-23 15:08:18,762 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844802482] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:18,762 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:18,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:08:18,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505033819] [2022-11-23 15:08:18,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:18,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:08:18,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:18,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:08:18,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:08:18,766 INFO L87 Difference]: Start difference. First operand 74 states and 97 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 15:08:18,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:18,812 INFO L93 Difference]: Finished difference Result 120 states and 156 transitions. [2022-11-23 15:08:18,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:08:18,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 15:08:18,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:18,814 INFO L225 Difference]: With dead ends: 120 [2022-11-23 15:08:18,814 INFO L226 Difference]: Without dead ends: 66 [2022-11-23 15:08:18,815 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 15:08:18,816 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 14 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:18,831 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 125 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:08:18,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-11-23 15:08:18,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2022-11-23 15:08:18,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 40 states have (on average 1.35) internal successors, (54), 50 states have internal predecessors, (54), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2022-11-23 15:08:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 86 transitions. [2022-11-23 15:08:18,842 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 86 transitions. Word has length 17 [2022-11-23 15:08:18,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:18,843 INFO L495 AbstractCegarLoop]: Abstraction has 66 states and 86 transitions. [2022-11-23 15:08:18,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 15:08:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 86 transitions. [2022-11-23 15:08:18,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 15:08:18,848 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:18,849 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] [2022-11-23 15:08:18,849 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:08:18,849 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:18,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:18,850 INFO L85 PathProgramCache]: Analyzing trace with hash -963223982, now seen corresponding path program 1 times [2022-11-23 15:08:18,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:18,850 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535379160] [2022-11-23 15:08:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:18,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:18,994 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 15:08:18,996 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:18,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535379160] [2022-11-23 15:08:18,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535379160] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:18,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:18,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:08:18,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638552313] [2022-11-23 15:08:18,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:18,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:08:18,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:19,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:08:19,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:08:19,001 INFO L87 Difference]: Start difference. First operand 66 states and 86 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 15:08:19,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:19,120 INFO L93 Difference]: Finished difference Result 194 states and 255 transitions. [2022-11-23 15:08:19,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:08:19,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2022-11-23 15:08:19,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:19,125 INFO L225 Difference]: With dead ends: 194 [2022-11-23 15:08:19,125 INFO L226 Difference]: Without dead ends: 130 [2022-11-23 15:08:19,126 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 15:08:19,127 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 73 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:19,128 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 164 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:08:19,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-11-23 15:08:19,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 127. [2022-11-23 15:08:19,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 76 states have (on average 1.355263157894737) internal successors, (103), 95 states have internal predecessors, (103), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2022-11-23 15:08:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 167 transitions. [2022-11-23 15:08:19,169 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 167 transitions. Word has length 20 [2022-11-23 15:08:19,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:19,169 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 167 transitions. [2022-11-23 15:08:19,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 15:08:19,170 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 167 transitions. [2022-11-23 15:08:19,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-11-23 15:08:19,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:19,171 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] [2022-11-23 15:08:19,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:08:19,172 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:19,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:19,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1867410973, now seen corresponding path program 1 times [2022-11-23 15:08:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:19,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481371429] [2022-11-23 15:08:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:19,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:19,284 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 15:08:19,285 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:19,285 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481371429] [2022-11-23 15:08:19,285 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481371429] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:19,285 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:19,286 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:08:19,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672861112] [2022-11-23 15:08:19,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:19,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:08:19,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:19,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:08:19,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:08:19,287 INFO L87 Difference]: Start difference. First operand 127 states and 167 transitions. Second operand has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 15:08:19,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:19,476 INFO L93 Difference]: Finished difference Result 375 states and 498 transitions. [2022-11-23 15:08:19,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:08:19,477 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 23 [2022-11-23 15:08:19,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:19,480 INFO L225 Difference]: With dead ends: 375 [2022-11-23 15:08:19,480 INFO L226 Difference]: Without dead ends: 250 [2022-11-23 15:08:19,482 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 [2022-11-23 15:08:19,483 INFO L413 NwaCegarLoop]: 85 mSDtfsCounter, 64 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:19,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 373 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:08:19,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2022-11-23 15:08:19,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 242. [2022-11-23 15:08:19,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 242 states, 145 states have (on average 1.3448275862068966) internal successors, (195), 180 states have internal predecessors, (195), 62 states have call successors, (62), 34 states have call predecessors, (62), 34 states have return successors, (62), 40 states have call predecessors, (62), 62 states have call successors, (62) [2022-11-23 15:08:19,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 242 states to 242 states and 319 transitions. [2022-11-23 15:08:19,518 INFO L78 Accepts]: Start accepts. Automaton has 242 states and 319 transitions. Word has length 23 [2022-11-23 15:08:19,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:19,519 INFO L495 AbstractCegarLoop]: Abstraction has 242 states and 319 transitions. [2022-11-23 15:08:19,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.0) internal successors, (20), 4 states have internal predecessors, (20), 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 15:08:19,519 INFO L276 IsEmpty]: Start isEmpty. Operand 242 states and 319 transitions. [2022-11-23 15:08:19,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-23 15:08:19,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:19,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:19,522 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:08:19,522 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:19,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:19,523 INFO L85 PathProgramCache]: Analyzing trace with hash 2051363639, now seen corresponding path program 1 times [2022-11-23 15:08:19,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:19,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397151155] [2022-11-23 15:08:19,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:19,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:19,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:19,719 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 15:08:19,719 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:19,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397151155] [2022-11-23 15:08:19,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397151155] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:19,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:19,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:08:19,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424623567] [2022-11-23 15:08:19,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:19,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:08:19,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:19,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:08:19,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:08:19,728 INFO L87 Difference]: Start difference. First operand 242 states and 319 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-23 15:08:19,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:19,888 INFO L93 Difference]: Finished difference Result 654 states and 882 transitions. [2022-11-23 15:08:19,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 15:08:19,889 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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 26 [2022-11-23 15:08:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:19,896 INFO L225 Difference]: With dead ends: 654 [2022-11-23 15:08:19,896 INFO L226 Difference]: Without dead ends: 414 [2022-11-23 15:08:19,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 15:08:19,911 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 49 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:19,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 211 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:08:19,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2022-11-23 15:08:19,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 404. [2022-11-23 15:08:19,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 259 states have (on average 1.2702702702702702) internal successors, (329), 288 states have internal predecessors, (329), 80 states have call successors, (80), 64 states have call predecessors, (80), 64 states have return successors, (104), 70 states have call predecessors, (104), 80 states have call successors, (104) [2022-11-23 15:08:19,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 513 transitions. [2022-11-23 15:08:19,972 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 513 transitions. Word has length 26 [2022-11-23 15:08:19,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:19,973 INFO L495 AbstractCegarLoop]: Abstraction has 404 states and 513 transitions. [2022-11-23 15:08:19,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 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) [2022-11-23 15:08:19,973 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 513 transitions. [2022-11-23 15:08:19,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-23 15:08:19,976 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:19,976 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:19,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:08:19,976 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:19,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:19,977 INFO L85 PathProgramCache]: Analyzing trace with hash -288960498, now seen corresponding path program 1 times [2022-11-23 15:08:19,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:19,978 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106725320] [2022-11-23 15:08:19,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:19,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:19,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:20,323 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:08:20,323 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:20,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106725320] [2022-11-23 15:08:20,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106725320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:20,324 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:20,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:08:20,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015971681] [2022-11-23 15:08:20,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:20,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:08:20,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:20,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:08:20,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:08:20,326 INFO L87 Difference]: Start difference. First operand 404 states and 513 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 15:08:20,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:20,613 INFO L93 Difference]: Finished difference Result 1142 states and 1451 transitions. [2022-11-23 15:08:20,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:08:20,613 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 44 [2022-11-23 15:08:20,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:20,619 INFO L225 Difference]: With dead ends: 1142 [2022-11-23 15:08:20,619 INFO L226 Difference]: Without dead ends: 740 [2022-11-23 15:08:20,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:08:20,631 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 126 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:20,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 303 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:08:20,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 740 states. [2022-11-23 15:08:20,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 740 to 664. [2022-11-23 15:08:20,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 443 states have (on average 1.252821670428894) internal successors, (555), 474 states have internal predecessors, (555), 110 states have call successors, (110), 98 states have call predecessors, (110), 110 states have return successors, (146), 110 states have call predecessors, (146), 110 states have call successors, (146) [2022-11-23 15:08:20,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 811 transitions. [2022-11-23 15:08:20,723 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 811 transitions. Word has length 44 [2022-11-23 15:08:20,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:20,723 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 811 transitions. [2022-11-23 15:08:20,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 6 states have internal predecessors, (30), 5 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-11-23 15:08:20,724 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 811 transitions. [2022-11-23 15:08:20,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:08:20,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:20,729 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:20,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 15:08:20,729 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:20,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:20,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1730431963, now seen corresponding path program 1 times [2022-11-23 15:08:20,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:20,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962355078] [2022-11-23 15:08:20,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:20,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:21,229 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:08:21,230 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:21,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962355078] [2022-11-23 15:08:21,230 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962355078] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:08:21,230 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [394660291] [2022-11-23 15:08:21,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:21,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:08:21,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:08:21,234 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:08:21,243 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:08:21,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:21,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-23 15:08:21,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:08:21,765 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:08:21,765 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:08:22,559 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:08:22,559 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [394660291] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:08:22,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1902075177] [2022-11-23 15:08:22,581 INFO L159 IcfgInterpreter]: Started Sifa with 46 locations of interest [2022-11-23 15:08:22,582 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:08:22,587 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:08:22,592 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:08:22,593 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:08:24,045 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 114 for LOIs [2022-11-23 15:08:24,059 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 136 for LOIs [2022-11-23 15:08:24,701 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 131 for LOIs [2022-11-23 15:08:25,192 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 131 for LOIs [2022-11-23 15:08:25,825 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 132 for LOIs [2022-11-23 15:08:26,172 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 44 for LOIs [2022-11-23 15:08:26,179 INFO L197 IcfgInterpreter]: Interpreting procedure changeMethaneLevel with input of size 112 for LOIs [2022-11-23 15:08:26,191 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:08:41,975 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '6762#(and (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 0)) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1|) (<= ~methaneLevelCritical~0 1) (<= ~pumpRunning~0 1) (not (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| ~methaneLevelCritical~0) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~1#1|) (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~1#1|) (<= 2 |old(~waterLevel~0)|) (<= 0 ~methaneLevelCritical~0) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:08:41,976 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:08:41,976 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:08:41,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12, 12] total 31 [2022-11-23 15:08:41,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540918113] [2022-11-23 15:08:41,976 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:08:41,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-23 15:08:41,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:41,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-23 15:08:41,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=441, Invalid=3341, Unknown=0, NotChecked=0, Total=3782 [2022-11-23 15:08:41,979 INFO L87 Difference]: Start difference. First operand 664 states and 811 transitions. Second operand has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-23 15:08:50,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:50,712 INFO L93 Difference]: Finished difference Result 2754 states and 3749 transitions. [2022-11-23 15:08:50,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-11-23 15:08:50,718 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) Word has length 47 [2022-11-23 15:08:50,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:50,729 INFO L225 Difference]: With dead ends: 2754 [2022-11-23 15:08:50,730 INFO L226 Difference]: Without dead ends: 1951 [2022-11-23 15:08:50,740 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 280 GetRequests, 111 SyntacticMatches, 7 SemanticMatches, 162 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10261 ImplicationChecksByTransitivity, 21.0s TimeCoverageRelationStatistics Valid=2711, Invalid=24021, Unknown=0, NotChecked=0, Total=26732 [2022-11-23 15:08:50,742 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 1535 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 5387 mSolverCounterSat, 1015 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1540 SdHoareTripleChecker+Valid, 1462 SdHoareTripleChecker+Invalid, 6402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1015 IncrementalHoareTripleChecker+Valid, 5387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:50,742 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1540 Valid, 1462 Invalid, 6402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1015 Valid, 5387 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-11-23 15:08:50,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1951 states. [2022-11-23 15:08:50,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1951 to 1283. [2022-11-23 15:08:50,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1283 states, 864 states have (on average 1.2141203703703705) internal successors, (1049), 915 states have internal predecessors, (1049), 203 states have call successors, (203), 172 states have call predecessors, (203), 215 states have return successors, (281), 225 states have call predecessors, (281), 203 states have call successors, (281) [2022-11-23 15:08:50,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1533 transitions. [2022-11-23 15:08:50,896 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1533 transitions. Word has length 47 [2022-11-23 15:08:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:50,897 INFO L495 AbstractCegarLoop]: Abstraction has 1283 states and 1533 transitions. [2022-11-23 15:08:50,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 22 states have (on average 3.227272727272727) internal successors, (71), 22 states have internal predecessors, (71), 8 states have call successors, (18), 6 states have call predecessors, (18), 13 states have return successors, (19), 15 states have call predecessors, (19), 7 states have call successors, (19) [2022-11-23 15:08:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1533 transitions. [2022-11-23 15:08:50,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-11-23 15:08:50,905 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:50,905 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:50,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:08:51,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-23 15:08:51,117 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:51,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:51,118 INFO L85 PathProgramCache]: Analyzing trace with hash 85530319, now seen corresponding path program 1 times [2022-11-23 15:08:51,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:51,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554642314] [2022-11-23 15:08:51,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:51,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:51,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:51,360 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-11-23 15:08:51,360 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:51,361 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554642314] [2022-11-23 15:08:51,361 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554642314] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:51,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:51,362 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-23 15:08:51,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1402030722] [2022-11-23 15:08:51,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:51,363 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-23 15:08:51,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:51,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-23 15:08:51,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-11-23 15:08:51,364 INFO L87 Difference]: Start difference. First operand 1283 states and 1533 transitions. Second operand has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 15:08:51,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:51,861 INFO L93 Difference]: Finished difference Result 2590 states and 3171 transitions. [2022-11-23 15:08:51,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-23 15:08:51,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) Word has length 90 [2022-11-23 15:08:51,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:51,870 INFO L225 Difference]: With dead ends: 2590 [2022-11-23 15:08:51,871 INFO L226 Difference]: Without dead ends: 1572 [2022-11-23 15:08:51,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2022-11-23 15:08:51,877 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 85 mSDsluCounter, 443 mSDsCounter, 0 mSdLazyCounter, 414 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 526 SdHoareTripleChecker+Invalid, 422 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 414 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:51,878 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 526 Invalid, 422 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 414 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 15:08:51,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1572 states. [2022-11-23 15:08:52,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1572 to 1532. [2022-11-23 15:08:52,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 1033 states have (on average 1.2042594385285577) internal successors, (1244), 1092 states have internal predecessors, (1244), 242 states have call successors, (242), 210 states have call predecessors, (242), 256 states have return successors, (329), 263 states have call predecessors, (329), 242 states have call successors, (329) [2022-11-23 15:08:52,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1815 transitions. [2022-11-23 15:08:52,020 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1815 transitions. Word has length 90 [2022-11-23 15:08:52,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:52,021 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1815 transitions. [2022-11-23 15:08:52,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (13), 1 states have call predecessors, (13), 3 states have return successors, (14), 5 states have call predecessors, (14), 2 states have call successors, (14) [2022-11-23 15:08:52,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1815 transitions. [2022-11-23 15:08:52,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2022-11-23 15:08:52,025 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:08:52,025 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:52,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 15:08:52,026 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:08:52,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:08:52,026 INFO L85 PathProgramCache]: Analyzing trace with hash -666994552, now seen corresponding path program 1 times [2022-11-23 15:08:52,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:08:52,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416269840] [2022-11-23 15:08:52,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:08:52,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:08:52,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:08:52,093 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-11-23 15:08:52,093 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:08:52,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416269840] [2022-11-23 15:08:52,094 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416269840] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:08:52,094 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:08:52,094 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 15:08:52,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094833457] [2022-11-23 15:08:52,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:08:52,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 15:08:52,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:08:52,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 15:08:52,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 15:08:52,097 INFO L87 Difference]: Start difference. First operand 1532 states and 1815 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-23 15:08:52,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:08:52,317 INFO L93 Difference]: Finished difference Result 1726 states and 2060 transitions. [2022-11-23 15:08:52,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-23 15:08:52,318 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) Word has length 89 [2022-11-23 15:08:52,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:08:52,318 INFO L225 Difference]: With dead ends: 1726 [2022-11-23 15:08:52,319 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:08:52,322 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 15:08:52,322 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 95 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:08:52,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 142 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:08:52,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:08:52,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:08:52,324 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 15:08:52,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:08:52,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 89 [2022-11-23 15:08:52,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:08:52,325 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:08:52,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 4 states have call successors, (12) [2022-11-23 15:08:52,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:08:52,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:08:52,328 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:08:52,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-23 15:08:52,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:08:59,337 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 199 206) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (= 0 ~systemActive~0) (= ~waterLevel~0 1)) (or .cse0 (not (= 1 ~systemActive~0))))) [2022-11-23 15:08:59,337 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 199 206) no Hoare annotation was computed. [2022-11-23 15:08:59,337 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 89 95) no Hoare annotation was computed. [2022-11-23 15:08:59,338 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 89 95) the Hoare annotation is: true [2022-11-23 15:08:59,338 INFO L895 garLoopResultBuilder]: At program point L137(line 137) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 15:08:59,340 INFO L895 garLoopResultBuilder]: At program point L133(line 133) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 15:08:59,340 INFO L899 garLoopResultBuilder]: For program point L131(lines 131 139) no Hoare annotation was computed. [2022-11-23 15:08:59,343 INFO L895 garLoopResultBuilder]: At program point L127(lines 127 144) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:08:59,346 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 123 147) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:08:59,347 INFO L895 garLoopResultBuilder]: At program point L142(line 142) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse1 .cse0))) [2022-11-23 15:08:59,347 INFO L899 garLoopResultBuilder]: For program point L142-1(lines 123 147) no Hoare annotation was computed. [2022-11-23 15:08:59,347 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 123 147) no Hoare annotation was computed. [2022-11-23 15:08:59,348 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 914 925) the Hoare annotation is: (let ((.cse0 (= |old(~methaneLevelCritical~0)| ~methaneLevelCritical~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (= 0 ~systemActive~0))) (or (not (= 1 ~systemActive~0)) .cse0))) [2022-11-23 15:08:59,348 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 914 925) no Hoare annotation was computed. [2022-11-23 15:08:59,348 INFO L902 garLoopResultBuilder]: At program point L769(line 769) the Hoare annotation is: true [2022-11-23 15:08:59,349 INFO L899 garLoopResultBuilder]: For program point L769-1(line 769) no Hoare annotation was computed. [2022-11-23 15:08:59,353 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 763 792) no Hoare annotation was computed. [2022-11-23 15:08:59,353 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 763 792) the Hoare annotation is: true [2022-11-23 15:08:59,353 INFO L902 garLoopResultBuilder]: At program point L788(lines 763 792) the Hoare annotation is: true [2022-11-23 15:08:59,353 INFO L899 garLoopResultBuilder]: For program point L784(line 784) no Hoare annotation was computed. [2022-11-23 15:08:59,353 INFO L899 garLoopResultBuilder]: For program point L777(lines 777 781) no Hoare annotation was computed. [2022-11-23 15:08:59,353 INFO L902 garLoopResultBuilder]: At program point L777-1(lines 777 781) the Hoare annotation is: true [2022-11-23 15:08:59,354 INFO L902 garLoopResultBuilder]: At program point L773-2(lines 773 787) the Hoare annotation is: true [2022-11-23 15:08:59,354 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 926 934) the Hoare annotation is: true [2022-11-23 15:08:59,354 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 926 934) no Hoare annotation was computed. [2022-11-23 15:08:59,354 INFO L895 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0))) (or .cse1 .cse0) (or .cse0 (not (= ~methaneLevelCritical~0 0))) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 15:08:59,354 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 15:08:59,355 INFO L899 garLoopResultBuilder]: For program point L155-1(line 155) no Hoare annotation was computed. [2022-11-23 15:08:59,355 INFO L895 garLoopResultBuilder]: At program point L168(line 168) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (= ~waterLevel~0 1)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0))))) [2022-11-23 15:08:59,355 INFO L895 garLoopResultBuilder]: At program point L168-1(lines 149 173) the Hoare annotation is: (let ((.cse4 (= ~waterLevel~0 1)) (.cse1 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse6 (not (= |old(~pumpRunning~0)| 0)))) (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse3 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse5 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) .cse2 (and .cse3 .cse0) (and (not .cse4) .cse5 (= ~pumpRunning~0 1)) (and .cse3 .cse1 .cse5))) (or .cse6 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse4) (or .cse1 .cse2 (not (= |old(~pumpRunning~0)| 1))) (or .cse6 (not (= 0 ~systemActive~0))))) [2022-11-23 15:08:59,356 INFO L895 garLoopResultBuilder]: At program point L391(line 391) the Hoare annotation is: (and (not (= 1 ~systemActive~0)) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 0 ~systemActive~0)))) [2022-11-23 15:08:59,356 INFO L899 garLoopResultBuilder]: For program point L69-1(lines 68 87) no Hoare annotation was computed. [2022-11-23 15:08:59,356 INFO L895 garLoopResultBuilder]: At program point L867(line 867) the Hoare annotation is: (let ((.cse2 (not (= 0 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (not (= |old(~waterLevel~0)| 1))) (.cse4 (= ~waterLevel~0 1)) (.cse5 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse6 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse4 .cse2) (let ((.cse7 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse8 (= ~methaneLevelCritical~0 0))) (or (and .cse1 .cse5) .cse6 (and .cse7 .cse1) (and (not .cse4) .cse8 (= ~pumpRunning~0 1)) (and .cse7 .cse5 .cse8))) (or .cse0 .cse3 .cse6 .cse4) (or .cse5 .cse6 (not (= |old(~pumpRunning~0)| 1))))) [2022-11-23 15:08:59,356 INFO L899 garLoopResultBuilder]: For program point L867-1(line 867) no Hoare annotation was computed. [2022-11-23 15:08:59,356 INFO L899 garLoopResultBuilder]: For program point L157(lines 157 165) no Hoare annotation was computed. [2022-11-23 15:08:59,357 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 170) no Hoare annotation was computed. [2022-11-23 15:08:59,357 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 65 88) the Hoare annotation is: (let ((.cse1 (not (= 0 ~systemActive~0))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse4 (not (= 1 ~systemActive~0))) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1) (or .cse0 .cse2 .cse3 .cse1) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4) (or .cse0 .cse2 .cse4 .cse3))) [2022-11-23 15:08:59,357 INFO L899 garLoopResultBuilder]: For program point L76-1(lines 76 82) no Hoare annotation was computed. [2022-11-23 15:08:59,357 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 65 88) no Hoare annotation was computed. [2022-11-23 15:08:59,357 INFO L899 garLoopResultBuilder]: For program point L873(lines 873 879) no Hoare annotation was computed. [2022-11-23 15:08:59,357 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 391) no Hoare annotation was computed. [2022-11-23 15:08:59,358 INFO L895 garLoopResultBuilder]: At program point L869(lines 869 882) the Hoare annotation is: (let ((.cse0 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (.cse10 (= ~methaneLevelCritical~0 0))) (let ((.cse2 (not .cse10)) (.cse4 (= ~pumpRunning~0 0)) (.cse11 (not .cse0)) (.cse5 (not (= 0 ~systemActive~0))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse6 (not (= |old(~waterLevel~0)| 1))) (.cse7 (= ~waterLevel~0 1)) (.cse8 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse5) (or .cse3 .cse0 .cse2 .cse5) (or .cse3 .cse6 .cse7 .cse5) (let ((.cse9 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (or (and .cse4 .cse8) .cse1 (and .cse9 .cse4) (and (not .cse7) .cse10 (= ~pumpRunning~0 1)) (and .cse9 .cse8 .cse10))) (or .cse3 .cse11 .cse10 .cse1) (or .cse3 .cse11 .cse10 .cse5) (or .cse3 .cse6 .cse1 .cse7) (or .cse8 .cse1 (not (= |old(~pumpRunning~0)| 1)))))) [2022-11-23 15:08:59,358 INFO L895 garLoopResultBuilder]: At program point L869-1(lines 861 885) the Hoare annotation is: (let ((.cse13 (= |timeShift___utac_acc__Specification1_spec__1_~tmp~11#1| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (let ((.cse12 (not .cse1)) (.cse8 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not (= |old(~waterLevel~0)| 1))) (.cse10 (= ~waterLevel~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse3 (< 0 (+ |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 1))) (.cse6 (= ~pumpRunning~0 0)) (.cse4 (not .cse13)) (.cse5 (<= |timeShift___utac_acc__Specification1_spec__1_~tmp___0~3#1| 0)) (.cse11 (not (= 0 ~systemActive~0))) (.cse7 (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 (and .cse3 .cse4 .cse5)) (or (and .cse6 .cse7) .cse1 .cse2 (and .cse8 .cse6)) (or .cse0 .cse9 .cse10 .cse11) (or .cse0 .cse12 (and .cse6 .cse13) .cse11) (or (and .cse8 .cse7 .cse13) .cse2 .cse12 (and (not .cse10) .cse13 (= ~pumpRunning~0 1)) (and .cse8 .cse6 .cse13) (and .cse6 .cse7 .cse13)) (or .cse0 .cse9 .cse2 .cse10) (or .cse0 (and .cse3 .cse6 .cse4 .cse5) .cse1 .cse11) (or .cse7 .cse2 (not (= |old(~pumpRunning~0)| 1)))))) [2022-11-23 15:08:59,358 INFO L895 garLoopResultBuilder]: At program point L163(line 163) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_processEnvironment_~tmp~2#1| ~methaneLevelCritical~0) (= ~methaneLevelCritical~0 0))) (or .cse1 .cse0) (or .cse1 (not (= 0 ~systemActive~0))))) [2022-11-23 15:08:59,359 INFO L895 garLoopResultBuilder]: At program point L378(lines 329 379) the Hoare annotation is: false [2022-11-23 15:08:59,359 INFO L899 garLoopResultBuilder]: For program point L366(lines 366 372) no Hoare annotation was computed. [2022-11-23 15:08:59,359 INFO L895 garLoopResultBuilder]: At program point L366-2(lines 360 373) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-23 15:08:59,359 INFO L899 garLoopResultBuilder]: For program point L350(lines 350 356) no Hoare annotation was computed. [2022-11-23 15:08:59,359 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:08:59,359 INFO L899 garLoopResultBuilder]: For program point L350-1(lines 350 356) no Hoare annotation was computed. [2022-11-23 15:08:59,360 INFO L895 garLoopResultBuilder]: At program point L375(lines 330 377) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2022-11-23 15:08:59,360 INFO L895 garLoopResultBuilder]: At program point L342(line 342) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2) (and .cse0 .cse2 (= 0 ~systemActive~0)) (and (= ~methaneLevelCritical~0 0) .cse1 .cse2))) [2022-11-23 15:08:59,360 INFO L899 garLoopResultBuilder]: For program point L305(lines 305 311) no Hoare annotation was computed. [2022-11-23 15:08:59,360 INFO L895 garLoopResultBuilder]: At program point L305-1(lines 305 311) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-23 15:08:59,360 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:08:59,361 INFO L895 garLoopResultBuilder]: At program point L847(lines 847 854) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 15:08:59,361 INFO L902 garLoopResultBuilder]: At program point L847-2(lines 847 854) the Hoare annotation is: true [2022-11-23 15:08:59,361 INFO L899 garLoopResultBuilder]: For program point L331(lines 330 377) no Hoare annotation was computed. [2022-11-23 15:08:59,361 INFO L899 garLoopResultBuilder]: For program point L360(lines 360 373) no Hoare annotation was computed. [2022-11-23 15:08:59,361 INFO L895 garLoopResultBuilder]: At program point L352(line 352) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (= 1 ~systemActive~0) .cse0) (and (= ~pumpRunning~0 0) .cse0 (= 0 ~systemActive~0)))) [2022-11-23 15:08:59,362 INFO L902 garLoopResultBuilder]: At program point L381(lines 320 385) the Hoare annotation is: true [2022-11-23 15:08:59,362 INFO L899 garLoopResultBuilder]: For program point L340(lines 340 346) no Hoare annotation was computed. [2022-11-23 15:08:59,362 INFO L899 garLoopResultBuilder]: For program point L340-1(lines 340 346) no Hoare annotation was computed. [2022-11-23 15:08:59,362 INFO L895 garLoopResultBuilder]: At program point L307(line 307) the Hoare annotation is: (let ((.cse6 (= |isMethaneLevelCritical_#res| 0)) (.cse8 (not (= ~pumpRunning~0 0))) (.cse5 (= ~methaneLevelCritical~0 0))) (let ((.cse1 (or .cse8 .cse5 (not (= |isMethaneAlarm_#t~ret8| 0)))) (.cse2 (or .cse8 .cse5 (not (= |isMethaneAlarm_#res| 0)))) (.cse4 (or .cse8 .cse5 (not .cse6))) (.cse0 (not (= ~waterLevel~0 1))) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse7 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (or (and (<= ~pumpRunning~0 0) (< 0 (+ ~pumpRunning~0 1))) (not .cse5) .cse6) .cse7) (and .cse1 .cse2 (= 1 ~systemActive~0) .cse3 .cse4) (and .cse0 .cse3 .cse7 (= ~pumpRunning~0 1))))) [2022-11-23 15:08:59,362 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 97 121) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:08:59,363 INFO L895 garLoopResultBuilder]: At program point L116(line 116) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-23 15:08:59,363 INFO L899 garLoopResultBuilder]: For program point L116-1(lines 97 121) no Hoare annotation was computed. [2022-11-23 15:08:59,363 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 97 121) no Hoare annotation was computed. [2022-11-23 15:08:59,363 INFO L895 garLoopResultBuilder]: At program point L187(line 187) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= ~waterLevel~0 1)) .cse2 .cse0) (or .cse2 .cse1 .cse0))) [2022-11-23 15:08:59,363 INFO L895 garLoopResultBuilder]: At program point L187-1(line 187) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (not (= ~waterLevel~0 1)) .cse1 (= |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret7#1| ~methaneLevelCritical~0))))) [2022-11-23 15:08:59,364 INFO L895 garLoopResultBuilder]: At program point L111(line 111) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (not (= ~methaneLevelCritical~0 0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse1)) (or (not (= ~waterLevel~0 1)) .cse2 .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0)) (or .cse2 .cse1 .cse0))) [2022-11-23 15:08:59,364 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 113) no Hoare annotation was computed. [2022-11-23 15:08:59,364 INFO L895 garLoopResultBuilder]: At program point L101(lines 101 118) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0 (not (= ~methaneLevelCritical~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) .cse0))) [2022-11-23 15:08:59,364 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 902 913) no Hoare annotation was computed. [2022-11-23 15:08:59,364 INFO L902 garLoopResultBuilder]: At program point waterRiseENTRY(lines 902 913) the Hoare annotation is: true [2022-11-23 15:08:59,365 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 207 217) the Hoare annotation is: true [2022-11-23 15:08:59,365 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 207 217) no Hoare annotation was computed. [2022-11-23 15:08:59,365 INFO L902 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: true [2022-11-23 15:08:59,365 INFO L899 garLoopResultBuilder]: For program point L212-1(line 212) no Hoare annotation was computed. [2022-11-23 15:08:59,368 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:08:59,370 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:08:59,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:08:59 BoogieIcfgContainer [2022-11-23 15:08:59,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:08:59,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:08:59,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:08:59,393 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:08:59,393 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:08:18" (3/4) ... [2022-11-23 15:08:59,396 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:08:59,401 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-23 15:08:59,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:08:59,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:08:59,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:08:59,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 15:08:59,402 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:08:59,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 15:08:59,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:08:59,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-23 15:08:59,403 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-23 15:08:59,410 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-11-23 15:08:59,410 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2022-11-23 15:08:59,411 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:08:59,411 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:08:59,412 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:08:59,437 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) [2022-11-23 15:08:59,438 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 15:08:59,439 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-23 15:08:59,439 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) [2022-11-23 15:08:59,439 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) [2022-11-23 15:08:59,439 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || methaneLevelCritical == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && tmp == 0)) || !(0 == systemActive))) && (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((!(waterLevel == 1) && tmp == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || (((0 < tmp___0 + 1 && pumpRunning == 0) && !(tmp == 0)) && tmp___0 <= 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) [2022-11-23 15:08:59,440 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && pumpRunning == 0) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) [2022-11-23 15:08:59,441 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) [2022-11-23 15:08:59,489 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:08:59,490 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:08:59,492 INFO L158 Benchmark]: Toolchain (without parser) took 42652.75ms. Allocated memory was 163.6MB in the beginning and 346.0MB in the end (delta: 182.5MB). Free memory was 132.4MB in the beginning and 186.3MB in the end (delta: -53.9MB). Peak memory consumption was 129.9MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,492 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:08:59,492 INFO L158 Benchmark]: CACSL2BoogieTranslator took 487.16ms. Allocated memory is still 163.6MB. Free memory was 131.8MB in the beginning and 113.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.12ms. Allocated memory is still 163.6MB. Free memory was 113.0MB in the beginning and 110.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,494 INFO L158 Benchmark]: Boogie Preprocessor took 41.92ms. Allocated memory is still 163.6MB. Free memory was 110.6MB in the beginning and 108.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,495 INFO L158 Benchmark]: RCFGBuilder took 704.75ms. Allocated memory is still 163.6MB. Free memory was 108.8MB in the beginning and 82.2MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,495 INFO L158 Benchmark]: TraceAbstraction took 41269.61ms. Allocated memory was 163.6MB in the beginning and 346.0MB in the end (delta: 182.5MB). Free memory was 81.6MB in the beginning and 192.6MB in the end (delta: -111.0MB). Peak memory consumption was 167.6MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,496 INFO L158 Benchmark]: Witness Printer took 98.56ms. Allocated memory is still 346.0MB. Free memory was 191.5MB in the beginning and 186.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 15:08:59,498 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory is still 71.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 487.16ms. Allocated memory is still 163.6MB. Free memory was 131.8MB in the beginning and 113.0MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.12ms. Allocated memory is still 163.6MB. Free memory was 113.0MB in the beginning and 110.6MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.92ms. Allocated memory is still 163.6MB. Free memory was 110.6MB in the beginning and 108.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 704.75ms. Allocated memory is still 163.6MB. Free memory was 108.8MB in the beginning and 82.2MB in the end (delta: 26.6MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * TraceAbstraction took 41269.61ms. Allocated memory was 163.6MB in the beginning and 346.0MB in the end (delta: 182.5MB). Free memory was 81.6MB in the beginning and 192.6MB in the end (delta: -111.0MB). Peak memory consumption was 167.6MB. Max. memory is 16.1GB. * Witness Printer took 98.56ms. Allocated memory is still 346.0MB. Free memory was 191.5MB in the beginning and 186.3MB 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: 391]: 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 11 procedures, 79 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 41.2s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2061 SdHoareTripleChecker+Valid, 4.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2041 mSDsluCounter, 3391 SdHoareTripleChecker+Invalid, 3.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2591 mSDsCounter, 1066 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6299 IncrementalHoareTripleChecker+Invalid, 7365 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1066 mSolverCounterUnsat, 800 mSDtfsCounter, 6299 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 337 GetRequests, 131 SyntacticMatches, 7 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10307 ImplicationChecksByTransitivity, 21.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1532occurred in iteration=8, InterpolantAutomatonStates: 159, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 805 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 44 LocationsWithAnnotation, 2330 PreInvPairs, 2596 NumberOfFragments, 1339 HoareAnnotationTreeSize, 2330 FomulaSimplifications, 7897 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 44 FomulaSimplificationsInter, 33147 FormulaSimplificationTreeSizeReductionInter, 5.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.8s InterpolantComputationTime, 419 NumberOfCodeBlocks, 419 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 455 ConstructedInterpolants, 0 QuantifiedInterpolants, 1322 SizeOfPredicates, 11 NumberOfNonLiveVariables, 229 ConjunctsInSsa, 33 ConjunctsInUnsatCore, 11 InterpolantComputations, 8 PerfectInterpolantSequences, 103/107 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: 149]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 869]: Loop Invariant Derived loop invariant: (((((((((tmp == 0 || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || tmp == 0) || !(methaneLevelCritical == 0)) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((((pumpRunning == 0 && tmp == methaneLevelCritical) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) || ((!(waterLevel == 1) && methaneLevelCritical == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && methaneLevelCritical == 0))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(tmp == 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(0 == systemActive)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (pumpRunning == \old(pumpRunning) || !(1 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1) - InvariantResult [Line: 305]: Loop Invariant Derived loop invariant: pumpRunning == 0 && splverifierCounter == 0 - InvariantResult [Line: 391]: Loop Invariant Derived loop invariant: !(1 == systemActive) && (!(\old(pumpRunning) == 0) || !(0 == systemActive)) - InvariantResult [Line: 101]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) && ((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) - InvariantResult [Line: 861]: Loop Invariant Derived loop invariant: (((((((((!(\old(pumpRunning) == 0) || methaneLevelCritical == 0) || !(1 == systemActive)) || ((0 < tmp___0 + 1 && !(tmp == 0)) && tmp___0 <= 0)) && ((((pumpRunning == 0 && tmp == methaneLevelCritical) || methaneLevelCritical == 0) || !(1 == systemActive)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || waterLevel == 1) || !(0 == systemActive))) && (((!(\old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || (pumpRunning == 0 && tmp == 0)) || !(0 == systemActive))) && (((((((pumpRunning == \old(pumpRunning) && tmp == methaneLevelCritical) && tmp == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) || ((!(waterLevel == 1) && tmp == 0) && pumpRunning == 1)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && tmp == 0)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && tmp == 0))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || waterLevel == 1)) && (((!(\old(pumpRunning) == 0) || (((0 < tmp___0 + 1 && pumpRunning == 0) && !(tmp == 0)) && tmp___0 <= 0)) || methaneLevelCritical == 0) || !(0 == systemActive))) && ((tmp == methaneLevelCritical || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) - InvariantResult [Line: 187]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(methaneLevelCritical == 0)) || (pumpRunning == \old(pumpRunning) && pumpRunning == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((!(waterLevel == 1) && pumpRunning == 0) && aux-isMethaneAlarm()-aux == methaneLevelCritical)) - InvariantResult [Line: 847]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 329]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 330]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) || ((pumpRunning == 0 && splverifierCounter == 0) && 0 == systemActive)) || ((methaneLevelCritical == 0 && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 320]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:08:59,554 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_136bae09-9376-4dfc-9263-3f7117944a65/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