./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5e519f3a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-5e519f3 [2022-11-03 01:49:07,054 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-03 01:49:07,061 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-03 01:49:07,106 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-03 01:49:07,108 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-03 01:49:07,112 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-03 01:49:07,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-03 01:49:07,119 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-03 01:49:07,124 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-03 01:49:07,126 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-03 01:49:07,127 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-03 01:49:07,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-03 01:49:07,132 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-03 01:49:07,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-03 01:49:07,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-03 01:49:07,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-03 01:49:07,142 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-03 01:49:07,148 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-03 01:49:07,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-03 01:49:07,152 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-03 01:49:07,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-03 01:49:07,162 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-03 01:49:07,163 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-03 01:49:07,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-03 01:49:07,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-03 01:49:07,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-03 01:49:07,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-03 01:49:07,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-03 01:49:07,180 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-03 01:49:07,182 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-03 01:49:07,183 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-03 01:49:07,184 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-03 01:49:07,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-03 01:49:07,187 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-03 01:49:07,189 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-03 01:49:07,190 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-03 01:49:07,192 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-03 01:49:07,192 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-03 01:49:07,192 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-03 01:49:07,193 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-03 01:49:07,194 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-03 01:49:07,195 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-03 01:49:07,240 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-03 01:49:07,241 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-03 01:49:07,241 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-03 01:49:07,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-03 01:49:07,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-03 01:49:07,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-03 01:49:07,243 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-03 01:49:07,243 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-03 01:49:07,244 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-03 01:49:07,244 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-03 01:49:07,245 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-03 01:49:07,245 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-03 01:49:07,246 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-03 01:49:07,246 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-03 01:49:07,246 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-03 01:49:07,246 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-03 01:49:07,247 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-03 01:49:07,247 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-03 01:49:07,249 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-03 01:49:07,249 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-03 01:49:07,249 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-03 01:49:07,250 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-03 01:49:07,250 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-03 01:49:07,250 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-03 01:49:07,250 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-03 01:49:07,250 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-03 01:49:07,251 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-03 01:49:07,251 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-03 01:49:07,251 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-03 01:49:07,251 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-03 01:49:07,252 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-03 01:49:07,252 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-03 01:49:07,252 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:49:07,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-03 01:49:07,253 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-03 01:49:07,253 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-03 01:49:07,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-03 01:49:07,254 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-03 01:49:07,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-03 01:49:07,256 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-03 01:49:07,256 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-03 01:49:07,257 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_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 53b1b58c0a8af862b137647fd316df606e2053e614741221b62b3a107765e608 [2022-11-03 01:49:07,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-03 01:49:07,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-03 01:49:07,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-03 01:49:07,680 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-03 01:49:07,681 INFO L275 PluginConnector]: CDTParser initialized [2022-11-03 01:49:07,695 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/../../sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2022-11-03 01:49:07,780 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/data/dce46c9f1/d3f607ff1a5a4c73a4f79a0ac8c740cc/FLAGf0dfaa750 [2022-11-03 01:49:08,422 INFO L306 CDTParser]: Found 1 translation units. [2022-11-03 01:49:08,422 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c [2022-11-03 01:49:08,436 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/data/dce46c9f1/d3f607ff1a5a4c73a4f79a0ac8c740cc/FLAGf0dfaa750 [2022-11-03 01:49:08,715 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/data/dce46c9f1/d3f607ff1a5a4c73a4f79a0ac8c740cc [2022-11-03 01:49:08,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-03 01:49:08,722 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-03 01:49:08,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-03 01:49:08,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-03 01:49:08,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-03 01:49:08,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:49:08" (1/1) ... [2022-11-03 01:49:08,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7950ac4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:08, skipping insertion in model container [2022-11-03 01:49:08,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 01:49:08" (1/1) ... [2022-11-03 01:49:08,751 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-03 01:49:08,830 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-03 01:49:09,088 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2022-11-03 01:49:09,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:49:09,155 INFO L203 MainTranslator]: Completed pre-run [2022-11-03 01:49:09,196 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/sv-benchmarks/c/product-lines/minepump_spec3_product61.cil.c[7381,7394] [2022-11-03 01:49:09,234 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-03 01:49:09,252 INFO L208 MainTranslator]: Completed translation [2022-11-03 01:49:09,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09 WrapperNode [2022-11-03 01:49:09,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-03 01:49:09,260 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-03 01:49:09,260 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-03 01:49:09,260 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-03 01:49:09,268 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,327 INFO L138 Inliner]: procedures = 57, calls = 161, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 280 [2022-11-03 01:49:09,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-03 01:49:09,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-03 01:49:09,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-03 01:49:09,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-03 01:49:09,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,346 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,353 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,354 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,357 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-03 01:49:09,357 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-03 01:49:09,358 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-03 01:49:09,358 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-03 01:49:09,359 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (1/1) ... [2022-11-03 01:49:09,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-03 01:49:09,379 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:49:09,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-03 01:49:09,409 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-03 01:49:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-03 01:49:09,430 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-03 01:49:09,430 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-03 01:49:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-03 01:49:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-03 01:49:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-03 01:49:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-03 01:49:09,431 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-03 01:49:09,431 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-03 01:49:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:49:09,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:49:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-03 01:49:09,432 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-03 01:49:09,432 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:49:09,432 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:49:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-03 01:49:09,433 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-03 01:49:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-03 01:49:09,433 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-03 01:49:09,433 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-03 01:49:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-03 01:49:09,434 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-03 01:49:09,434 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-03 01:49:09,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-03 01:49:09,515 INFO L235 CfgBuilder]: Building ICFG [2022-11-03 01:49:09,517 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-03 01:49:10,013 INFO L276 CfgBuilder]: Performing block encoding [2022-11-03 01:49:10,168 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-03 01:49:10,168 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-03 01:49:10,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:49:10 BoogieIcfgContainer [2022-11-03 01:49:10,198 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-03 01:49:10,200 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-03 01:49:10,200 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-03 01:49:10,209 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-03 01:49:10,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 01:49:08" (1/3) ... [2022-11-03 01:49:10,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:49:10, skipping insertion in model container [2022-11-03 01:49:10,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 01:49:09" (2/3) ... [2022-11-03 01:49:10,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58d955b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 01:49:10, skipping insertion in model container [2022-11-03 01:49:10,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:49:10" (3/3) ... [2022-11-03 01:49:10,212 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product61.cil.c [2022-11-03 01:49:10,244 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-03 01:49:10,245 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-03 01:49:10,325 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-03 01:49:10,341 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;@5b9c741, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-03 01:49:10,341 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-03 01:49:10,346 INFO L276 IsEmpty]: Start isEmpty. Operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2022-11-03 01:49:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-03 01:49:10,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:10,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:10,359 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:10,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:10,367 INFO L85 PathProgramCache]: Analyzing trace with hash -1624241747, now seen corresponding path program 1 times [2022-11-03 01:49:10,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:10,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289688222] [2022-11-03 01:49:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:10,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:10,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:10,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:10,686 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:10,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289688222] [2022-11-03 01:49:10,687 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289688222] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:10,687 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:10,689 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-03 01:49:10,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629713954] [2022-11-03 01:49:10,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:10,699 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-03 01:49:10,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:10,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-03 01:49:10,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:49:10,740 INFO L87 Difference]: Start difference. First operand has 75 states, 45 states have (on average 1.4) internal successors, (63), 55 states have internal predecessors, (63), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:49:10,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:10,854 INFO L93 Difference]: Finished difference Result 148 states and 199 transitions. [2022-11-03 01:49:10,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-03 01:49:10,857 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-03 01:49:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:10,875 INFO L225 Difference]: With dead ends: 148 [2022-11-03 01:49:10,875 INFO L226 Difference]: Without dead ends: 70 [2022-11-03 01:49:10,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-03 01:49:10,884 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:10,885 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 77 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:49:10,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-03 01:49:10,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-11-03 01:49:10,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 42 states have (on average 1.3095238095238095) internal successors, (55), 51 states have internal predecessors, (55), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2022-11-03 01:49:10,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 90 transitions. [2022-11-03 01:49:10,940 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 90 transitions. Word has length 17 [2022-11-03 01:49:10,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:10,941 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 90 transitions. [2022-11-03 01:49:10,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:49:10,941 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 90 transitions. [2022-11-03 01:49:10,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-03 01:49:10,946 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:10,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:10,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-03 01:49:10,949 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:10,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash 267909294, now seen corresponding path program 1 times [2022-11-03 01:49:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:10,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380210808] [2022-11-03 01:49:10,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:10,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:10,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:11,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:11,117 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:11,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380210808] [2022-11-03 01:49:11,118 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380210808] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:11,118 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:11,118 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-03 01:49:11,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62221837] [2022-11-03 01:49:11,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:11,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-03 01:49:11,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:11,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-03 01:49:11,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:11,122 INFO L87 Difference]: Start difference. First operand 70 states and 90 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:49:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:11,229 INFO L93 Difference]: Finished difference Result 117 states and 151 transitions. [2022-11-03 01:49:11,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-03 01:49:11,236 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-03 01:49:11,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:11,238 INFO L225 Difference]: With dead ends: 117 [2022-11-03 01:49:11,240 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 01:49:11,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-03 01:49:11,245 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 7 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:11,246 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 117 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:49:11,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 01:49:11,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-03 01:49:11,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.3243243243243243) internal successors, (49), 46 states have internal predecessors, (49), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:49:11,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-11-03 01:49:11,268 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 18 [2022-11-03 01:49:11,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:11,269 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-11-03 01:49:11,269 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-03 01:49:11,270 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-11-03 01:49:11,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-03 01:49:11,273 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:11,273 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] [2022-11-03 01:49:11,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-03 01:49:11,274 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:11,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:11,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1242194500, now seen corresponding path program 1 times [2022-11-03 01:49:11,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:11,284 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973396798] [2022-11-03 01:49:11,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:11,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:11,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:11,438 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:11,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973396798] [2022-11-03 01:49:11,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973396798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:11,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:11,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-03 01:49:11,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214488341] [2022-11-03 01:49:11,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:11,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-03 01:49:11,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:11,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-03 01:49:11,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-03 01:49:11,442 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-11-03 01:49:11,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:11,569 INFO L93 Difference]: Finished difference Result 122 states and 157 transitions. [2022-11-03 01:49:11,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-03 01:49:11,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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 [2022-11-03 01:49:11,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:11,572 INFO L225 Difference]: With dead ends: 122 [2022-11-03 01:49:11,572 INFO L226 Difference]: Without dead ends: 62 [2022-11-03 01:49:11,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:49:11,575 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 75 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:11,576 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 83 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:49:11,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-11-03 01:49:11,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62. [2022-11-03 01:49:11,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 46 states have internal predecessors, (48), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2022-11-03 01:49:11,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions. [2022-11-03 01:49:11,593 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 20 [2022-11-03 01:49:11,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:11,593 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions. [2022-11-03 01:49:11,593 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 4 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) [2022-11-03 01:49:11,594 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions. [2022-11-03 01:49:11,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-03 01:49:11,600 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:11,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:11,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-03 01:49:11,601 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:11,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:11,601 INFO L85 PathProgramCache]: Analyzing trace with hash 816133155, now seen corresponding path program 1 times [2022-11-03 01:49:11,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:11,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933366889] [2022-11-03 01:49:11,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:11,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:11,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:11,853 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:11,854 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933366889] [2022-11-03 01:49:11,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933366889] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:11,855 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:11,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:49:11,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877316803] [2022-11-03 01:49:11,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:11,856 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:49:11,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:11,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:49:11,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:49:11,857 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:49:12,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:12,214 INFO L93 Difference]: Finished difference Result 195 states and 244 transitions. [2022-11-03 01:49:12,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-03 01:49:12,215 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 31 [2022-11-03 01:49:12,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:12,219 INFO L225 Difference]: With dead ends: 195 [2022-11-03 01:49:12,220 INFO L226 Difference]: Without dead ends: 135 [2022-11-03 01:49:12,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:49:12,233 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 134 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:12,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 180 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-03 01:49:12,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2022-11-03 01:49:12,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 129. [2022-11-03 01:49:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 83 states have (on average 1.2409638554216869) internal successors, (103), 91 states have internal predecessors, (103), 22 states have call successors, (22), 18 states have call predecessors, (22), 23 states have return successors, (29), 24 states have call predecessors, (29), 22 states have call successors, (29) [2022-11-03 01:49:12,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 154 transitions. [2022-11-03 01:49:12,288 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 154 transitions. Word has length 31 [2022-11-03 01:49:12,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:12,289 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 154 transitions. [2022-11-03 01:49:12,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-03 01:49:12,289 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 154 transitions. [2022-11-03 01:49:12,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-03 01:49:12,290 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:12,290 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:12,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-03 01:49:12,291 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:12,291 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:12,291 INFO L85 PathProgramCache]: Analyzing trace with hash 208436032, now seen corresponding path program 1 times [2022-11-03 01:49:12,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:12,292 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988101951] [2022-11-03 01:49:12,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:12,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:12,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:12,541 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:12,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988101951] [2022-11-03 01:49:12,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988101951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:12,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:12,542 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-03 01:49:12,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650140893] [2022-11-03 01:49:12,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:12,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:49:12,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:12,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:49:12,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-03 01:49:12,544 INFO L87 Difference]: Start difference. First operand 129 states and 154 transitions. Second operand has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:49:12,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:12,692 INFO L93 Difference]: Finished difference Result 332 states and 400 transitions. [2022-11-03 01:49:12,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:49:12,693 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 36 [2022-11-03 01:49:12,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:12,695 INFO L225 Difference]: With dead ends: 332 [2022-11-03 01:49:12,695 INFO L226 Difference]: Without dead ends: 205 [2022-11-03 01:49:12,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-03 01:49:12,697 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 72 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:12,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 283 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:49:12,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-11-03 01:49:12,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 186. [2022-11-03 01:49:12,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 120 states have (on average 1.2083333333333333) internal successors, (145), 130 states have internal predecessors, (145), 31 states have call successors, (31), 26 states have call predecessors, (31), 34 states have return successors, (41), 35 states have call predecessors, (41), 31 states have call successors, (41) [2022-11-03 01:49:12,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 217 transitions. [2022-11-03 01:49:12,725 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 217 transitions. Word has length 36 [2022-11-03 01:49:12,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:12,726 INFO L495 AbstractCegarLoop]: Abstraction has 186 states and 217 transitions. [2022-11-03 01:49:12,726 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.4) internal successors, (27), 5 states have internal predecessors, (27), 3 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-03 01:49:12,726 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 217 transitions. [2022-11-03 01:49:12,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-03 01:49:12,728 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:12,728 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:49:12,728 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-03 01:49:12,728 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:12,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:12,729 INFO L85 PathProgramCache]: Analyzing trace with hash 2132735538, now seen corresponding path program 1 times [2022-11-03 01:49:12,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:12,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688767115] [2022-11-03 01:49:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:12,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:13,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:13,172 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:13,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688767115] [2022-11-03 01:49:13,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688767115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:49:13,172 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:49:13,172 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-11-03 01:49:13,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743225128] [2022-11-03 01:49:13,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:49:13,173 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-03 01:49:13,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:49:13,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-03 01:49:13,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-03 01:49:13,174 INFO L87 Difference]: Start difference. First operand 186 states and 217 transitions. Second operand has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:49:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:49:14,109 INFO L93 Difference]: Finished difference Result 543 states and 670 transitions. [2022-11-03 01:49:14,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-03 01:49:14,109 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) Word has length 39 [2022-11-03 01:49:14,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:49:14,115 INFO L225 Difference]: With dead ends: 543 [2022-11-03 01:49:14,116 INFO L226 Difference]: Without dead ends: 416 [2022-11-03 01:49:14,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=194, Unknown=0, NotChecked=0, Total=272 [2022-11-03 01:49:14,120 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 321 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 607 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 766 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 607 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-03 01:49:14,122 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 350 Invalid, 766 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 607 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-03 01:49:14,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2022-11-03 01:49:14,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 384. [2022-11-03 01:49:14,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 384 states, 251 states have (on average 1.2350597609561753) internal successors, (310), 271 states have internal predecessors, (310), 68 states have call successors, (68), 52 states have call predecessors, (68), 64 states have return successors, (89), 71 states have call predecessors, (89), 68 states have call successors, (89) [2022-11-03 01:49:14,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384 states to 384 states and 467 transitions. [2022-11-03 01:49:14,195 INFO L78 Accepts]: Start accepts. Automaton has 384 states and 467 transitions. Word has length 39 [2022-11-03 01:49:14,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:49:14,195 INFO L495 AbstractCegarLoop]: Abstraction has 384 states and 467 transitions. [2022-11-03 01:49:14,196 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.111111111111111) internal successors, (28), 9 states have internal predecessors, (28), 6 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-03 01:49:14,196 INFO L276 IsEmpty]: Start isEmpty. Operand 384 states and 467 transitions. [2022-11-03 01:49:14,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-11-03 01:49:14,197 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:49:14,197 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] [2022-11-03 01:49:14,197 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-03 01:49:14,198 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:49:14,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:49:14,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1727678004, now seen corresponding path program 1 times [2022-11-03 01:49:14,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:49:14,199 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849716684] [2022-11-03 01:49:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:49:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:14,709 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:49:14,710 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:49:14,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849716684] [2022-11-03 01:49:14,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849716684] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:49:14,710 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333049662] [2022-11-03 01:49:14,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:49:14,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:49:14,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:49:14,713 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:49:14,724 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-03 01:49:14,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:49:14,856 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 33 conjunts are in the unsatisfiable core [2022-11-03 01:49:14,862 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:49:15,345 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-03 01:49:15,345 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:49:16,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-03 01:49:16,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333049662] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:49:16,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1907428866] [2022-11-03 01:49:16,315 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-03 01:49:16,315 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:49:16,319 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:49:16,325 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:49:16,325 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:49:18,715 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 01:49:18,794 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 295 for LOIs [2022-11-03 01:49:23,599 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 292 for LOIs [2022-11-03 01:49:24,310 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 292 for LOIs [2022-11-03 01:49:25,091 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 293 for LOIs [2022-11-03 01:49:25,499 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 45 for LOIs [2022-11-03 01:49:25,506 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:50:20,369 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '4013#(and (= (select (select |#memory_int| 14) 3) 84) (= (select (select |#memory_int| 6) 2) 102) (= (select (select |#memory_int| 11) 1) 0) (= 1 (select |#valid| 5)) (= 32 (select (select |#memory_int| 10) 1)) (= (select |#length| 3) 12) (= (select (select |#memory_int| 9) 0) 79) (= (select |#valid| 15) 1) (= 112 (select (select |#memory_int| 7) 4)) (= (select (select |#memory_int| 6) 0) 79) (= 3 (select |#length| 10)) (= (select |#valid| 26) 1) (= (select (select |#memory_int| 7) 1) 80) (= 58 (select (select |#memory_int| 13) 5)) (= (select |#length| 8) 3) (= (select |#length| 6) 4) (= (select |#valid| 9) 1) (= (select |#length| 4) 13) (= 117 (select (select |#memory_int| 7) 2)) (= (select (select |#memory_int| 5) 2) 0) (= 7 (select |#length| 7)) (= 7 (select |#length| 13)) (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~1#1|) (= 110 (select (select |#memory_int| 8) 1)) (= (select (select |#memory_int| 6) 1) 102) (= (select |#valid| 11) 1) (= (select |#valid| 27) 1) (= 58 (select (select |#memory_int| 7) 5)) (= (select (select |#memory_int| 8) 0) 79) (= 30 (select |#length| 23)) (= 41 (select (select |#memory_int| 16) 0)) (= 44 (select (select |#memory_int| 7) 0)) (= (select |#length| 24) 9) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= 31 (select |#length| 2)) (= ~head~0.offset 0) (= 44 (select (select |#memory_int| 13) 0)) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~1#1|) (= (select (select |#memory_int| 11) 0) 10) (<= 1 ~systemActive~0) (= (select (select |#memory_int| 14) 4) 0) (= 2 (select |#length| 1)) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1|) (= (select |#length| 17) 30) (= 73 (select (select |#memory_int| 14) 2)) (= 9 (select |#length| 18)) (= (select |#length| 19) 21) (= (select |#valid| 3) 1) (= (select |#valid| 7) 1) (= (select |#length| 22) 21) (= (select |#valid| 18) 1) (<= |#NULL.offset| 0) (= (select |#valid| 22) 1) (= 3 (select |#length| 5)) (= 30 (select |#length| 26)) (= 77 (select (select |#memory_int| 13) 1)) (= 2 (select |#length| 11)) (= (select |#length| 15) 3) (= |old(~pumpRunning~0)| 0) (= (select |#valid| 24) 1) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~1#1|) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1|) (= (select (select |#memory_int| 9) 3) 0) (= (select |#valid| 12) 1) (= (select |#valid| 28) 1) (<= ~methaneLevelCritical~0 0) (= (select (select |#memory_int| 14) 1) 82) (= (select |#valid| 4) 1) (= (select (select |#memory_int| 9) 1) 102) (= (select (select |#memory_int| 8) 2) 0) (= (select (select |#memory_int| 16) 1) 0) (= 101 (select (select |#memory_int| 13) 2)) (<= 0 ~head~0.base) (= 25 (select |#length| 25)) (= (select |#valid| 1) 1) (= (select (select |#memory_int| 7) 6) 0) (= (select (select |#memory_int| 9) 2) 102) (= (select |#valid| 20) 1) (= (select (select |#memory_int| 5) 0) 79) (= (select |#length| 12) 13) (= 2 (select |#length| 16)) (= (select |#valid| 21) 1) (= (select |#length| 9) 4) (= 104 (select (select |#memory_int| 13) 4)) (<= 0 ~methaneLevelCritical~0) (= (select |#length| 21) 9) (= (select |#valid| 14) 1) (= |old(~waterLevel~0)| ~waterLevel~0) (= 116 (select (select |#memory_int| 13) 3)) (= 5 (select |#length| 14)) (= (select |#valid| 0) 0) (= 30 (select |#length| 20)) (= (select |#valid| 25) 1) (<= ~head~0.base 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~1#1|) (= (select |#valid| 2) 1) (= (select (select |#memory_int| 14) 0) 67) (= (select (select |#memory_int| 10) 2) 0) (= (select |#length| 27) 9) (= (select (select |#memory_int| 1) 0) 48) (= (select |#valid| 23) 1) (= (select |#valid| 19) 1) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1|) (= (select (select |#memory_int| 15) 1) 75) (= 109 (select (select |#memory_int| 7) 3)) (<= 0 |#NULL.offset|) (= (select (select |#memory_int| 6) 3) 0) (= 0 (select (select |#memory_int| 13) 6)) (= (select |#valid| 16) 1) (= (select (select |#memory_int| 15) 2) 0) (= (select |#valid| 6) 1) (= (select (select |#memory_int| 1) 1) 0) (= (select (select |#memory_int| 15) 0) 79) (= (select (select |#memory_int| 10) 0) 41) (= (select |#valid| 17) 1) (= (select |#valid| 10) 1) (= (select (select |#memory_int| 5) 1) 110) (= (select |#valid| 8) 1) (= (select |#length| 28) 25) (= (select |#valid| 13) 1) (< 0 |#StackHeapBarrier|) (<= ~systemActive~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 01:50:20,369 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:50:20,370 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:50:20,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 12] total 27 [2022-11-03 01:50:20,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548431904] [2022-11-03 01:50:20,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:50:20,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-03 01:50:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:20,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-03 01:50:20,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=349, Invalid=2621, Unknown=0, NotChecked=0, Total=2970 [2022-11-03 01:50:20,373 INFO L87 Difference]: Start difference. First operand 384 states and 467 transitions. Second operand has 27 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 7 states have call successors, (17), 5 states have call predecessors, (17), 12 states have return successors, (18), 15 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:50:25,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:25,770 INFO L93 Difference]: Finished difference Result 1784 states and 2263 transitions. [2022-11-03 01:50:25,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-11-03 01:50:25,775 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 7 states have call successors, (17), 5 states have call predecessors, (17), 12 states have return successors, (18), 15 states have call predecessors, (18), 7 states have call successors, (18) Word has length 44 [2022-11-03 01:50:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:25,793 INFO L225 Difference]: With dead ends: 1784 [2022-11-03 01:50:25,794 INFO L226 Difference]: Without dead ends: 1479 [2022-11-03 01:50:25,803 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 87 SyntacticMatches, 9 SemanticMatches, 127 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6319 ImplicationChecksByTransitivity, 58.2s TimeCoverageRelationStatistics Valid=1422, Invalid=15090, Unknown=0, NotChecked=0, Total=16512 [2022-11-03 01:50:25,804 INFO L413 NwaCegarLoop]: 187 mSDtfsCounter, 921 mSDsluCounter, 1921 mSDsCounter, 0 mSdLazyCounter, 2704 mSolverCounterSat, 583 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 933 SdHoareTripleChecker+Valid, 1879 SdHoareTripleChecker+Invalid, 3287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 583 IncrementalHoareTripleChecker+Valid, 2704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:25,805 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [933 Valid, 1879 Invalid, 3287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [583 Valid, 2704 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-03 01:50:25,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1479 states. [2022-11-03 01:50:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1479 to 1213. [2022-11-03 01:50:25,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1213 states, 810 states have (on average 1.2135802469135804) internal successors, (983), 852 states have internal predecessors, (983), 208 states have call successors, (208), 165 states have call predecessors, (208), 194 states have return successors, (288), 216 states have call predecessors, (288), 208 states have call successors, (288) [2022-11-03 01:50:25,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1213 states to 1213 states and 1479 transitions. [2022-11-03 01:50:25,976 INFO L78 Accepts]: Start accepts. Automaton has 1213 states and 1479 transitions. Word has length 44 [2022-11-03 01:50:25,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:25,977 INFO L495 AbstractCegarLoop]: Abstraction has 1213 states and 1479 transitions. [2022-11-03 01:50:25,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 21 states have (on average 3.8095238095238093) internal successors, (80), 21 states have internal predecessors, (80), 7 states have call successors, (17), 5 states have call predecessors, (17), 12 states have return successors, (18), 15 states have call predecessors, (18), 7 states have call successors, (18) [2022-11-03 01:50:25,978 INFO L276 IsEmpty]: Start isEmpty. Operand 1213 states and 1479 transitions. [2022-11-03 01:50:25,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-03 01:50:25,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:25,981 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] [2022-11-03 01:50:26,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-03 01:50:26,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-11-03 01:50:26,203 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:26,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:26,203 INFO L85 PathProgramCache]: Analyzing trace with hash 385498576, now seen corresponding path program 1 times [2022-11-03 01:50:26,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:26,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317992439] [2022-11-03 01:50:26,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:26,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:26,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:26,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-03 01:50:26,574 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:26,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317992439] [2022-11-03 01:50:26,574 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [317992439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:26,574 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:26,574 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-03 01:50:26,575 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111317625] [2022-11-03 01:50:26,575 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:26,575 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-03 01:50:26,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:26,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-03 01:50:26,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2022-11-03 01:50:26,576 INFO L87 Difference]: Start difference. First operand 1213 states and 1479 transitions. Second operand has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 01:50:27,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:27,498 INFO L93 Difference]: Finished difference Result 2226 states and 2858 transitions. [2022-11-03 01:50:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-11-03 01:50:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) Word has length 47 [2022-11-03 01:50:27,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:27,510 INFO L225 Difference]: With dead ends: 2226 [2022-11-03 01:50:27,510 INFO L226 Difference]: Without dead ends: 1541 [2022-11-03 01:50:27,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=170, Invalid=760, Unknown=0, NotChecked=0, Total=930 [2022-11-03 01:50:27,514 INFO L413 NwaCegarLoop]: 132 mSDtfsCounter, 312 mSDsluCounter, 926 mSDsCounter, 0 mSdLazyCounter, 746 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 937 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 746 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:27,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [323 Valid, 925 Invalid, 937 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 746 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-03 01:50:27,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1541 states. [2022-11-03 01:50:27,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1541 to 1302. [2022-11-03 01:50:27,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 867 states have (on average 1.1949250288350635) internal successors, (1036), 918 states have internal predecessors, (1036), 223 states have call successors, (223), 179 states have call predecessors, (223), 211 states have return successors, (325), 226 states have call predecessors, (325), 223 states have call successors, (325) [2022-11-03 01:50:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1584 transitions. [2022-11-03 01:50:27,683 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1584 transitions. Word has length 47 [2022-11-03 01:50:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:27,684 INFO L495 AbstractCegarLoop]: Abstraction has 1302 states and 1584 transitions. [2022-11-03 01:50:27,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 10 states have internal predecessors, (31), 2 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (7), 6 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-03 01:50:27,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1584 transitions. [2022-11-03 01:50:27,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-03 01:50:27,687 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:27,688 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 01:50:27,688 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-03 01:50:27,688 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:27,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash -2091900219, now seen corresponding path program 1 times [2022-11-03 01:50:27,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:27,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177041533] [2022-11-03 01:50:27,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:27,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:27,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:27,991 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 01:50:27,991 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:27,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177041533] [2022-11-03 01:50:27,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177041533] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:50:27,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-03 01:50:27,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-03 01:50:27,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270656309] [2022-11-03 01:50:27,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:50:27,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-03 01:50:27,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:50:27,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-03 01:50:27,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-03 01:50:27,994 INFO L87 Difference]: Start difference. First operand 1302 states and 1584 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 6 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-03 01:50:28,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:50:28,446 INFO L93 Difference]: Finished difference Result 2245 states and 2755 transitions. [2022-11-03 01:50:28,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-03 01:50:28,446 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 6 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 6 states have call successors, (9) Word has length 72 [2022-11-03 01:50:28,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:50:28,453 INFO L225 Difference]: With dead ends: 2245 [2022-11-03 01:50:28,453 INFO L226 Difference]: Without dead ends: 1244 [2022-11-03 01:50:28,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-11-03 01:50:28,456 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 144 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 276 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 276 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-03 01:50:28,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 153 Invalid, 356 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 276 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-03 01:50:28,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1244 states. [2022-11-03 01:50:28,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1244 to 1136. [2022-11-03 01:50:28,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 758 states have (on average 1.1978891820580475) internal successors, (908), 801 states have internal predecessors, (908), 195 states have call successors, (195), 162 states have call predecessors, (195), 182 states have return successors, (274), 193 states have call predecessors, (274), 195 states have call successors, (274) [2022-11-03 01:50:28,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1377 transitions. [2022-11-03 01:50:28,591 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1377 transitions. Word has length 72 [2022-11-03 01:50:28,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:50:28,592 INFO L495 AbstractCegarLoop]: Abstraction has 1136 states and 1377 transitions. [2022-11-03 01:50:28,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 6 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (9), 4 states have call predecessors, (9), 6 states have call successors, (9) [2022-11-03 01:50:28,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1377 transitions. [2022-11-03 01:50:28,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2022-11-03 01:50:28,594 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:50:28,594 INFO L195 NwaCegarLoop]: trace histogram [4, 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] [2022-11-03 01:50:28,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-03 01:50:28,595 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:50:28,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:50:28,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1804366665, now seen corresponding path program 1 times [2022-11-03 01:50:28,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:50:28,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036244605] [2022-11-03 01:50:28,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:28,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:50:28,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:29,133 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-03 01:50:29,133 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:50:29,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036244605] [2022-11-03 01:50:29,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036244605] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:50:29,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [309465560] [2022-11-03 01:50:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:50:29,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:50:29,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:50:29,135 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:50:29,141 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-03 01:50:29,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:50:29,265 INFO L263 TraceCheckSpWp]: Trace formula consists of 456 conjuncts, 24 conjunts are in the unsatisfiable core [2022-11-03 01:50:29,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:50:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 12 proven. 11 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-03 01:50:29,540 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-03 01:50:29,855 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-11-03 01:50:29,855 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [309465560] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-03 01:50:29,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1612917779] [2022-11-03 01:50:29,858 INFO L159 IcfgInterpreter]: Started Sifa with 51 locations of interest [2022-11-03 01:50:29,859 INFO L166 IcfgInterpreter]: Building call graph [2022-11-03 01:50:29,859 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-03 01:50:29,859 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-03 01:50:29,859 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-03 01:50:36,182 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 294 for LOIs [2022-11-03 01:50:36,213 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 299 for LOIs [2022-11-03 01:50:37,378 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 299 for LOIs [2022-11-03 01:50:38,470 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__highWaterSensor with input of size 299 for LOIs [2022-11-03 01:50:39,969 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 299 for LOIs [2022-11-03 01:50:40,351 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneLevelCritical with input of size 316 for LOIs [2022-11-03 01:50:40,411 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-03 01:51:25,917 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '19610#(and (= 0 |timeShift___utac_acc__Specification3_spec__1_~tmp___1~1#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~5#1| |timeShift_getWaterLevel_#res#1|) (= ~head~0.offset 0) (= ~pumpRunning~0 |timeShift_isPumpRunning_~retValue_acc~1#1|) (= |timeShift_getWaterLevel_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1|) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_isPumpRunning_#res#1| |timeShift_isPumpRunning_~retValue_acc~1#1|) (= |timeShift_getWaterLevel_~retValue_acc~5#1| ~waterLevel~0) (= 2 |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1|) (<= 2 |old(~waterLevel~0)|) (= ~head~0.base 0) (= |timeShift_isPumpRunning_#res#1| |timeShift___utac_acc__Specification3_spec__1_~tmp___1~1#1|) (= |#NULL.offset| 0) (= ~methaneLevelCritical~0 |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1|) (<= 0 |#StackHeapBarrier|) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-03 01:51:25,917 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-03 01:51:25,917 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-03 01:51:25,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 8] total 20 [2022-11-03 01:51:25,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489062877] [2022-11-03 01:51:25,918 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-03 01:51:25,918 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-11-03 01:51:25,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:25,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-11-03 01:51:25,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=282, Invalid=1974, Unknown=0, NotChecked=0, Total=2256 [2022-11-03 01:51:25,920 INFO L87 Difference]: Start difference. First operand 1136 states and 1377 transitions. Second operand has 20 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 10 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 10 states have call successors, (22) [2022-11-03 01:51:29,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:29,381 INFO L93 Difference]: Finished difference Result 3838 states and 4927 transitions. [2022-11-03 01:51:29,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-11-03 01:51:29,382 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 10 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 10 states have call successors, (22) Word has length 75 [2022-11-03 01:51:29,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:29,398 INFO L225 Difference]: With dead ends: 3838 [2022-11-03 01:51:29,398 INFO L226 Difference]: Without dead ends: 2995 [2022-11-03 01:51:29,404 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 190 SyntacticMatches, 15 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3208 ImplicationChecksByTransitivity, 47.3s TimeCoverageRelationStatistics Valid=933, Invalid=6377, Unknown=0, NotChecked=0, Total=7310 [2022-11-03 01:51:29,405 INFO L413 NwaCegarLoop]: 119 mSDtfsCounter, 1410 mSDsluCounter, 514 mSDsCounter, 0 mSdLazyCounter, 1523 mSolverCounterSat, 1032 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 2555 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1032 IncrementalHoareTripleChecker+Valid, 1523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:29,405 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 516 Invalid, 2555 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1032 Valid, 1523 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-11-03 01:51:29,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2995 states. [2022-11-03 01:51:29,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2995 to 2682. [2022-11-03 01:51:29,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 1770 states have (on average 1.1661016949152543) internal successors, (2064), 1860 states have internal predecessors, (2064), 458 states have call successors, (458), 397 states have call predecessors, (458), 453 states have return successors, (689), 458 states have call predecessors, (689), 458 states have call successors, (689) [2022-11-03 01:51:29,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3211 transitions. [2022-11-03 01:51:29,747 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3211 transitions. Word has length 75 [2022-11-03 01:51:29,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:29,747 INFO L495 AbstractCegarLoop]: Abstraction has 2682 states and 3211 transitions. [2022-11-03 01:51:29,748 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 5.166666666666667) internal successors, (93), 18 states have internal predecessors, (93), 10 states have call successors, (24), 8 states have call predecessors, (24), 7 states have return successors, (22), 9 states have call predecessors, (22), 10 states have call successors, (22) [2022-11-03 01:51:29,748 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3211 transitions. [2022-11-03 01:51:29,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2022-11-03 01:51:29,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-03 01:51:29,750 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:51:29,790 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:29,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-03 01:51:29,975 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-03 01:51:29,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-03 01:51:29,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1504846347, now seen corresponding path program 1 times [2022-11-03 01:51:29,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-03 01:51:29,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1068462154] [2022-11-03 01:51:29,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:29,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-03 01:51:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 5 proven. 19 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-03 01:51:30,987 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-03 01:51:30,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1068462154] [2022-11-03 01:51:30,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1068462154] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-03 01:51:30,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712442291] [2022-11-03 01:51:30,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-03 01:51:30,987 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:30,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 [2022-11-03 01:51:30,990 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-03 01:51:31,010 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-03 01:51:31,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-03 01:51:31,105 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-03 01:51:31,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-03 01:51:31,234 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-11-03 01:51:31,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-03 01:51:31,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712442291] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-03 01:51:31,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-03 01:51:31,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [21] total 23 [2022-11-03 01:51:31,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928868500] [2022-11-03 01:51:31,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-03 01:51:31,237 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-03 01:51:31,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-03 01:51:31,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-03 01:51:31,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=439, Unknown=0, NotChecked=0, Total=506 [2022-11-03 01:51:31,238 INFO L87 Difference]: Start difference. First operand 2682 states and 3211 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:51:31,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-03 01:51:31,717 INFO L93 Difference]: Finished difference Result 5142 states and 6213 transitions. [2022-11-03 01:51:31,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-03 01:51:31,718 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 83 [2022-11-03 01:51:31,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-03 01:51:31,720 INFO L225 Difference]: With dead ends: 5142 [2022-11-03 01:51:31,720 INFO L226 Difference]: Without dead ends: 0 [2022-11-03 01:51:31,732 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 89 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=77, Invalid=523, Unknown=0, NotChecked=0, Total=600 [2022-11-03 01:51:31,733 INFO L413 NwaCegarLoop]: 90 mSDtfsCounter, 64 mSDsluCounter, 235 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-03 01:51:31,733 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 288 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-03 01:51:31,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-03 01:51:31,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-03 01:51:31,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-03 01:51:31,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-03 01:51:31,735 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 83 [2022-11-03 01:51:31,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-03 01:51:31,736 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-03 01:51:31,736 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2022-11-03 01:51:31,736 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-03 01:51:31,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-03 01:51:31,739 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-03 01:51:31,774 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-03 01:51:31,966 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-03 01:51:31,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-03 01:51:52,727 WARN L234 SmtUtils]: Spent 5.03s on a formula simplification. DAG size of input: 679 DAG size of output: 57 (called from [L 149] de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.HoareAnnotationComposer.combineInter) [2022-11-03 01:52:01,012 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 266 273) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~pumpRunning~0)| 0) (not (<= ~waterLevel~0 1)) (= 0 ~systemActive~0)) [2022-11-03 01:52:01,012 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 266 273) no Hoare annotation was computed. [2022-11-03 01:52:01,013 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 156 162) no Hoare annotation was computed. [2022-11-03 01:52:01,013 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 156 162) the Hoare annotation is: true [2022-11-03 01:52:01,013 INFO L895 garLoopResultBuilder]: At program point L209(line 209) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= 0 ~systemActive~0))) (and (or .cse0 (not (<= ~waterLevel~0 1)) .cse1) (or (not .cse0) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse1))) [2022-11-03 01:52:01,013 INFO L899 garLoopResultBuilder]: For program point L209-1(lines 190 214) no Hoare annotation was computed. [2022-11-03 01:52:01,013 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 190 214) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,014 INFO L895 garLoopResultBuilder]: At program point L204(line 204) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,014 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 190 214) no Hoare annotation was computed. [2022-11-03 01:52:01,014 INFO L895 garLoopResultBuilder]: At program point L200(line 200) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,014 INFO L899 garLoopResultBuilder]: For program point L198(lines 198 206) no Hoare annotation was computed. [2022-11-03 01:52:01,014 INFO L895 garLoopResultBuilder]: At program point L194(lines 194 211) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,015 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 396 407) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= ~waterLevel~0 2))) (.cse2 (= ~pumpRunning~0 1))) (and (or (not (= |old(~methaneLevelCritical~0)| 0)) (not (= ~pumpRunning~0 0)) (= ~methaneLevelCritical~0 0) .cse0 .cse1) (or .cse0 (not .cse2) .cse1 (not (<= |old(~methaneLevelCritical~0)| 0)) (and (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0)) (< ~waterLevel~0 2) (not (<= 0 |old(~methaneLevelCritical~0)|))) (or (<= 1 ~methaneLevelCritical~0) (and (not (<= (+ |old(~methaneLevelCritical~0)| 1) 0)) (not (<= 1 |old(~methaneLevelCritical~0)|))) (<= (+ ~methaneLevelCritical~0 1) 0) .cse1 (= 0 ~systemActive~0) .cse2))) [2022-11-03 01:52:01,015 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 396 407) no Hoare annotation was computed. [2022-11-03 01:52:01,015 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 408 416) the Hoare annotation is: true [2022-11-03 01:52:01,015 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 408 416) no Hoare annotation was computed. [2022-11-03 01:52:01,015 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 483 512) no Hoare annotation was computed. [2022-11-03 01:52:01,015 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 483 512) the Hoare annotation is: true [2022-11-03 01:52:01,018 INFO L902 garLoopResultBuilder]: At program point L508(lines 483 512) the Hoare annotation is: true [2022-11-03 01:52:01,018 INFO L899 garLoopResultBuilder]: For program point L504(line 504) no Hoare annotation was computed. [2022-11-03 01:52:01,018 INFO L899 garLoopResultBuilder]: For program point L497(lines 497 501) no Hoare annotation was computed. [2022-11-03 01:52:01,018 INFO L902 garLoopResultBuilder]: At program point L497-1(lines 497 501) the Hoare annotation is: true [2022-11-03 01:52:01,018 INFO L902 garLoopResultBuilder]: At program point L493-2(lines 493 507) the Hoare annotation is: true [2022-11-03 01:52:01,018 INFO L902 garLoopResultBuilder]: At program point L489(line 489) the Hoare annotation is: true [2022-11-03 01:52:01,019 INFO L899 garLoopResultBuilder]: For program point L489-1(line 489) no Hoare annotation was computed. [2022-11-03 01:52:01,019 INFO L895 garLoopResultBuilder]: At program point L477(line 477) the Hoare annotation is: (or (= 0 ~systemActive~0) (not (<= |old(~waterLevel~0)| 2))) [2022-11-03 01:52:01,019 INFO L899 garLoopResultBuilder]: For program point L143-1(lines 143 149) no Hoare annotation was computed. [2022-11-03 01:52:01,019 INFO L895 garLoopResultBuilder]: At program point L230(line 230) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and .cse2 (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) (< |old(~waterLevel~0)| 2) .cse1 (not (<= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (and .cse2 (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))))))) [2022-11-03 01:52:01,019 INFO L895 garLoopResultBuilder]: At program point L226(line 226) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and .cse2 (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) (< |old(~waterLevel~0)| 2) .cse1 (not (<= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (and .cse2 (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))))))) [2022-11-03 01:52:01,020 INFO L895 garLoopResultBuilder]: At program point L222(line 222) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (= 0 ~systemActive~0)) (.cse2 (= ~pumpRunning~0 |old(~pumpRunning~0)|))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 0)) .cse1) (or (and .cse2 (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) (< |old(~waterLevel~0)| 2) .cse1 (not (<= |old(~waterLevel~0)| 2))) (or .cse0 .cse1 (and .cse2 (let ((.cse3 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse3) (= |old(~waterLevel~0)| ~waterLevel~0)) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse3))))))) [2022-11-03 01:52:01,020 INFO L899 garLoopResultBuilder]: For program point L222-1(line 222) no Hoare annotation was computed. [2022-11-03 01:52:01,020 INFO L895 garLoopResultBuilder]: At program point L590(lines 590 610) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0)) (.cse1 (= |old(~pumpRunning~0)| 0)) (.cse4 (= ~pumpRunning~0 0))) (let ((.cse10 (not .cse4)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse9 (not .cse1)) (.cse5 (<= ~waterLevel~0 1)) (.cse12 (not .cse3))) (let ((.cse0 (and .cse9 .cse4 .cse5 .cse12)) (.cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse10 .cse5 (let ((.cse11 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse11) .cse6) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse11))) .cse12)) (.cse7 (= ~waterLevel~0 1)) (.cse8 (not (<= |old(~waterLevel~0)| 2)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6) .cse0 (and (not .cse7) .cse6 (or (<= 1 ~methaneLevelCritical~0) (<= (+ ~methaneLevelCritical~0 1) 0) (= ~pumpRunning~0 1))) .cse2 .cse3 .cse8) (or .cse1 .cse3 .cse7 .cse8 (not (<= 2 |old(~waterLevel~0)|))) (or .cse9 .cse10 (= ~methaneLevelCritical~0 0) .cse3 .cse8 (not (= |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1| 0))))))) [2022-11-03 01:52:01,021 INFO L895 garLoopResultBuilder]: At program point L235(line 235) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2)))) (and (or (= |old(~pumpRunning~0)| 0) .cse0 .cse1) (or (and (= ~pumpRunning~0 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse1))) [2022-11-03 01:52:01,021 INFO L895 garLoopResultBuilder]: At program point L235-1(lines 216 240) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not .cse7)) (.cse8 (= ~pumpRunning~0 0)) (.cse6 (= ~waterLevel~0 1)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (or (<= 1 ~methaneLevelCritical~0) (<= (+ ~methaneLevelCritical~0 1) 0) (= ~pumpRunning~0 1))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2) .cse3 .cse4) (or (and .cse5 .cse6) .cse7 (and .cse8 .cse6) .cse3 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse9 .cse7 .cse3 (and .cse5 (let ((.cse10 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse10) .cse1) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse10)))) (and .cse8 (<= ~waterLevel~0 1))) (or .cse9 .cse0 (and .cse8 .cse1) (and (not .cse6) .cse1 .cse2) .cse3)))) [2022-11-03 01:52:01,021 INFO L899 garLoopResultBuilder]: For program point L136-1(lines 135 154) no Hoare annotation was computed. [2022-11-03 01:52:01,021 INFO L899 garLoopResultBuilder]: For program point L224(lines 224 232) no Hoare annotation was computed. [2022-11-03 01:52:01,021 INFO L899 garLoopResultBuilder]: For program point L220(lines 220 237) no Hoare annotation was computed. [2022-11-03 01:52:01,022 INFO L899 garLoopResultBuilder]: For program point L600(lines 600 606) no Hoare annotation was computed. [2022-11-03 01:52:01,022 INFO L895 garLoopResultBuilder]: At program point L596(lines 596 609) the Hoare annotation is: (let ((.cse3 (= 0 ~systemActive~0)) (.cse14 (= ~pumpRunning~0 0))) (let ((.cse9 (not .cse14)) (.cse11 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse10 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse12 (<= ~waterLevel~0 1)) (.cse8 (<= |timeShift___utac_acc__Specification3_spec__1_~tmp___0~3#1| 1)) (.cse13 (not .cse3))) (let ((.cse5 (= ~waterLevel~0 1)) (.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (and (not .cse2) .cse14 .cse12 .cse8 .cse13)) (.cse7 (and .cse11 .cse14 .cse12 .cse10 .cse8 .cse13)) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (and .cse11 .cse9 .cse12 .cse8 (or (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) (< 0 |old(~waterLevel~0)|)) .cse10) .cse13))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse2 .cse3 .cse5 .cse6 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 .cse1 .cse7 (and (not .cse5) .cse8) .cse3) (or .cse0 .cse9 .cse1 (= ~methaneLevelCritical~0 0) .cse3) (or (and .cse9 .cse10 (or (<= 1 ~methaneLevelCritical~0) (<= (+ ~methaneLevelCritical~0 1) 0) (= ~pumpRunning~0 1))) .cse1 .cse7 .cse3 .cse6 .cse4))))) [2022-11-03 01:52:01,022 INFO L895 garLoopResultBuilder]: At program point L596-1(lines 581 613) the Hoare annotation is: (let ((.cse5 (= |old(~pumpRunning~0)| 0)) (.cse6 (= 0 ~systemActive~0))) (let ((.cse4 (not .cse6)) (.cse0 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse3 (= ~pumpRunning~0 0)) (.cse10 (<= ~waterLevel~0 1)) (.cse2 (not .cse5)) (.cse1 (= ~waterLevel~0 1)) (.cse9 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= |old(~waterLevel~0)| 2)))) (and (or (and .cse0 .cse1) (and .cse2 .cse3 .cse1 .cse4) (< |old(~waterLevel~0)| 2) .cse5 .cse6 .cse7) (or (not .cse3) (= ~methaneLevelCritical~0 0) .cse6 .cse7 (not (= |timeShift___utac_acc__Specification3_spec__1_~tmp~8#1| 0)) (and .cse2 .cse3 .cse4)) (or (not (<= |old(~waterLevel~0)| 1)) .cse5 .cse6 (and .cse0 (let ((.cse8 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse8) .cse9) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse8)))) (and .cse3 .cse10)) (or (and .cse3 .cse10 .cse9) .cse2 (and (not .cse1) .cse9 (or (<= 1 ~methaneLevelCritical~0) (<= (+ ~methaneLevelCritical~0 1) 0) (= ~pumpRunning~0 1))) .cse6 .cse7)))) [2022-11-03 01:52:01,022 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 132 155) the Hoare annotation is: (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (= 0 ~systemActive~0) (not (<= |old(~waterLevel~0)| 2))) [2022-11-03 01:52:01,024 INFO L895 garLoopResultBuilder]: At program point L588(line 588) the Hoare annotation is: (let ((.cse7 (= |old(~pumpRunning~0)| 0))) (let ((.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (= ~pumpRunning~0 |old(~pumpRunning~0)|)) (.cse9 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not .cse7)) (.cse8 (= ~pumpRunning~0 0)) (.cse6 (= ~waterLevel~0 1)) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (or (<= 1 ~methaneLevelCritical~0) (<= (+ ~methaneLevelCritical~0 1) 0) (= ~pumpRunning~0 1))) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 (< |old(~waterLevel~0)| 2) (and .cse1 .cse2) .cse3 .cse4) (or (and .cse5 .cse6) .cse7 (and .cse8 .cse6) .cse3 .cse4 (not (<= 2 |old(~waterLevel~0)|))) (or .cse9 .cse7 .cse3 (and .cse5 (let ((.cse10 (< 0 |old(~waterLevel~0)|))) (or (and (not .cse10) .cse1) (and (= |old(~waterLevel~0)| (+ ~waterLevel~0 1)) .cse10)))) (and .cse8 (<= ~waterLevel~0 1))) (or .cse9 .cse0 (and .cse8 .cse1) (and (not .cse6) .cse1 .cse2) .cse3)))) [2022-11-03 01:52:01,024 INFO L899 garLoopResultBuilder]: For program point L588-1(line 588) no Hoare annotation was computed. [2022-11-03 01:52:01,024 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 132 155) no Hoare annotation was computed. [2022-11-03 01:52:01,024 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 477) no Hoare annotation was computed. [2022-11-03 01:52:01,025 INFO L895 garLoopResultBuilder]: At program point L110(lines 63 111) the Hoare annotation is: false [2022-11-03 01:52:01,025 INFO L899 garLoopResultBuilder]: For program point L65(lines 64 109) no Hoare annotation was computed. [2022-11-03 01:52:01,025 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-03 01:52:01,025 INFO L895 garLoopResultBuilder]: At program point L86(line 86) the Hoare annotation is: (and (= 1 ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= ~waterLevel~0 2) (= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)) [2022-11-03 01:52:01,025 INFO L895 garLoopResultBuilder]: At program point L107(lines 64 109) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse2 (= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0))) (or (and .cse0 .cse1 (<= ~waterLevel~0 2) (or (<= 1 ~methaneLevelCritical~0) (<= (+ ~methaneLevelCritical~0 1) 0) (= ~pumpRunning~0 1)) .cse2) (and .cse0 (<= ~waterLevel~0 1) .cse1 .cse2))) [2022-11-03 01:52:01,025 INFO L899 garLoopResultBuilder]: For program point L74(lines 74 80) no Hoare annotation was computed. [2022-11-03 01:52:01,026 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2022-11-03 01:52:01,026 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-03 01:52:01,026 INFO L895 garLoopResultBuilder]: At program point L100-2(lines 94 105) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0) (<= ~waterLevel~0 2) (= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)) [2022-11-03 01:52:01,026 INFO L895 garLoopResultBuilder]: At program point L567(lines 567 574) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (<= ~methaneLevelCritical~0 0) (<= 0 ~methaneLevelCritical~0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)) [2022-11-03 01:52:01,027 INFO L902 garLoopResultBuilder]: At program point L567-2(lines 567 574) the Hoare annotation is: true [2022-11-03 01:52:01,027 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 90) no Hoare annotation was computed. [2022-11-03 01:52:01,027 INFO L899 garLoopResultBuilder]: For program point L84-1(lines 84 90) no Hoare annotation was computed. [2022-11-03 01:52:01,027 INFO L902 garLoopResultBuilder]: At program point L113(lines 54 117) the Hoare annotation is: true [2022-11-03 01:52:01,027 INFO L895 garLoopResultBuilder]: At program point L76(line 76) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2)) (.cse2 (= |ULTIMATE.start_main_~tmp~7#1| ~systemActive~0)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 1) .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) .cse1 .cse4 .cse2) (and .cse0 (or (not (= ~methaneLevelCritical~0 0)) (= ~pumpRunning~0 1)) .cse1 .cse4 .cse2 .cse3))) [2022-11-03 01:52:01,028 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 164 188) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,029 INFO L895 garLoopResultBuilder]: At program point L254(line 254) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse1 (<= ~waterLevel~0 1)) (.cse0 (= 0 ~systemActive~0))) (and (or (not (= ~waterLevel~0 1)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) (and (or .cse1 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 1)) .cse2) .cse0) (or (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2 (<= 0 |processEnvironment__wrappee__highWaterSensor_~tmp~1#1|)) (not .cse1) .cse0))) [2022-11-03 01:52:01,030 INFO L895 garLoopResultBuilder]: At program point L254-1(line 254) the Hoare annotation is: (let ((.cse2 (not (<= ~waterLevel~0 1))) (.cse4 (= |old(~pumpRunning~0)| 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 |processEnvironment__wrappee__highWaterSensor_activatePump_#t~ret11#1|)) (.cse3 (= 0 ~systemActive~0))) (and (or (and .cse0 (<= 0 |processEnvironment__wrappee__highWaterSensor_~tmp~1#1|) .cse1) .cse2 .cse3) (or .cse4 .cse2 .cse3) (or (not .cse4) (not (<= ~waterLevel~0 2)) (< ~waterLevel~0 2) .cse3 (and .cse0 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 1) .cse1)) (or (not (= ~waterLevel~0 1)) .cse3))) [2022-11-03 01:52:01,030 INFO L895 garLoopResultBuilder]: At program point L178(line 178) the Hoare annotation is: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse2 (= 0 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 1))) (and (or .cse0 (not .cse1) .cse2) (or (not .cse0) (not (<= ~waterLevel~0 2)) .cse2 (and (= ~pumpRunning~0 0) .cse1 (<= 0 |processEnvironment__wrappee__highWaterSensor_~tmp~1#1|) (or (not (= ~waterLevel~0 1)) (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0)))))) [2022-11-03 01:52:01,030 INFO L899 garLoopResultBuilder]: For program point L172(lines 172 180) no Hoare annotation was computed. [2022-11-03 01:52:01,030 INFO L895 garLoopResultBuilder]: At program point L168(lines 168 185) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,030 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 164 188) no Hoare annotation was computed. [2022-11-03 01:52:01,031 INFO L895 garLoopResultBuilder]: At program point L183(line 183) the Hoare annotation is: (let ((.cse0 (= 0 ~systemActive~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (not (<= ~waterLevel~0 2)) .cse0) (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (<= ~waterLevel~0 1)) .cse0))) [2022-11-03 01:52:01,031 INFO L899 garLoopResultBuilder]: For program point L183-1(lines 164 188) no Hoare annotation was computed. [2022-11-03 01:52:01,031 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 384 395) no Hoare annotation was computed. [2022-11-03 01:52:01,031 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 384 395) the Hoare annotation is: (let ((.cse2 (not (<= |old(~waterLevel~0)| 2))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (= 0 ~systemActive~0))) (and (or (and (not (<= (+ ~methaneLevelCritical~0 1) 0)) (not (<= 1 ~methaneLevelCritical~0)) (not (= ~pumpRunning~0 1))) .cse0 .cse1 .cse2) (or (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2) (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1))) [2022-11-03 01:52:01,031 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 274 284) the Hoare annotation is: true [2022-11-03 01:52:01,032 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 274 284) no Hoare annotation was computed. [2022-11-03 01:52:01,032 INFO L902 garLoopResultBuilder]: At program point L279(line 279) the Hoare annotation is: true [2022-11-03 01:52:01,033 INFO L899 garLoopResultBuilder]: For program point L279-1(line 279) no Hoare annotation was computed. [2022-11-03 01:52:01,036 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-03 01:52:01,038 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-03 01:52:01,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 01:52:01 BoogieIcfgContainer [2022-11-03 01:52:01,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-03 01:52:01,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-03 01:52:01,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-03 01:52:01,070 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-03 01:52:01,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 01:49:10" (3/4) ... [2022-11-03 01:52:01,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-03 01:52:01,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-03 01:52:01,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-03 01:52:01,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-03 01:52:01,079 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-03 01:52:01,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-03 01:52:01,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-03 01:52:01,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-03 01:52:01,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-03 01:52:01,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-03 01:52:01,080 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-03 01:52:01,087 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 80 nodes and edges [2022-11-03 01:52:01,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2022-11-03 01:52:01,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2022-11-03 01:52:01,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-03 01:52:01,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-03 01:52:01,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:52:01,090 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-03 01:52:01,114 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) || 0 == systemActive) || !(\old(waterLevel) <= 2) [2022-11-03 01:52:01,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || \old(waterLevel) < 2) || (\old(waterLevel) == waterLevel && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((((pumpRunning == \old(pumpRunning) && waterLevel == 1) || \old(pumpRunning) == 0) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || \old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || (pumpRunning == 0 && waterLevel <= 1))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((!(waterLevel == 1) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || 0 == systemActive) [2022-11-03 01:52:01,115 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel <= 1)) || 0 == systemActive) [2022-11-03 01:52:01,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel <= 1)) || 0 == systemActive) [2022-11-03 01:52:01,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(waterLevel) <= 1) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && !(0 == systemActive))) || \old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && !(0 == systemActive))) || 0 == systemActive) && (((((((pumpRunning == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && !(0 == systemActive))) || ((!(waterLevel == 1) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((\old(pumpRunning) == 0 || 0 == systemActive) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(pumpRunning == 0)) || methaneLevelCritical == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(tmp == 0)) [2022-11-03 01:52:01,116 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((pumpRunning == \old(pumpRunning) && waterLevel == 1) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel == 1) && !(0 == systemActive))) || \old(waterLevel) < 2) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((((!(pumpRunning == 0) || methaneLevelCritical == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(tmp == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && !(0 == systemActive)))) && ((((!(\old(waterLevel) <= 1) || \old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || (pumpRunning == 0 && waterLevel <= 1))) && ((((((pumpRunning == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || ((!(waterLevel == 1) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) [2022-11-03 01:52:01,117 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((pumpRunning == 0 && 0 <= tmp) && methaneLevelCritical == aux-isMethaneAlarm()-aux) || !(waterLevel <= 1)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(waterLevel <= 1)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(waterLevel <= 2)) || waterLevel < 2) || 0 == systemActive) || ((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == aux-isMethaneAlarm()-aux))) && (!(waterLevel == 1) || 0 == systemActive) [2022-11-03 01:52:01,117 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(waterLevel) <= 1) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || \old(pumpRunning) == 0) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && tmp___0 <= 1) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && !(0 == systemActive))) && ((((\old(pumpRunning) == 0 || 0 == systemActive) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && tmp___0 <= 1) && !(0 == systemActive))) || (!(waterLevel == 1) && tmp___0 <= 1)) || 0 == systemActive)) && ((((!(\old(waterLevel) <= 1) || !(pumpRunning == 0)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || methaneLevelCritical == 0) || 0 == systemActive)) && (((((((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && tmp___0 <= 1) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && tmp___0 <= 1) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && !(0 == systemActive))) [2022-11-03 01:52:01,118 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 0 == systemActive || !(\old(waterLevel) <= 2) [2022-11-03 01:52:01,141 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/witness.graphml [2022-11-03 01:52:01,142 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-03 01:52:01,142 INFO L158 Benchmark]: Toolchain (without parser) took 172420.37ms. Allocated memory was 107.0MB in the beginning and 847.2MB in the end (delta: 740.3MB). Free memory was 72.7MB in the beginning and 589.5MB in the end (delta: -516.8MB). Peak memory consumption was 223.1MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,143 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-03 01:52:01,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.43ms. Allocated memory is still 107.0MB. Free memory was 72.5MB in the beginning and 73.5MB in the end (delta: -999.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.60ms. Allocated memory is still 107.0MB. Free memory was 73.5MB in the beginning and 70.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,144 INFO L158 Benchmark]: Boogie Preprocessor took 28.70ms. Allocated memory is still 107.0MB. Free memory was 70.9MB in the beginning and 69.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,144 INFO L158 Benchmark]: RCFGBuilder took 840.66ms. Allocated memory is still 107.0MB. Free memory was 69.3MB in the beginning and 80.1MB in the end (delta: -10.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,144 INFO L158 Benchmark]: TraceAbstraction took 170869.84ms. Allocated memory was 107.0MB in the beginning and 847.2MB in the end (delta: 740.3MB). Free memory was 79.5MB in the beginning and 595.8MB in the end (delta: -516.3MB). Peak memory consumption was 531.2MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,145 INFO L158 Benchmark]: Witness Printer took 71.81ms. Allocated memory is still 847.2MB. Free memory was 595.8MB in the beginning and 589.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-03 01:52:01,146 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 79.7MB. Free memory was 55.1MB in the beginning and 55.1MB in the end (delta: 29.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.43ms. Allocated memory is still 107.0MB. Free memory was 72.5MB in the beginning and 73.5MB in the end (delta: -999.2kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.60ms. Allocated memory is still 107.0MB. Free memory was 73.5MB in the beginning and 70.9MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.70ms. Allocated memory is still 107.0MB. Free memory was 70.9MB in the beginning and 69.3MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 840.66ms. Allocated memory is still 107.0MB. Free memory was 69.3MB in the beginning and 80.1MB in the end (delta: -10.8MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * TraceAbstraction took 170869.84ms. Allocated memory was 107.0MB in the beginning and 847.2MB in the end (delta: 740.3MB). Free memory was 79.5MB in the beginning and 595.8MB in the end (delta: -516.3MB). Peak memory consumption was 531.2MB. Max. memory is 16.1GB. * Witness Printer took 71.81ms. Allocated memory is still 847.2MB. Free memory was 595.8MB in the beginning and 589.5MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 477]: 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, 75 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 170.7s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 29.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3528 SdHoareTripleChecker+Valid, 5.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3460 mSDsluCounter, 4851 SdHoareTripleChecker+Invalid, 4.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4449 mSDsCounter, 2137 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6346 IncrementalHoareTripleChecker+Invalid, 8483 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2137 mSolverCounterUnsat, 1061 mSDtfsCounter, 6346 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 729 GetRequests, 401 SyntacticMatches, 25 SemanticMatches, 303 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9875 ImplicationChecksByTransitivity, 106.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2682occurred in iteration=10, InterpolantAutomatonStates: 216, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 11 MinimizatonAttempts, 983 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 43 LocationsWithAnnotation, 5286 PreInvPairs, 6481 NumberOfFragments, 1792 HoareAnnotationTreeSize, 5286 FomulaSimplifications, 67913 FormulaSimplificationTreeSizeReduction, 6.0s HoareSimplificationTime, 43 FomulaSimplificationsInter, 316836 FormulaSimplificationTreeSizeReductionInter, 22.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 684 NumberOfCodeBlocks, 684 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 787 ConstructedInterpolants, 0 QuantifiedInterpolants, 3108 SizeOfPredicates, 35 NumberOfNonLiveVariables, 1305 ConjunctsInSsa, 69 ConjunctsInUnsatCore, 16 InterpolantComputations, 9 PerfectInterpolantSequences, 151/202 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: 254]: Loop Invariant Derived loop invariant: ((((((pumpRunning == 0 && 0 <= tmp) && methaneLevelCritical == aux-isMethaneAlarm()-aux) || !(waterLevel <= 1)) || 0 == systemActive) && ((\old(pumpRunning) == 0 || !(waterLevel <= 1)) || 0 == systemActive)) && ((((!(\old(pumpRunning) == 0) || !(waterLevel <= 2)) || waterLevel < 2) || 0 == systemActive) || ((pumpRunning == 0 && tmp == 1) && methaneLevelCritical == aux-isMethaneAlarm()-aux))) && (!(waterLevel == 1) || 0 == systemActive) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 483]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || \old(waterLevel) < 2) || (\old(waterLevel) == waterLevel && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && ((((((pumpRunning == \old(pumpRunning) && waterLevel == 1) || \old(pumpRunning) == 0) || (pumpRunning == 0 && waterLevel == 1)) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || \old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || (pumpRunning == 0 && waterLevel <= 1))) && ((((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || ((!(waterLevel == 1) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || 0 == systemActive) - InvariantResult [Line: 493]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 194]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel <= 1)) || 0 == systemActive) - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: ((pumpRunning == \old(pumpRunning) && \old(waterLevel) == waterLevel) || 0 == systemActive) || !(\old(waterLevel) <= 2) - InvariantResult [Line: 477]: Loop Invariant Derived loop invariant: 0 == systemActive || !(\old(waterLevel) <= 2) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: ((((tmp == 1 && splverifierCounter == 0) && waterLevel <= 2) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1)) && tmp == systemActive) || (((tmp == 1 && waterLevel <= 1) && splverifierCounter == 0) && tmp == systemActive) - InvariantResult [Line: 596]: Loop Invariant Derived loop invariant: (((((((!(\old(waterLevel) <= 1) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || \old(pumpRunning) == 0) || 0 == systemActive) || (((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && tmp___0 <= 1) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && !(0 == systemActive))) && ((((\old(pumpRunning) == 0 || 0 == systemActive) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((!(\old(waterLevel) <= 1) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && tmp___0 <= 1) && !(0 == systemActive))) || (!(waterLevel == 1) && tmp___0 <= 1)) || 0 == systemActive)) && ((((!(\old(waterLevel) <= 1) || !(pumpRunning == 0)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || methaneLevelCritical == 0) || 0 == systemActive)) && (((((((!(pumpRunning == 0) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1)) || ((((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && tmp___0 <= 1) && !(0 == systemActive))) || (((((pumpRunning == \old(pumpRunning) && pumpRunning == 0) && waterLevel <= 1) && \old(waterLevel) == waterLevel) && tmp___0 <= 1) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || (((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && tmp___0 <= 1) && ((\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)) || \old(waterLevel) == waterLevel)) && !(0 == systemActive))) - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && 1 == systemActive) && methaneLevelCritical <= 0) && 0 <= methaneLevelCritical) && waterLevel == 1) && tmp == systemActive - InvariantResult [Line: 590]: Loop Invariant Derived loop invariant: ((((((!(\old(waterLevel) <= 1) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && !(0 == systemActive))) || \old(pumpRunning) == 0) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && !(0 == systemActive))) || 0 == systemActive) && (((((((pumpRunning == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel <= 1) && !(0 == systemActive))) || ((!(waterLevel == 1) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || ((((pumpRunning == \old(pumpRunning) && !(pumpRunning == 0)) && waterLevel <= 1) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel)))) && !(0 == systemActive))) || 0 == systemActive) || !(\old(waterLevel) <= 2))) && ((((\old(pumpRunning) == 0 || 0 == systemActive) || waterLevel == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((((!(\old(pumpRunning) == 0) || !(pumpRunning == 0)) || methaneLevelCritical == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(tmp == 0)) - InvariantResult [Line: 581]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == \old(pumpRunning) && waterLevel == 1) || (((!(\old(pumpRunning) == 0) && pumpRunning == 0) && waterLevel == 1) && !(0 == systemActive))) || \old(waterLevel) < 2) || \old(pumpRunning) == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) && (((((!(pumpRunning == 0) || methaneLevelCritical == 0) || 0 == systemActive) || !(\old(waterLevel) <= 2)) || !(tmp == 0)) || ((!(\old(pumpRunning) == 0) && pumpRunning == 0) && !(0 == systemActive)))) && ((((!(\old(waterLevel) <= 1) || \old(pumpRunning) == 0) || 0 == systemActive) || (pumpRunning == \old(pumpRunning) && ((!(0 < \old(waterLevel)) && \old(waterLevel) == waterLevel) || (\old(waterLevel) == waterLevel + 1 && 0 < \old(waterLevel))))) || (pumpRunning == 0 && waterLevel <= 1))) && ((((((pumpRunning == 0 && waterLevel <= 1) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || ((!(waterLevel == 1) && \old(waterLevel) == waterLevel) && ((1 <= methaneLevelCritical || methaneLevelCritical + 1 <= 0) || pumpRunning == 1))) || 0 == systemActive) || !(\old(waterLevel) <= 2)) - InvariantResult [Line: 168]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(waterLevel <= 2)) || 0 == systemActive) && ((pumpRunning == \old(pumpRunning) || !(waterLevel <= 1)) || 0 == systemActive) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-03 01:52:01,211 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d3307ffc-7071-4c00-ac7a-549f326bd400/bin/utaipan-7li7fVZpFI/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE