./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 13:40:18,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 13:40:18,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 13:40:18,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 13:40:18,324 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 13:40:18,325 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 13:40:18,327 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 13:40:18,328 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 13:40:18,330 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 13:40:18,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 13:40:18,332 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 13:40:18,333 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 13:40:18,342 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 13:40:18,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 13:40:18,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 13:40:18,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 13:40:18,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 13:40:18,354 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 13:40:18,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 13:40:18,370 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 13:40:18,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 13:40:18,375 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 13:40:18,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 13:40:18,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 13:40:18,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 13:40:18,381 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 13:40:18,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 13:40:18,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 13:40:18,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 13:40:18,383 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 13:40:18,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 13:40:18,384 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 13:40:18,385 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 13:40:18,386 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 13:40:18,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 13:40:18,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 13:40:18,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 13:40:18,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 13:40:18,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 13:40:18,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 13:40:18,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 13:40:18,398 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 13:40:18,441 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 13:40:18,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 13:40:18,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 13:40:18,441 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 13:40:18,442 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 13:40:18,442 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 13:40:18,442 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 13:40:18,443 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 13:40:18,443 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 13:40:18,443 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 13:40:18,443 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 13:40:18,443 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 13:40:18,444 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 13:40:18,444 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 13:40:18,444 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 13:40:18,444 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 13:40:18,444 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 13:40:18,444 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 13:40:18,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 13:40:18,445 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 13:40:18,445 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 13:40:18,446 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 13:40:18,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 13:40:18,446 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 13:40:18,446 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 13:40:18,446 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 13:40:18,447 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 13:40:18,447 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 13:40:18,447 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 13:40:18,447 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 13:40:18,447 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 13:40:18,447 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 13:40:18,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:40:18,448 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 13:40:18,448 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 13:40:18,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 13:40:18,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 13:40:18,449 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 13:40:18,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 13:40:18,449 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 13:40:18,449 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 13:40:18,449 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_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> aad1ec08d8a193b38b6e11f9698a2d5cafe1e5bac6d0d3a9987fa93ed6006219 [2022-11-23 13:40:18,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 13:40:18,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 13:40:18,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 13:40:18,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 13:40:18,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 13:40:18,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2022-11-23 13:40:21,818 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 13:40:22,143 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 13:40:22,144 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c [2022-11-23 13:40:22,155 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/data/5a5a53c5b/9348b1af9f4244b88b1d780db9f9b4e1/FLAG537486412 [2022-11-23 13:40:22,169 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/data/5a5a53c5b/9348b1af9f4244b88b1d780db9f9b4e1 [2022-11-23 13:40:22,172 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 13:40:22,174 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 13:40:22,175 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 13:40:22,175 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 13:40:22,179 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 13:40:22,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e6b351e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22, skipping insertion in model container [2022-11-23 13:40:22,184 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 13:40:22,253 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 13:40:22,498 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2022-11-23 13:40:22,613 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:40:22,628 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 13:40:22,671 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/sv-benchmarks/c/product-lines/minepump_spec2_product37.cil.c[7021,7034] [2022-11-23 13:40:22,731 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 13:40:22,748 INFO L208 MainTranslator]: Completed translation [2022-11-23 13:40:22,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22 WrapperNode [2022-11-23 13:40:22,749 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 13:40:22,750 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 13:40:22,750 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 13:40:22,750 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 13:40:22,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,821 INFO L138 Inliner]: procedures = 54, calls = 98, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 191 [2022-11-23 13:40:22,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 13:40:22,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 13:40:22,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 13:40:22,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 13:40:22,832 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,855 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,856 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 13:40:22,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 13:40:22,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 13:40:22,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 13:40:22,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (1/1) ... [2022-11-23 13:40:22,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 13:40:22,881 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:22,894 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 13:40:22,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 13:40:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 13:40:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 13:40:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 13:40:22,941 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 13:40:22,941 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 13:40:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-23 13:40:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-23 13:40:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 13:40:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 13:40:22,942 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 13:40:22,942 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 13:40:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 13:40:22,943 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 13:40:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 13:40:22,943 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 13:40:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 13:40:22,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 13:40:22,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 13:40:23,084 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 13:40:23,086 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 13:40:23,445 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 13:40:23,566 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 13:40:23,566 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 13:40:23,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:23 BoogieIcfgContainer [2022-11-23 13:40:23,569 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 13:40:23,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 13:40:23,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 13:40:23,578 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 13:40:23,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:40:22" (1/3) ... [2022-11-23 13:40:23,579 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43deb488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:40:23, skipping insertion in model container [2022-11-23 13:40:23,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:40:22" (2/3) ... [2022-11-23 13:40:23,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43deb488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:40:23, skipping insertion in model container [2022-11-23 13:40:23,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:23" (3/3) ... [2022-11-23 13:40:23,581 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product37.cil.c [2022-11-23 13:40:23,601 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 13:40:23,601 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 13:40:23,677 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 13:40:23,683 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;@333df8db, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 13:40:23,684 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 13:40:23,687 INFO L276 IsEmpty]: Start isEmpty. Operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) [2022-11-23 13:40:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-23 13:40:23,695 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:23,696 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:23,696 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:23,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1102543177, now seen corresponding path program 1 times [2022-11-23 13:40:23,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:23,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278890617] [2022-11-23 13:40:23,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:23,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:23,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:23,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:23,894 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:23,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278890617] [2022-11-23 13:40:23,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278890617] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:23,896 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:23,896 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 13:40:23,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325455937] [2022-11-23 13:40:23,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:23,902 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 13:40:23,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:23,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 13:40:23,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:40:23,961 INFO L87 Difference]: Start difference. First operand has 58 states, 37 states have (on average 1.4324324324324325) internal successors, (53), 45 states have internal predecessors, (53), 12 states have call successors, (12), 7 states have call predecessors, (12), 7 states have return successors, (12), 10 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:24,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:24,024 INFO L93 Difference]: Finished difference Result 114 states and 155 transitions. [2022-11-23 13:40:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 13:40:24,027 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-23 13:40:24,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:24,040 INFO L225 Difference]: With dead ends: 114 [2022-11-23 13:40:24,040 INFO L226 Difference]: Without dead ends: 53 [2022-11-23 13:40:24,045 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 13:40:24,051 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:24,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 57 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:24,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-11-23 13:40:24,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 53. [2022-11-23 13:40:24,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 34 states have (on average 1.3235294117647058) internal successors, (45), 41 states have internal predecessors, (45), 12 states have call successors, (12), 7 states have call predecessors, (12), 6 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-23 13:40:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 68 transitions. [2022-11-23 13:40:24,104 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 68 transitions. Word has length 17 [2022-11-23 13:40:24,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:24,105 INFO L495 AbstractCegarLoop]: Abstraction has 53 states and 68 transitions. [2022-11-23 13:40:24,105 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:24,105 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 68 transitions. [2022-11-23 13:40:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-23 13:40:24,107 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:24,107 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:24,108 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 13:40:24,108 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:24,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:24,109 INFO L85 PathProgramCache]: Analyzing trace with hash 561625036, now seen corresponding path program 1 times [2022-11-23 13:40:24,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:24,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822977115] [2022-11-23 13:40:24,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:24,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:24,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:24,253 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:24,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822977115] [2022-11-23 13:40:24,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822977115] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:24,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:24,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:40:24,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085065837] [2022-11-23 13:40:24,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:24,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:24,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:24,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:24,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:24,257 INFO L87 Difference]: Start difference. First operand 53 states and 68 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:24,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:24,303 INFO L93 Difference]: Finished difference Result 83 states and 107 transitions. [2022-11-23 13:40:24,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:24,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-23 13:40:24,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:24,308 INFO L225 Difference]: With dead ends: 83 [2022-11-23 13:40:24,309 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 13:40:24,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:24,313 INFO L413 NwaCegarLoop]: 43 mSDtfsCounter, 7 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:24,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 77 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:24,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 13:40:24,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 13:40:24,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3448275862068966) internal successors, (39), 36 states have internal predecessors, (39), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 13:40:24,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 57 transitions. [2022-11-23 13:40:24,329 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 57 transitions. Word has length 18 [2022-11-23 13:40:24,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:24,329 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 57 transitions. [2022-11-23 13:40:24,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:24,330 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 57 transitions. [2022-11-23 13:40:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-23 13:40:24,332 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:24,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:24,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 13:40:24,333 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:24,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:24,339 INFO L85 PathProgramCache]: Analyzing trace with hash 709832789, now seen corresponding path program 1 times [2022-11-23 13:40:24,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:24,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613128809] [2022-11-23 13:40:24,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:24,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:24,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:24,433 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:24,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613128809] [2022-11-23 13:40:24,434 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613128809] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:24,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:24,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:40:24,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046068549] [2022-11-23 13:40:24,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:24,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:24,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:24,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:24,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:24,436 INFO L87 Difference]: Start difference. First operand 45 states and 57 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:24,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:24,472 INFO L93 Difference]: Finished difference Result 88 states and 113 transitions. [2022-11-23 13:40:24,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:24,473 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 20 [2022-11-23 13:40:24,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:24,474 INFO L225 Difference]: With dead ends: 88 [2022-11-23 13:40:24,474 INFO L226 Difference]: Without dead ends: 45 [2022-11-23 13:40:24,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:24,476 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 46 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:24,477 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 41 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:24,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-11-23 13:40:24,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 45. [2022-11-23 13:40:24,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.3103448275862069) internal successors, (38), 36 states have internal predecessors, (38), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 13:40:24,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 56 transitions. [2022-11-23 13:40:24,485 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 56 transitions. Word has length 20 [2022-11-23 13:40:24,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:24,486 INFO L495 AbstractCegarLoop]: Abstraction has 45 states and 56 transitions. [2022-11-23 13:40:24,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-23 13:40:24,486 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 56 transitions. [2022-11-23 13:40:24,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 13:40:24,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:24,487 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] [2022-11-23 13:40:24,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 13:40:24,488 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:24,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:24,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1315618053, now seen corresponding path program 1 times [2022-11-23 13:40:24,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:24,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084082881] [2022-11-23 13:40:24,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:24,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:24,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:24,673 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 13:40:24,674 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:24,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084082881] [2022-11-23 13:40:24,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084082881] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:40:24,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920690556] [2022-11-23 13:40:24,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:24,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:24,675 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:24,682 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:40:24,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 13:40:24,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:24,833 INFO L263 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-23 13:40:24,839 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:40:24,908 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 13:40:24,908 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:40:24,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920690556] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:24,909 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:40:24,909 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2022-11-23 13:40:24,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [610242745] [2022-11-23 13:40:24,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:24,914 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:24,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:24,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:24,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:40:24,917 INFO L87 Difference]: Start difference. First operand 45 states and 56 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:25,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:25,019 INFO L93 Difference]: Finished difference Result 123 states and 156 transitions. [2022-11-23 13:40:25,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:25,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2022-11-23 13:40:25,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:25,023 INFO L225 Difference]: With dead ends: 123 [2022-11-23 13:40:25,025 INFO L226 Difference]: Without dead ends: 80 [2022-11-23 13:40:25,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-23 13:40:25,029 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 35 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:25,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 96 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:25,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-23 13:40:25,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 78. [2022-11-23 13:40:25,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 52 states have (on average 1.2692307692307692) internal successors, (66), 59 states have internal predecessors, (66), 13 states have call successors, (13), 12 states have call predecessors, (13), 12 states have return successors, (17), 13 states have call predecessors, (17), 13 states have call successors, (17) [2022-11-23 13:40:25,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 96 transitions. [2022-11-23 13:40:25,053 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 96 transitions. Word has length 27 [2022-11-23 13:40:25,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:25,053 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 96 transitions. [2022-11-23 13:40:25,054 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:25,054 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 96 transitions. [2022-11-23 13:40:25,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-11-23 13:40:25,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:25,056 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] [2022-11-23 13:40:25,062 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-23 13:40:25,262 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:25,262 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:25,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:25,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1468313323, now seen corresponding path program 1 times [2022-11-23 13:40:25,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:25,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098091860] [2022-11-23 13:40:25,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:25,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:25,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:25,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:25,421 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:25,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098091860] [2022-11-23 13:40:25,422 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098091860] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:25,422 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:25,427 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 13:40:25,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633905249] [2022-11-23 13:40:25,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:25,428 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 13:40:25,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:25,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 13:40:25,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 13:40:25,430 INFO L87 Difference]: Start difference. First operand 78 states and 96 transitions. Second operand has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:25,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:25,586 INFO L93 Difference]: Finished difference Result 226 states and 285 transitions. [2022-11-23 13:40:25,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 13:40:25,587 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2022-11-23 13:40:25,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:25,589 INFO L225 Difference]: With dead ends: 226 [2022-11-23 13:40:25,589 INFO L226 Difference]: Without dead ends: 150 [2022-11-23 13:40:25,590 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 13:40:25,591 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 33 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:25,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 214 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:25,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2022-11-23 13:40:25,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 142. [2022-11-23 13:40:25,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 95 states have (on average 1.231578947368421) internal successors, (117), 106 states have internal predecessors, (117), 24 states have call successors, (24), 22 states have call predecessors, (24), 22 states have return successors, (32), 24 states have call predecessors, (32), 24 states have call successors, (32) [2022-11-23 13:40:25,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 173 transitions. [2022-11-23 13:40:25,614 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 173 transitions. Word has length 28 [2022-11-23 13:40:25,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:25,615 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 173 transitions. [2022-11-23 13:40:25,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 13:40:25,615 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 173 transitions. [2022-11-23 13:40:25,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-23 13:40:25,616 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:25,616 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] [2022-11-23 13:40:25,617 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 13:40:25,617 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:25,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:25,618 INFO L85 PathProgramCache]: Analyzing trace with hash 1270935420, now seen corresponding path program 1 times [2022-11-23 13:40:25,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:25,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34366953] [2022-11-23 13:40:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:25,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:25,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:25,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:25,913 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:25,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34366953] [2022-11-23 13:40:25,914 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34366953] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:25,914 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:25,915 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 13:40:25,915 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042871370] [2022-11-23 13:40:25,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:25,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 13:40:25,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:25,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 13:40:25,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-23 13:40:25,917 INFO L87 Difference]: Start difference. First operand 142 states and 173 transitions. Second operand has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 13:40:26,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:26,317 INFO L93 Difference]: Finished difference Result 501 states and 624 transitions. [2022-11-23 13:40:26,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-23 13:40:26,318 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (4), 2 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 [2022-11-23 13:40:26,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:26,326 INFO L225 Difference]: With dead ends: 501 [2022-11-23 13:40:26,326 INFO L226 Difference]: Without dead ends: 361 [2022-11-23 13:40:26,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-11-23 13:40:26,336 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 200 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 280 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 245 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:26,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 245 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 280 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 13:40:26,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2022-11-23 13:40:26,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 317. [2022-11-23 13:40:26,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 218 states have (on average 1.2064220183486238) internal successors, (263), 230 states have internal predecessors, (263), 49 states have call successors, (49), 47 states have call predecessors, (49), 49 states have return successors, (65), 51 states have call predecessors, (65), 49 states have call successors, (65) [2022-11-23 13:40:26,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 377 transitions. [2022-11-23 13:40:26,424 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 377 transitions. Word has length 31 [2022-11-23 13:40:26,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:26,424 INFO L495 AbstractCegarLoop]: Abstraction has 317 states and 377 transitions. [2022-11-23 13:40:26,425 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.4285714285714284) internal successors, (24), 8 states have internal predecessors, (24), 3 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 13:40:26,425 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 377 transitions. [2022-11-23 13:40:26,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-23 13:40:26,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:26,455 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] [2022-11-23 13:40:26,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-23 13:40:26,455 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:26,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:26,456 INFO L85 PathProgramCache]: Analyzing trace with hash -334915798, now seen corresponding path program 1 times [2022-11-23 13:40:26,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:26,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822963388] [2022-11-23 13:40:26,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:26,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:26,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:26,521 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:26,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822963388] [2022-11-23 13:40:26,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822963388] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:26,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:26,522 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 13:40:26,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650742668] [2022-11-23 13:40:26,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:26,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 13:40:26,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:26,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 13:40:26,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:26,524 INFO L87 Difference]: Start difference. First operand 317 states and 377 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 13:40:26,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:26,638 INFO L93 Difference]: Finished difference Result 488 states and 607 transitions. [2022-11-23 13:40:26,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 13:40:26,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34 [2022-11-23 13:40:26,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:26,642 INFO L225 Difference]: With dead ends: 488 [2022-11-23 13:40:26,642 INFO L226 Difference]: Without dead ends: 486 [2022-11-23 13:40:26,643 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 13:40:26,643 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 31 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:26,644 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 89 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 13:40:26,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2022-11-23 13:40:26,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 486. [2022-11-23 13:40:26,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 486 states, 333 states have (on average 1.2102102102102101) internal successors, (403), 353 states have internal predecessors, (403), 76 states have call successors, (76), 73 states have call predecessors, (76), 76 states have return successors, (122), 79 states have call predecessors, (122), 76 states have call successors, (122) [2022-11-23 13:40:26,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 486 states to 486 states and 601 transitions. [2022-11-23 13:40:26,703 INFO L78 Accepts]: Start accepts. Automaton has 486 states and 601 transitions. Word has length 34 [2022-11-23 13:40:26,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:26,704 INFO L495 AbstractCegarLoop]: Abstraction has 486 states and 601 transitions. [2022-11-23 13:40:26,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2022-11-23 13:40:26,704 INFO L276 IsEmpty]: Start isEmpty. Operand 486 states and 601 transitions. [2022-11-23 13:40:26,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2022-11-23 13:40:26,706 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:26,706 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:26,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-23 13:40:26,707 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:26,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:26,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1678230055, now seen corresponding path program 1 times [2022-11-23 13:40:26,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:26,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223226861] [2022-11-23 13:40:26,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:26,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:26,850 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-11-23 13:40:26,851 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:26,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223226861] [2022-11-23 13:40:26,851 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223226861] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:26,851 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 13:40:26,851 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 13:40:26,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535918666] [2022-11-23 13:40:26,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:26,852 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 13:40:26,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:26,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 13:40:26,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 13:40:26,853 INFO L87 Difference]: Start difference. First operand 486 states and 601 transitions. Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 13:40:26,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:26,996 INFO L93 Difference]: Finished difference Result 765 states and 969 transitions. [2022-11-23 13:40:26,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 13:40:26,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 60 [2022-11-23 13:40:26,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:27,001 INFO L225 Difference]: With dead ends: 765 [2022-11-23 13:40:27,001 INFO L226 Difference]: Without dead ends: 425 [2022-11-23 13:40:27,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 13:40:27,004 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 38 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:27,004 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 148 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 13:40:27,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2022-11-23 13:40:27,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 399. [2022-11-23 13:40:27,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 270 states have (on average 1.1925925925925926) internal successors, (322), 287 states have internal predecessors, (322), 64 states have call successors, (64), 61 states have call predecessors, (64), 64 states have return successors, (94), 65 states have call predecessors, (94), 64 states have call successors, (94) [2022-11-23 13:40:27,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 480 transitions. [2022-11-23 13:40:27,079 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 480 transitions. Word has length 60 [2022-11-23 13:40:27,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:27,080 INFO L495 AbstractCegarLoop]: Abstraction has 399 states and 480 transitions. [2022-11-23 13:40:27,080 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-23 13:40:27,080 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 480 transitions. [2022-11-23 13:40:27,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2022-11-23 13:40:27,084 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:27,084 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:27,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-23 13:40:27,085 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:27,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:27,086 INFO L85 PathProgramCache]: Analyzing trace with hash -549369746, now seen corresponding path program 1 times [2022-11-23 13:40:27,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:27,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242185849] [2022-11-23 13:40:27,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:27,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:27,368 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 6 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-23 13:40:27,368 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:27,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242185849] [2022-11-23 13:40:27,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242185849] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:40:27,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651041245] [2022-11-23 13:40:27,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:27,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:27,370 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:27,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:40:27,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-23 13:40:27,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:27,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 13:40:27,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:40:27,649 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 13:40:27,649 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:40:27,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651041245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:27,649 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:40:27,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 15 [2022-11-23 13:40:27,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796605735] [2022-11-23 13:40:27,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:27,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 13:40:27,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:27,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 13:40:27,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-11-23 13:40:27,653 INFO L87 Difference]: Start difference. First operand 399 states and 480 transitions. Second operand has 9 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 13:40:28,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:28,016 INFO L93 Difference]: Finished difference Result 857 states and 1083 transitions. [2022-11-23 13:40:28,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-23 13:40:28,016 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) Word has length 68 [2022-11-23 13:40:28,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:28,020 INFO L225 Difference]: With dead ends: 857 [2022-11-23 13:40:28,020 INFO L226 Difference]: Without dead ends: 604 [2022-11-23 13:40:28,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2022-11-23 13:40:28,024 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 48 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 436 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:28,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 436 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:40:28,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 604 states. [2022-11-23 13:40:28,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 604 to 575. [2022-11-23 13:40:28,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 393 states have (on average 1.173027989821883) internal successors, (461), 412 states have internal predecessors, (461), 90 states have call successors, (90), 84 states have call predecessors, (90), 91 states have return successors, (154), 91 states have call predecessors, (154), 90 states have call successors, (154) [2022-11-23 13:40:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 705 transitions. [2022-11-23 13:40:28,116 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 705 transitions. Word has length 68 [2022-11-23 13:40:28,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:28,118 INFO L495 AbstractCegarLoop]: Abstraction has 575 states and 705 transitions. [2022-11-23 13:40:28,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.0) internal successors, (49), 7 states have internal predecessors, (49), 3 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (9), 5 states have call predecessors, (9), 3 states have call successors, (9) [2022-11-23 13:40:28,119 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 705 transitions. [2022-11-23 13:40:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-23 13:40:28,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 13:40:28,122 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:28,133 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-23 13:40:28,332 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-11-23 13:40:28,333 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 13:40:28,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 13:40:28,334 INFO L85 PathProgramCache]: Analyzing trace with hash 588054015, now seen corresponding path program 1 times [2022-11-23 13:40:28,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 13:40:28,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9113980] [2022-11-23 13:40:28,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:28,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 13:40:28,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:28,651 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 6 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-11-23 13:40:28,651 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 13:40:28,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9113980] [2022-11-23 13:40:28,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9113980] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 13:40:28,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057981552] [2022-11-23 13:40:28,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 13:40:28,652 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 13:40:28,652 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 13:40:28,653 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 13:40:28,663 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-23 13:40:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 13:40:28,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-23 13:40:28,764 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 13:40:28,866 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-23 13:40:28,866 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 13:40:28,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057981552] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 13:40:28,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-23 13:40:28,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [13] total 16 [2022-11-23 13:40:28,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773800771] [2022-11-23 13:40:28,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 13:40:28,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-23 13:40:28,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 13:40:28,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-23 13:40:28,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2022-11-23 13:40:28,869 INFO L87 Difference]: Start difference. First operand 575 states and 705 transitions. Second operand has 9 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 13:40:29,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 13:40:29,219 INFO L93 Difference]: Finished difference Result 1094 states and 1359 transitions. [2022-11-23 13:40:29,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 13:40:29,221 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) Word has length 71 [2022-11-23 13:40:29,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 13:40:29,223 INFO L225 Difference]: With dead ends: 1094 [2022-11-23 13:40:29,223 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 13:40:29,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=77, Invalid=429, Unknown=0, NotChecked=0, Total=506 [2022-11-23 13:40:29,226 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 45 mSDsluCounter, 239 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 13:40:29,228 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 293 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 13:40:29,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 13:40:29,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 13:40:29,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 13:40:29,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 13:40:29,229 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 71 [2022-11-23 13:40:29,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 13:40:29,229 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 13:40:29,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (9), 4 states have call predecessors, (9), 2 states have call successors, (9) [2022-11-23 13:40:29,230 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 13:40:29,230 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 13:40:29,233 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 13:40:29,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-23 13:40:29,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-11-23 13:40:29,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 13:40:34,370 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 87 93) no Hoare annotation was computed. [2022-11-23 13:40:34,370 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 87 93) the Hoare annotation is: true [2022-11-23 13:40:34,374 INFO L895 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 373 384) the Hoare annotation is: (let ((.cse2 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or (not .cse0) .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or (and (or (= ~pumpRunning~0 0) .cse2) (or (not (= ~waterLevel~0 1)) .cse2)) .cse0 (not .cse1)))) [2022-11-23 13:40:34,374 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 373 384) no Hoare annotation was computed. [2022-11-23 13:40:34,374 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 817 846) no Hoare annotation was computed. [2022-11-23 13:40:34,375 INFO L899 garLoopResultBuilder]: For program point L831(lines 831 835) no Hoare annotation was computed. [2022-11-23 13:40:34,375 INFO L902 garLoopResultBuilder]: At program point L831-1(lines 831 835) the Hoare annotation is: true [2022-11-23 13:40:34,375 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 817 846) the Hoare annotation is: true [2022-11-23 13:40:34,375 INFO L902 garLoopResultBuilder]: At program point L827-2(lines 827 841) the Hoare annotation is: true [2022-11-23 13:40:34,376 INFO L902 garLoopResultBuilder]: At program point L823(line 823) the Hoare annotation is: true [2022-11-23 13:40:34,376 INFO L899 garLoopResultBuilder]: For program point L823-1(line 823) no Hoare annotation was computed. [2022-11-23 13:40:34,376 INFO L902 garLoopResultBuilder]: At program point L842(lines 817 846) the Hoare annotation is: true [2022-11-23 13:40:34,376 INFO L899 garLoopResultBuilder]: For program point L838(line 838) no Hoare annotation was computed. [2022-11-23 13:40:34,377 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 385 393) the Hoare annotation is: true [2022-11-23 13:40:34,377 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 385 393) no Hoare annotation was computed. [2022-11-23 13:40:34,377 INFO L899 garLoopResultBuilder]: For program point L329(lines 329 335) no Hoare annotation was computed. [2022-11-23 13:40:34,380 INFO L895 garLoopResultBuilder]: At program point L135(line 135) the Hoare annotation is: (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= |old(~pumpRunning~0)| 0))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1) (or (not .cse2) .cse0 .cse1) (or .cse1 (and (= ~methaneLevelCritical~0 0) (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) (and (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2022-11-23 13:40:34,380 INFO L895 garLoopResultBuilder]: At program point L445(line 445) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0) (or .cse0 (and (not (= |old(~waterLevel~0)| 1)) (= |old(~pumpRunning~0)| 0))))) [2022-11-23 13:40:34,381 INFO L895 garLoopResultBuilder]: At program point L140(line 140) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0))) (and (or (not (= |old(~methAndRunningLastTime~0)| 0)) .cse0 (and .cse1 (= ~methAndRunningLastTime~0 0))) (or .cse0 (and .cse1 (= ~waterLevel~0 1)) (and (not (= |old(~waterLevel~0)| 1)) (= |old(~pumpRunning~0)| 0))))) [2022-11-23 13:40:34,382 INFO L895 garLoopResultBuilder]: At program point L140-1(lines 121 145) the Hoare annotation is: (let ((.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse12 (= |old(~pumpRunning~0)| 0)) (.cse9 (= ~pumpRunning~0 0)) (.cse11 (= 1 ~systemActive~0))) (let ((.cse2 (and .cse9 .cse11)) (.cse4 (not .cse12)) (.cse6 (= ~waterLevel~0 1)) (.cse3 (and .cse8 .cse12)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse1 (not .cse11)) (.cse0 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 (and (not .cse6) .cse7) .cse2) (or .cse4 .cse5 .cse8 .cse1 (and .cse7 .cse6)) (let ((.cse10 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0))) (or .cse1 (and .cse9 .cse6) (and (not .cse9) .cse10) (and (not (= |timeShift_processEnvironment_~tmp~1#1| 0)) .cse10) .cse3)) (or .cse5 .cse7 .cse1 (not .cse0))))) [2022-11-23 13:40:34,382 INFO L899 garLoopResultBuilder]: For program point L74-1(lines 74 80) no Hoare annotation was computed. [2022-11-23 13:40:34,383 INFO L895 garLoopResultBuilder]: At program point L322(line 322) the Hoare annotation is: (let ((.cse8 (not (= |old(~waterLevel~0)| 1))) (.cse12 (= |old(~pumpRunning~0)| 0)) (.cse9 (= ~pumpRunning~0 0)) (.cse11 (= 1 ~systemActive~0))) (let ((.cse2 (and .cse9 .cse11)) (.cse4 (not .cse12)) (.cse6 (= ~waterLevel~0 1)) (.cse3 (and .cse8 .cse12)) (.cse5 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse7 (= ~methAndRunningLastTime~0 0)) (.cse1 (not .cse11)) (.cse0 (= ~methaneLevelCritical~0 0))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse1 (and (not .cse6) .cse7) .cse2) (or .cse4 .cse5 .cse8 .cse1 (and .cse7 .cse6)) (let ((.cse10 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0))) (or .cse1 (and .cse9 .cse6) (and (not .cse9) .cse10) (and (not (= |timeShift_processEnvironment_~tmp~1#1| 0)) .cse10) .cse3)) (or .cse5 .cse7 .cse1 (not .cse0))))) [2022-11-23 13:40:34,383 INFO L899 garLoopResultBuilder]: For program point L322-1(line 322) no Hoare annotation was computed. [2022-11-23 13:40:34,383 INFO L899 garLoopResultBuilder]: For program point L67-1(lines 66 85) no Hoare annotation was computed. [2022-11-23 13:40:34,383 INFO L895 garLoopResultBuilder]: At program point L129(lines 129 137) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (and (not (= |old(~waterLevel~0)| 1)) .cse3))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2) (or (not .cse3) .cse0 .cse1) (or .cse1 (and (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0)) .cse2)))) [2022-11-23 13:40:34,383 INFO L899 garLoopResultBuilder]: For program point L125(lines 125 142) no Hoare annotation was computed. [2022-11-23 13:40:34,384 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 63 86) the Hoare annotation is: (let ((.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) .cse1 .cse2 .cse3) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse3) (or (not .cse1) .cse3 (= ~waterLevel~0 1) (and (not (= |old(~waterLevel~0)| 1)) .cse0)))) [2022-11-23 13:40:34,384 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 63 86) no Hoare annotation was computed. [2022-11-23 13:40:34,384 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 445) no Hoare annotation was computed. [2022-11-23 13:40:34,384 INFO L899 garLoopResultBuilder]: For program point L328(lines 328 338) no Hoare annotation was computed. [2022-11-23 13:40:34,385 INFO L895 garLoopResultBuilder]: At program point L167(line 167) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (and (not (= |old(~waterLevel~0)| 1)) .cse3)) (.cse0 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~methAndRunningLastTime~0 0) .cse1 .cse2) (or (not (= ~pumpRunning~0 0)) .cse1 (= ~waterLevel~0 1) .cse2) (or (not .cse3) .cse0 .cse1)))) [2022-11-23 13:40:34,386 INFO L895 garLoopResultBuilder]: At program point L167-1(line 167) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= |timeShift_isMethaneAlarm_#t~ret6#1| ~methaneLevelCritical~0) (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1))) (and (not (= |old(~waterLevel~0)| 1)) .cse1)) (or .cse2 (= ~methAndRunningLastTime~0 0) .cse0) (or (not .cse1) .cse2 .cse0))) [2022-11-23 13:40:34,386 INFO L895 garLoopResultBuilder]: At program point L324(lines 324 341) the Hoare annotation is: (let ((.cse7 (= 1 ~systemActive~0)) (.cse10 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse10)) (.cse6 (= ~pumpRunning~0 0)) (.cse8 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| ~methaneLevelCritical~0)) (.cse5 (= ~waterLevel~0 1)) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse3 (not .cse7))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5)) (or .cse0 .cse1 (and .cse6 .cse7 .cse8) .cse3 (and (not .cse5) .cse4 .cse8)) (let ((.cse9 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0))) (or (and .cse6 (not (= |timeShift_processEnvironment_~tmp~1#1| 0)) .cse7 .cse8 .cse9) .cse3 (and (not .cse6) (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) .cse8 .cse9) (and .cse6 .cse8 .cse5) (and .cse2 .cse10))) (or .cse1 .cse4 .cse3 (not (= ~methaneLevelCritical~0 0)))))) [2022-11-23 13:40:34,386 INFO L895 garLoopResultBuilder]: At program point L324-1(lines 316 344) the Hoare annotation is: (let ((.cse12 (= |old(~pumpRunning~0)| 0)) (.cse5 (= ~pumpRunning~0 0)) (.cse6 (= ~methAndRunningLastTime~0 0)) (.cse7 (= 1 ~systemActive~0)) (.cse9 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| ~methaneLevelCritical~0)) (.cse14 (= ~waterLevel~0 1))) (let ((.cse4 (and .cse5 .cse6 .cse7 .cse9 .cse14)) (.cse2 (not (= |old(~waterLevel~0)| 1))) (.cse0 (not .cse12)) (.cse1 (not (= |old(~methAndRunningLastTime~0)| 0))) (.cse3 (not .cse7)) (.cse11 (not .cse5)) (.cse8 (not (= ~methaneLevelCritical~0 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (let ((.cse10 (= |timeShift_processEnvironment_~tmp~1#1| ~methaneLevelCritical~0))) (or (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10) .cse3 (and .cse6 .cse11 (= |timeShift___utac_acc__Specification2_spec__2_~tmp~4#1| 0) .cse9 .cse10) .cse4 (and .cse2 .cse12))) (let ((.cse13 (not .cse14))) (or .cse0 .cse1 .cse3 (and .cse13 .cse11 .cse8 .cse9) (and .cse5 .cse6 .cse7 .cse9) (and .cse13 .cse6 .cse9)))))) [2022-11-23 13:40:34,387 INFO L895 garLoopResultBuilder]: At program point L287-2(lines 281 292) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 (or (not (= ~pumpRunning~0 0)) (= ~waterLevel~0 1)) .cse1) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-23 13:40:34,387 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 277) no Hoare annotation was computed. [2022-11-23 13:40:34,387 INFO L899 garLoopResultBuilder]: For program point L271-1(lines 271 277) no Hoare annotation was computed. [2022-11-23 13:40:34,387 INFO L902 garLoopResultBuilder]: At program point L300(lines 241 304) the Hoare annotation is: true [2022-11-23 13:40:34,387 INFO L895 garLoopResultBuilder]: At program point L263(line 263) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~waterLevel~0 1)) (not .cse0) .cse1 (not .cse2) .cse3) (and .cse4 .cse2 .cse1 .cse3) (and .cse0 .cse4 .cse1 .cse3))) [2022-11-23 13:40:34,387 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 13:40:34,388 INFO L895 garLoopResultBuilder]: At program point L297(lines 250 298) the Hoare annotation is: false [2022-11-23 13:40:34,388 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 13:40:34,388 INFO L899 garLoopResultBuilder]: For program point L252(lines 251 296) no Hoare annotation was computed. [2022-11-23 13:40:34,388 INFO L895 garLoopResultBuilder]: At program point L273(line 273) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1)) (not (= ~methaneLevelCritical~0 0))) (and (= ~methAndRunningLastTime~0 0) .cse0 .cse1))) [2022-11-23 13:40:34,388 INFO L895 garLoopResultBuilder]: At program point L294(lines 251 296) the Hoare annotation is: (let ((.cse2 (= ~methaneLevelCritical~0 0)) (.cse0 (= ~pumpRunning~0 0)) (.cse4 (= ~methAndRunningLastTime~0 0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= ~waterLevel~0 1)) (not .cse0) .cse1 (not .cse2) .cse3) (and .cse4 .cse2 .cse1 .cse3) (and .cse0 .cse4 .cse1 .cse3))) [2022-11-23 13:40:34,389 INFO L899 garLoopResultBuilder]: For program point L261(lines 261 267) no Hoare annotation was computed. [2022-11-23 13:40:34,389 INFO L899 garLoopResultBuilder]: For program point L261-1(lines 261 267) no Hoare annotation was computed. [2022-11-23 13:40:34,389 INFO L895 garLoopResultBuilder]: At program point L902(lines 902 909) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~methAndRunningLastTime~0 0) (= ~methaneLevelCritical~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-23 13:40:34,389 INFO L902 garLoopResultBuilder]: At program point L902-2(lines 902 909) the Hoare annotation is: true [2022-11-23 13:40:34,389 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 95 119) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or (not .cse3) .cse0 .cse1 .cse2) (or (not .cse1) .cse2 .cse4 (not (= ~methaneLevelCritical~0 0)) .cse3)))) [2022-11-23 13:40:34,390 INFO L895 garLoopResultBuilder]: At program point L114(line 114) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse3)) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 (not (= ~methAndRunningLastTime~0 0))) (or (not .cse2) .cse0 .cse1) (or (not (= ~pumpRunning~0 0)) .cse1 .cse3 (not (= ~methaneLevelCritical~0 0)) .cse2)))) [2022-11-23 13:40:34,390 INFO L899 garLoopResultBuilder]: For program point L114-1(lines 95 119) no Hoare annotation was computed. [2022-11-23 13:40:34,390 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 95 119) no Hoare annotation was computed. [2022-11-23 13:40:34,390 INFO L895 garLoopResultBuilder]: At program point L109(line 109) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse5 (= ~waterLevel~0 1)) (.cse0 (not .cse3)) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (and (or .cse0 .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) (and .cse1 .cse4 .cse5)) (or (not .cse5) .cse0 .cse2 (and .cse1 .cse4))))) [2022-11-23 13:40:34,390 INFO L895 garLoopResultBuilder]: At program point L103(lines 103 111) the Hoare annotation is: (let ((.cse3 (= |old(~pumpRunning~0)| 0))) (let ((.cse5 (= ~waterLevel~0 1)) (.cse0 (not .cse3)) (.cse2 (not (= 1 ~systemActive~0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |processEnvironment__wrappee__highWaterSensor_~tmp~0#1| 0))) (and (or .cse0 .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or .cse2 .cse3 (not (= ~methaneLevelCritical~0 0)) (and .cse1 .cse4 .cse5)) (or (not .cse5) .cse0 .cse2 (and .cse1 .cse4))))) [2022-11-23 13:40:34,391 INFO L895 garLoopResultBuilder]: At program point L99(lines 99 116) the Hoare annotation is: (let ((.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~waterLevel~0 1))) (and (or .cse0 .cse1 .cse2 (not (= ~methAndRunningLastTime~0 0))) (or (not .cse3) .cse0 .cse1 .cse2) (or (not .cse1) .cse2 .cse4 (not (= ~methaneLevelCritical~0 0)) .cse3)))) [2022-11-23 13:40:34,391 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 361 372) no Hoare annotation was computed. [2022-11-23 13:40:34,391 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 361 372) the Hoare annotation is: (let ((.cse6 (= ~waterLevel~0 1))) (let ((.cse4 (not (= ~methAndRunningLastTime~0 0))) (.cse0 (not .cse6)) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| 1)) (.cse5 (= ~methaneLevelCritical~0 0)) (.cse3 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (not .cse1) (not .cse2) .cse3 (not .cse5) .cse6 .cse4) (or .cse0 .cse1 .cse2 .cse5 .cse3)))) [2022-11-23 13:40:34,394 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 13:40:34,397 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 13:40:34,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:40:34 BoogieIcfgContainer [2022-11-23 13:40:34,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 13:40:34,439 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 13:40:34,439 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 13:40:34,440 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 13:40:34,440 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:40:23" (3/4) ... [2022-11-23 13:40:34,443 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 13:40:34,448 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 13:40:34,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 13:40:34,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 13:40:34,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-23 13:40:34,449 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 13:40:34,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-23 13:40:34,450 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 13:40:34,463 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2022-11-23 13:40:34,464 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 13:40:34,464 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 13:40:34,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:40:34,465 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 13:40:34,493 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive))) && (((!(pumpRunning == 0) || !(1 == systemActive)) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) [2022-11-23 13:40:34,495 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((methaneLevelCritical == 0 || !(1 == systemActive)) || (pumpRunning == 0 && 1 == systemActive)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (!(waterLevel == 1) && methAndRunningLastTime == 0)) || (pumpRunning == 0 && 1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || (pumpRunning == 0 && waterLevel == 1)) || (!(pumpRunning == 0) && tmp == methaneLevelCritical)) || (!(tmp == 0) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-23 13:40:34,495 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive))) && ((((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || waterLevel == 1) [2022-11-23 13:40:34,496 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && 1 == systemActive) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || ((!(waterLevel == 1) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical))) && ((((((((pumpRunning == 0 && !(tmp == 0)) && 1 == systemActive) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) || !(1 == systemActive)) || (((!(pumpRunning == 0) && tmp == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) [2022-11-23 13:40:34,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || (aux-isMethaneLevelCritical()-aux == methaneLevelCritical && (!(pumpRunning == 0) || waterLevel == 1))) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) [2022-11-23 13:40:34,497 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical) && waterLevel == 1)) && (((((((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) || !(1 == systemActive)) || ((((methAndRunningLastTime == 0 && !(pumpRunning == 0)) && tmp == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical) && waterLevel == 1)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((!(waterLevel == 1) && !(pumpRunning == 0)) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) || ((!(waterLevel == 1) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) [2022-11-23 13:40:34,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && ((!(1 == systemActive) || ((!(pumpRunning == 0) || waterLevel == 1) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) [2022-11-23 13:40:34,498 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) && (!(1 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) [2022-11-23 13:40:34,499 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == 0)) [2022-11-23 13:40:34,540 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 13:40:34,541 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 13:40:34,542 INFO L158 Benchmark]: Toolchain (without parser) took 12368.03ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 119.2MB in the beginning and 57.0MB in the end (delta: 62.2MB). Peak memory consumption was 95.7MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,542 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 13:40:34,542 INFO L158 Benchmark]: CACSL2BoogieTranslator took 574.41ms. Allocated memory is still 151.0MB. Free memory was 119.1MB in the beginning and 100.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,543 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.73ms. Allocated memory is still 151.0MB. Free memory was 100.5MB in the beginning and 98.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,543 INFO L158 Benchmark]: Boogie Preprocessor took 38.00ms. Allocated memory is still 151.0MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,543 INFO L158 Benchmark]: RCFGBuilder took 708.47ms. Allocated memory is still 151.0MB. Free memory was 96.6MB in the beginning and 73.3MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,544 INFO L158 Benchmark]: TraceAbstraction took 10864.07ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 72.7MB in the beginning and 63.3MB in the end (delta: 9.4MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,545 INFO L158 Benchmark]: Witness Printer took 101.76ms. Allocated memory is still 182.5MB. Free memory was 63.3MB in the beginning and 57.0MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 13:40:34,547 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 125.8MB. Free memory is still 99.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 574.41ms. Allocated memory is still 151.0MB. Free memory was 119.1MB in the beginning and 100.5MB in the end (delta: 18.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.73ms. Allocated memory is still 151.0MB. Free memory was 100.5MB in the beginning and 98.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.00ms. Allocated memory is still 151.0MB. Free memory was 98.3MB in the beginning and 96.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 708.47ms. Allocated memory is still 151.0MB. Free memory was 96.6MB in the beginning and 73.3MB in the end (delta: 23.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10864.07ms. Allocated memory was 151.0MB in the beginning and 182.5MB in the end (delta: 31.5MB). Free memory was 72.7MB in the beginning and 63.3MB in the end (delta: 9.4MB). Peak memory consumption was 64.2MB. Max. memory is 16.1GB. * Witness Printer took 101.76ms. Allocated memory is still 182.5MB. Free memory was 63.3MB in the beginning and 57.0MB 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: 445]: 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 8 procedures, 58 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 10.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 499 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 483 mSDsluCounter, 1696 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1125 mSDsCounter, 76 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1113 IncrementalHoareTripleChecker+Invalid, 1189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 76 mSolverCounterUnsat, 571 mSDtfsCounter, 1113 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 252 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=575occurred in iteration=9, InterpolantAutomatonStates: 69, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 109 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 1228 PreInvPairs, 1465 NumberOfFragments, 1421 HoareAnnotationTreeSize, 1228 FomulaSimplifications, 312 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 34 FomulaSimplificationsInter, 17598 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.9s InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 527 ConstructedInterpolants, 0 QuantifiedInterpolants, 1104 SizeOfPredicates, 13 NumberOfNonLiveVariables, 802 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 119/141 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || pumpRunning == 0) || !(1 == systemActive))) && ((((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || waterLevel == 1) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive))) && ((!(1 == systemActive) || ((!(pumpRunning == 0) || waterLevel == 1) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) - InvariantResult [Line: 103]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(methAndRunningLastTime == 0)) && (((!(1 == systemActive) || \old(pumpRunning) == 0) || !(methaneLevelCritical == 0)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1))) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && tmp == 0)) - InvariantResult [Line: 63]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive))) && (((!(pumpRunning == 0) || !(1 == systemActive)) || waterLevel == 1) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) - InvariantResult [Line: 167]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || (aux-isMethaneLevelCritical()-aux == methaneLevelCritical && (!(pumpRunning == 0) || waterLevel == 1))) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) && ((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive))) && ((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 827]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: ((((((methaneLevelCritical == 0 || !(1 == systemActive)) || (pumpRunning == 0 && 1 == systemActive)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (!(waterLevel == 1) && methAndRunningLastTime == 0)) || (pumpRunning == 0 && 1 == systemActive))) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && waterLevel == 1))) && ((((!(1 == systemActive) || (pumpRunning == 0 && waterLevel == 1)) || (!(pumpRunning == 0) && tmp == methaneLevelCritical)) || (!(tmp == 0) && tmp == methaneLevelCritical)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) - InvariantResult [Line: 251]: Loop Invariant Derived loop invariant: (((((!(waterLevel == 1) && !(pumpRunning == 0)) && 1 == systemActive) && !(methaneLevelCritical == 0)) && splverifierCounter == 0) || (((methAndRunningLastTime == 0 && methaneLevelCritical == 0) && 1 == systemActive) && splverifierCounter == 0)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 902]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && methAndRunningLastTime == 0) && methaneLevelCritical == 0) && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical) && waterLevel == 1)) && (((((((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) || !(1 == systemActive)) || ((((methAndRunningLastTime == 0 && !(pumpRunning == 0)) && tmp == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || ((((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical) && waterLevel == 1)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(1 == systemActive)) || (((!(waterLevel == 1) && !(pumpRunning == 0)) && !(methaneLevelCritical == 0)) && tmp == methaneLevelCritical)) || (((pumpRunning == 0 && methAndRunningLastTime == 0) && 1 == systemActive) && tmp == methaneLevelCritical)) || ((!(waterLevel == 1) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical)) - InvariantResult [Line: 445]: Loop Invariant Derived loop invariant: (!(\old(methAndRunningLastTime) == 0) || !(1 == systemActive)) && (!(1 == systemActive) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0)) - InvariantResult [Line: 250]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 241]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 324]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (methAndRunningLastTime == 0 && waterLevel == 1)) && ((((!(\old(pumpRunning) == 0) || !(\old(methAndRunningLastTime) == 0)) || ((pumpRunning == 0 && 1 == systemActive) && tmp == methaneLevelCritical)) || !(1 == systemActive)) || ((!(waterLevel == 1) && methAndRunningLastTime == 0) && tmp == methaneLevelCritical))) && ((((((((pumpRunning == 0 && !(tmp == 0)) && 1 == systemActive) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical) || !(1 == systemActive)) || (((!(pumpRunning == 0) && tmp == 0) && tmp == methaneLevelCritical) && tmp == methaneLevelCritical)) || ((pumpRunning == 0 && tmp == methaneLevelCritical) && waterLevel == 1)) || (!(\old(waterLevel) == 1) && \old(pumpRunning) == 0))) && (((!(\old(methAndRunningLastTime) == 0) || methAndRunningLastTime == 0) || !(1 == systemActive)) || !(methaneLevelCritical == 0)) RESULT: Ultimate proved your program to be correct! [2022-11-23 13:40:34,603 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9bffe8a2-51fa-4530-8fce-c3a88aeaa32a/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE