./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.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_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/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_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/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_9e55ec91-0f75-418e-bc0b-88ba3c13d519/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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 15:54:56,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 15:54:56,079 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 15:54:56,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 15:54:56,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 15:54:56,119 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 15:54:56,121 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 15:54:56,125 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 15:54:56,127 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 15:54:56,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 15:54:56,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 15:54:56,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 15:54:56,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 15:54:56,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 15:54:56,143 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 15:54:56,146 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 15:54:56,148 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 15:54:56,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 15:54:56,150 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 15:54:56,157 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 15:54:56,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 15:54:56,161 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 15:54:56,162 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 15:54:56,163 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 15:54:56,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 15:54:56,174 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 15:54:56,174 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 15:54:56,176 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 15:54:56,177 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 15:54:56,178 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 15:54:56,178 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 15:54:56,179 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 15:54:56,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 15:54:56,183 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 15:54:56,184 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 15:54:56,184 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 15:54:56,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 15:54:56,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 15:54:56,186 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 15:54:56,187 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 15:54:56,188 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 15:54:56,189 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-23 15:54:56,209 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 15:54:56,209 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 15:54:56,209 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 15:54:56,210 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 15:54:56,210 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 15:54:56,211 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 15:54:56,211 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 15:54:56,211 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 15:54:56,211 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 15:54:56,211 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 15:54:56,212 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 15:54:56,212 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 15:54:56,212 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 15:54:56,212 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 15:54:56,212 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 15:54:56,213 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 15:54:56,213 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 15:54:56,213 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 15:54:56,214 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 15:54:56,214 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 15:54:56,214 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 15:54:56,214 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 15:54:56,215 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 15:54:56,215 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 15:54:56,215 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 15:54:56,215 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 15:54:56,215 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 15:54:56,216 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 15:54:56,216 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 15:54:56,216 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 15:54:56,216 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 15:54:56,216 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 15:54:56,217 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:54:56,217 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 15:54:56,217 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 15:54:56,217 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 15:54:56,218 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 15:54:56,218 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 15:54:56,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 15:54:56,218 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 15:54:56,218 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 15:54:56,218 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_9e55ec91-0f75-418e-bc0b-88ba3c13d519/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2022-11-23 15:54:56,474 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 15:54:56,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 15:54:56,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 15:54:56,502 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 15:54:56,503 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 15:54:56,504 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2022-11-23 15:54:59,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 15:54:59,805 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 15:54:59,806 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2022-11-23 15:54:59,821 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/data/6efb58aa6/b4975a71e23f4e748aa90f252ce654de/FLAGb1924550e [2022-11-23 15:54:59,839 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/data/6efb58aa6/b4975a71e23f4e748aa90f252ce654de [2022-11-23 15:54:59,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 15:54:59,846 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 15:54:59,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 15:54:59,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 15:54:59,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 15:54:59,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:59" (1/1) ... [2022-11-23 15:54:59,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a8eff72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:54:59, skipping insertion in model container [2022-11-23 15:54:59,857 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:54:59" (1/1) ... [2022-11-23 15:54:59,864 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 15:54:59,923 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 15:55:00,070 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_9e55ec91-0f75-418e-bc0b-88ba3c13d519/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2022-11-23 15:55:00,168 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:55:00,179 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 15:55:00,195 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_9e55ec91-0f75-418e-bc0b-88ba3c13d519/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c[2141,2154] [2022-11-23 15:55:00,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 15:55:00,306 INFO L208 MainTranslator]: Completed translation [2022-11-23 15:55:00,307 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00 WrapperNode [2022-11-23 15:55:00,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 15:55:00,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 15:55:00,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 15:55:00,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 15:55:00,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,374 INFO L138 Inliner]: procedures = 55, calls = 97, calls flagged for inlining = 23, calls inlined = 19, statements flattened = 175 [2022-11-23 15:55:00,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 15:55:00,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 15:55:00,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 15:55:00,376 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 15:55:00,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,402 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,423 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,427 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 15:55:00,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 15:55:00,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 15:55:00,431 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 15:55:00,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (1/1) ... [2022-11-23 15:55:00,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 15:55:00,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:55:00,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 15:55:00,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 15:55:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 15:55:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-23 15:55:00,512 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-23 15:55:00,512 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-23 15:55:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-23 15:55:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-23 15:55:00,513 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-23 15:55:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-23 15:55:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-23 15:55:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-23 15:55:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-23 15:55:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 15:55:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-23 15:55:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-23 15:55:00,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 15:55:00,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 15:55:00,591 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 15:55:00,593 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 15:55:00,848 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 15:55:01,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 15:55:01,076 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 15:55:01,079 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:01 BoogieIcfgContainer [2022-11-23 15:55:01,079 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 15:55:01,082 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 15:55:01,082 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 15:55:01,086 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 15:55:01,087 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:54:59" (1/3) ... [2022-11-23 15:55:01,088 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ca69ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:55:01, skipping insertion in model container [2022-11-23 15:55:01,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:55:00" (2/3) ... [2022-11-23 15:55:01,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ca69ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:55:01, skipping insertion in model container [2022-11-23 15:55:01,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:01" (3/3) ... [2022-11-23 15:55:01,092 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2022-11-23 15:55:01,116 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 15:55:01,116 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 15:55:01,197 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 15:55:01,209 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@65fd224f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 15:55:01,209 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 15:55:01,216 INFO L276 IsEmpty]: Start isEmpty. Operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-23 15:55:01,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-23 15:55:01,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:01,232 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] [2022-11-23 15:55:01,233 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:01,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:01,243 INFO L85 PathProgramCache]: Analyzing trace with hash -457706804, now seen corresponding path program 1 times [2022-11-23 15:55:01,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:01,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569224788] [2022-11-23 15:55:01,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:01,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:01,447 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:55:01,448 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:01,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569224788] [2022-11-23 15:55:01,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569224788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:01,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:01,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 15:55:01,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011212030] [2022-11-23 15:55:01,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:01,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-23 15:55:01,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:01,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-23 15:55:01,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:55:01,503 INFO L87 Difference]: Start difference. First operand has 51 states, 33 states have (on average 1.4242424242424243) internal successors, (47), 39 states have internal predecessors, (47), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:55:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:01,654 INFO L93 Difference]: Finished difference Result 100 states and 135 transitions. [2022-11-23 15:55:01,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-23 15:55:01,657 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2022-11-23 15:55:01,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:01,666 INFO L225 Difference]: With dead ends: 100 [2022-11-23 15:55:01,670 INFO L226 Difference]: Without dead ends: 46 [2022-11-23 15:55:01,674 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-23 15:55:01,681 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:01,683 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:55:01,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2022-11-23 15:55:01,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2022-11-23 15:55:01,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 30 states have (on average 1.3) internal successors, (39), 35 states have internal predecessors, (39), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-23 15:55:01,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2022-11-23 15:55:01,766 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 21 [2022-11-23 15:55:01,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:01,767 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2022-11-23 15:55:01,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:55:01,767 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2022-11-23 15:55:01,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-23 15:55:01,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:01,769 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] [2022-11-23 15:55:01,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 15:55:01,770 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash -460735543, now seen corresponding path program 1 times [2022-11-23 15:55:01,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:01,772 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026824032] [2022-11-23 15:55:01,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:01,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:01,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:02,092 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-23 15:55:02,092 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:02,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026824032] [2022-11-23 15:55:02,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026824032] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:02,093 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:02,093 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:55:02,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215774593] [2022-11-23 15:55:02,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:02,095 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:55:02,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:02,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:55:02,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:55:02,096 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 15:55:02,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:02,326 INFO L93 Difference]: Finished difference Result 132 states and 187 transitions. [2022-11-23 15:55:02,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 15:55:02,327 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 24 [2022-11-23 15:55:02,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:02,329 INFO L225 Difference]: With dead ends: 132 [2022-11-23 15:55:02,329 INFO L226 Difference]: Without dead ends: 88 [2022-11-23 15:55:02,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-23 15:55:02,332 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 38 mSDsluCounter, 214 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:02,333 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 281 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:55:02,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2022-11-23 15:55:02,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 84. [2022-11-23 15:55:02,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 61 states have internal predecessors, (69), 18 states have call successors, (18), 12 states have call predecessors, (18), 10 states have return successors, (22), 16 states have call predecessors, (22), 16 states have call successors, (22) [2022-11-23 15:55:02,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 109 transitions. [2022-11-23 15:55:02,361 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 109 transitions. Word has length 24 [2022-11-23 15:55:02,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:02,362 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 109 transitions. [2022-11-23 15:55:02,362 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.8) internal successors, (19), 5 states have internal predecessors, (19), 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 15:55:02,362 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 109 transitions. [2022-11-23 15:55:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-23 15:55:02,365 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:02,365 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] [2022-11-23 15:55:02,366 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 15:55:02,366 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:02,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:02,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1230227349, now seen corresponding path program 1 times [2022-11-23 15:55:02,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:02,373 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253916419] [2022-11-23 15:55:02,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:02,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:02,449 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:55:02,449 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:02,450 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253916419] [2022-11-23 15:55:02,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253916419] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:02,450 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:02,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 15:55:02,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [247516273] [2022-11-23 15:55:02,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:02,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 15:55:02,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:02,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 15:55:02,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:02,453 INFO L87 Difference]: Start difference. First operand 84 states and 109 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:55:02,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:02,494 INFO L93 Difference]: Finished difference Result 124 states and 156 transitions. [2022-11-23 15:55:02,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 15:55:02,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2022-11-23 15:55:02,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:02,499 INFO L225 Difference]: With dead ends: 124 [2022-11-23 15:55:02,499 INFO L226 Difference]: Without dead ends: 68 [2022-11-23 15:55:02,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 15:55:02,501 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 7 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:02,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 61 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 15:55:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-11-23 15:55:02,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2022-11-23 15:55:02,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 45 states have (on average 1.2666666666666666) internal successors, (57), 51 states have internal predecessors, (57), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (14), 12 states have call predecessors, (14), 12 states have call successors, (14) [2022-11-23 15:55:02,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2022-11-23 15:55:02,525 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 25 [2022-11-23 15:55:02,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:02,526 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2022-11-23 15:55:02,526 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-23 15:55:02,526 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2022-11-23 15:55:02,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-11-23 15:55:02,533 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:02,533 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 15:55:02,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 15:55:02,533 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:02,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:02,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1875186536, now seen corresponding path program 1 times [2022-11-23 15:55:02,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:02,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293816308] [2022-11-23 15:55:02,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:02,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:02,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:02,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:55:02,946 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:02,946 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293816308] [2022-11-23 15:55:02,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293816308] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:02,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:02,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-23 15:55:02,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768324718] [2022-11-23 15:55:02,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:02,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-23 15:55:02,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:02,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 15:55:02,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-23 15:55:02,957 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:55:03,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:03,107 INFO L93 Difference]: Finished difference Result 179 states and 221 transitions. [2022-11-23 15:55:03,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 15:55:03,108 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 27 [2022-11-23 15:55:03,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:03,113 INFO L225 Difference]: With dead ends: 179 [2022-11-23 15:55:03,113 INFO L226 Difference]: Without dead ends: 113 [2022-11-23 15:55:03,115 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-23 15:55:03,122 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 61 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:03,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 164 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 15:55:03,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-23 15:55:03,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 104. [2022-11-23 15:55:03,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 70 states have (on average 1.2428571428571429) internal successors, (87), 78 states have internal predecessors, (87), 18 states have call successors, (18), 14 states have call predecessors, (18), 15 states have return successors, (21), 18 states have call predecessors, (21), 18 states have call successors, (21) [2022-11-23 15:55:03,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 126 transitions. [2022-11-23 15:55:03,153 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 126 transitions. Word has length 27 [2022-11-23 15:55:03,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:03,154 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 126 transitions. [2022-11-23 15:55:03,154 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.5) internal successors, (21), 6 states have internal predecessors, (21), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-23 15:55:03,154 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 126 transitions. [2022-11-23 15:55:03,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-23 15:55:03,158 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:03,158 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:03,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-23 15:55:03,159 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:03,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -24457034, now seen corresponding path program 1 times [2022-11-23 15:55:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:03,160 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703299564] [2022-11-23 15:55:03,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:03,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:03,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:03,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-23 15:55:03,531 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:03,531 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703299564] [2022-11-23 15:55:03,531 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703299564] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 15:55:03,531 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 15:55:03,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-23 15:55:03,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569004152] [2022-11-23 15:55:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 15:55:03,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-23 15:55:03,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:03,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-23 15:55:03,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-23 15:55:03,538 INFO L87 Difference]: Start difference. First operand 104 states and 126 transitions. Second operand has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:55:04,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:04,021 INFO L93 Difference]: Finished difference Result 272 states and 335 transitions. [2022-11-23 15:55:04,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-23 15:55:04,022 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 30 [2022-11-23 15:55:04,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:04,028 INFO L225 Difference]: With dead ends: 272 [2022-11-23 15:55:04,028 INFO L226 Difference]: Without dead ends: 199 [2022-11-23 15:55:04,037 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2022-11-23 15:55:04,039 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 156 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 294 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:04,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 212 Invalid, 294 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:55:04,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-11-23 15:55:04,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 178. [2022-11-23 15:55:04,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 120 states have (on average 1.25) internal successors, (150), 135 states have internal predecessors, (150), 31 states have call successors, (31), 23 states have call predecessors, (31), 26 states have return successors, (36), 31 states have call predecessors, (36), 31 states have call successors, (36) [2022-11-23 15:55:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 217 transitions. [2022-11-23 15:55:04,087 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 217 transitions. Word has length 30 [2022-11-23 15:55:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:04,087 INFO L495 AbstractCegarLoop]: Abstraction has 178 states and 217 transitions. [2022-11-23 15:55:04,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 3 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-23 15:55:04,088 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 217 transitions. [2022-11-23 15:55:04,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-11-23 15:55:04,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 15:55:04,089 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 15:55:04,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-23 15:55:04,090 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 15:55:04,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 15:55:04,090 INFO L85 PathProgramCache]: Analyzing trace with hash 793937010, now seen corresponding path program 1 times [2022-11-23 15:55:04,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 15:55:04,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317973069] [2022-11-23 15:55:04,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:04,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 15:55:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:55:04,268 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-23 15:55:04,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317973069] [2022-11-23 15:55:04,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317973069] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-23 15:55:04,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531987395] [2022-11-23 15:55:04,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 15:55:04,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 15:55:04,269 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 15:55:04,275 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 15:55:04,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-23 15:55:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 15:55:04,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-23 15:55:04,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 15:55:04,529 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 15:55:04,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 15:55:04,683 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 12 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-11-23 15:55:04,684 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531987395] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 15:55:04,684 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [369057203] [2022-11-23 15:55:04,711 INFO L159 IcfgInterpreter]: Started Sifa with 31 locations of interest [2022-11-23 15:55:04,711 INFO L166 IcfgInterpreter]: Building call graph [2022-11-23 15:55:04,716 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-23 15:55:04,736 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-23 15:55:04,737 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-23 15:55:09,146 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 125 for LOIs [2022-11-23 15:55:09,167 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 32 for LOIs [2022-11-23 15:55:09,431 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 56 for LOIs [2022-11-23 15:55:09,445 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-23 15:55:15,113 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '2432#(and (<= |old(~waterLevel~0)| 2147483647) (<= 1 |timeShift_processEnvironment_~tmp~4#1|) (<= |timeShift_processEnvironment_~tmp~4#1| 1) (<= |timeShift_isHighWaterLevel_#res#1| 1) (<= 0 |timeShift_isHighWaterSensorDry_~retValue_acc~7#1|) (= ~methaneLevelCritical~0 0) (<= 0 |old(~switchedOnBeforeTS~0)|) (= ~head~0.offset 0) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2147483647) (<= |timeShift_getWaterLevel_~retValue_acc~6#1| 2147483647) (<= 2 ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_~retValue_acc~6#1|) (<= 0 |timeShift_isHighWaterSensorDry_#res#1|) (= 1 ~systemActive~0) (<= |old(~switchedOnBeforeTS~0)| 0) (= |old(~pumpRunning~0)| 0) (<= |timeShift_isHighWaterLevel_~retValue_acc~10#1| 1) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1| 1) (= |timeShift_isHighWaterLevel_~tmp~5#1| 0) (<= 2 |old(~waterLevel~0)|) (<= 2 |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1|) (<= 1 |timeShift_isHighWaterLevel_~retValue_acc~10#1|) (<= ~waterLevel~0 2147483647) (<= |timeShift_getWaterLevel_#res#1| 2147483647) (<= 1 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~2#1|) (<= 2 |timeShift_getWaterLevel_#res#1|) (= ~head~0.base 0) (= |#NULL.offset| 0) (<= |timeShift_isHighWaterSensorDry_~retValue_acc~7#1| 0) (<= |timeShift_isHighWaterSensorDry_#res#1| 0) (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 1) (<= 1 |timeShift_isHighWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (= ~pumpRunning~0 1) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-23 15:55:15,113 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-23 15:55:15,113 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-23 15:55:15,114 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 13 [2022-11-23 15:55:15,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69604773] [2022-11-23 15:55:15,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-23 15:55:15,114 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-23 15:55:15,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-23 15:55:15,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-23 15:55:15,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=1106, Unknown=0, NotChecked=0, Total=1260 [2022-11-23 15:55:15,116 INFO L87 Difference]: Start difference. First operand 178 states and 217 transitions. Second operand has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-23 15:55:15,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 15:55:15,610 INFO L93 Difference]: Finished difference Result 242 states and 308 transitions. [2022-11-23 15:55:15,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-23 15:55:15,615 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 47 [2022-11-23 15:55:15,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 15:55:15,617 INFO L225 Difference]: With dead ends: 242 [2022-11-23 15:55:15,617 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 15:55:15,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 115 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=220, Invalid=1672, Unknown=0, NotChecked=0, Total=1892 [2022-11-23 15:55:15,625 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 132 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 377 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-23 15:55:15,626 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 481 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 377 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-23 15:55:15,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 15:55:15,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 15:55:15,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 15:55:15,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 15:55:15,630 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 47 [2022-11-23 15:55:15,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 15:55:15,632 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 15:55:15,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 5.9) internal successors, (59), 11 states have internal predecessors, (59), 5 states have call successors, (11), 4 states have call predecessors, (11), 7 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2022-11-23 15:55:15,632 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 15:55:15,633 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 15:55:15,635 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 15:55:15,642 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-23 15:55:15,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2022-11-23 15:55:15,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 15:55:17,421 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 670 676) no Hoare annotation was computed. [2022-11-23 15:55:17,422 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 670 676) the Hoare annotation is: true [2022-11-23 15:55:17,422 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 496 507) the Hoare annotation is: true [2022-11-23 15:55:17,422 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 496 507) no Hoare annotation was computed. [2022-11-23 15:55:17,422 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 853 882) no Hoare annotation was computed. [2022-11-23 15:55:17,422 INFO L902 garLoopResultBuilder]: At program point L863-2(lines 863 877) the Hoare annotation is: true [2022-11-23 15:55:17,422 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 853 882) the Hoare annotation is: true [2022-11-23 15:55:17,422 INFO L902 garLoopResultBuilder]: At program point L859(line 859) the Hoare annotation is: true [2022-11-23 15:55:17,422 INFO L899 garLoopResultBuilder]: For program point L859-1(line 859) no Hoare annotation was computed. [2022-11-23 15:55:17,422 INFO L902 garLoopResultBuilder]: At program point L878(lines 853 882) the Hoare annotation is: true [2022-11-23 15:55:17,423 INFO L899 garLoopResultBuilder]: For program point L874(line 874) no Hoare annotation was computed. [2022-11-23 15:55:17,423 INFO L899 garLoopResultBuilder]: For program point L867(lines 867 871) no Hoare annotation was computed. [2022-11-23 15:55:17,423 INFO L902 garLoopResultBuilder]: At program point L867-1(lines 867 871) the Hoare annotation is: true [2022-11-23 15:55:17,423 INFO L895 garLoopResultBuilder]: At program point L832(line 832) the Hoare annotation is: (let ((.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~waterLevel~0 1)) (.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 2))) (.cse6 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and (= ~pumpRunning~0 0) .cse4)) (or .cse3 .cse5 .cse6) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) .cse4) .cse0 .cse1) .cse2 .cse5 .cse6))) [2022-11-23 15:55:17,424 INFO L899 garLoopResultBuilder]: For program point L832-1(line 832) no Hoare annotation was computed. [2022-11-23 15:55:17,424 INFO L895 garLoopResultBuilder]: At program point L692(line 692) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 (= ~waterLevel~0 1))) (or .cse3 .cse4 .cse5) (or (and .cse1 .cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0 .cse4 .cse5) (or .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-23 15:55:17,424 INFO L895 garLoopResultBuilder]: At program point L697(line 697) the Hoare annotation is: (let ((.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 .cse4 .cse5) (or (and (or (= |old(~waterLevel~0)| ~waterLevel~0) (= ~waterLevel~0 1)) .cse0 .cse1) .cse2 .cse4 .cse5) (or .cse3 (not (= |old(~waterLevel~0)| 1))))) [2022-11-23 15:55:17,424 INFO L895 garLoopResultBuilder]: At program point L697-1(lines 678 702) the Hoare annotation is: (let ((.cse3 (= ~waterLevel~0 1)) (.cse4 (<= 1 ~switchedOnBeforeTS~0)) (.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |timeShift_processEnvironment_~tmp~4#1| 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse8 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse9 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2 .cse3)) (or (and .cse4 .cse5) .cse6 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or (and (or .cse7 .cse3) .cse4 .cse5) .cse6 .cse8 .cse9) (or (and .cse1 .cse2 .cse7) .cse0 .cse8 (and .cse7 .cse5) .cse9))) [2022-11-23 15:55:17,425 INFO L895 garLoopResultBuilder]: At program point L817(line 817) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 (and .cse5 .cse6) .cse7) (or (and (or .cse5 .cse2) (<= 1 ~switchedOnBeforeTS~0) .cse6) .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse1 .cse5) .cse4 .cse7))) [2022-11-23 15:55:17,425 INFO L895 garLoopResultBuilder]: At program point L817-1(line 817) the Hoare annotation is: (let ((.cse2 (<= 1 |timeShift___utac_acc__Specification5_spec__2_#t~ret48#1|)) (.cse8 (= ~waterLevel~0 1)) (.cse4 (= ~pumpRunning~0 1)) (.cse0 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4) .cse5) (or .cse6 (not (= |old(~waterLevel~0)| 1)) (and .cse7 .cse8)) (or (and .cse2 (or .cse3 .cse8) (<= 1 ~switchedOnBeforeTS~0) .cse4) .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse6 (and .cse7 .cse3) .cse1 .cse5))) [2022-11-23 15:55:17,425 INFO L899 garLoopResultBuilder]: For program point L834(lines 834 844) no Hoare annotation was computed. [2022-11-23 15:55:17,425 INFO L899 garLoopResultBuilder]: For program point L830(lines 830 847) no Hoare annotation was computed. [2022-11-23 15:55:17,426 INFO L895 garLoopResultBuilder]: At program point L830-1(lines 822 850) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= ~waterLevel~0 1)) (.cse8 (<= 1 ~switchedOnBeforeTS~0)) (.cse5 (= ~pumpRunning~0 1)) (.cse9 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (let ((.cse2 (< 1 |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1|)) (.cse3 (<= |timeShift___utac_acc__Specification5_spec__3_~tmp~6#1| 2))) (or .cse0 (and .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse3 .cse4 .cse5) .cse6 .cse7)) (or (and .cse8 .cse5) .cse9 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse10)) (or (and (or .cse4 .cse10) .cse8 .cse5) .cse9 .cse6 .cse7))) [2022-11-23 15:55:17,426 INFO L895 garLoopResultBuilder]: At program point L657-1(lines 657 663) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (= ~waterLevel~0 1)) (.cse6 (<= 1 ~switchedOnBeforeTS~0)) (.cse4 (= ~pumpRunning~0 1)) (.cse7 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse5 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (and .cse1 .cse2) .cse3 (and .cse2 .cse4) .cse5) (or (and .cse6 .cse4) .cse7 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse8)) (or (and (or .cse2 .cse8) .cse6 .cse4) .cse7 .cse3 .cse5))) [2022-11-23 15:55:17,426 INFO L895 garLoopResultBuilder]: At program point L686(lines 686 694) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (not (<= |old(~waterLevel~0)| 2))) (.cse4 (not (<= 2 |old(~waterLevel~0)|))) (.cse2 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= |timeShift_processEnvironment_~tmp~4#1| 0) (= ~waterLevel~0 1))) (or .cse2 .cse3 .cse4) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse3 .cse4) (or .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-23 15:55:17,426 INFO L895 garLoopResultBuilder]: At program point L682(lines 682 699) the Hoare annotation is: (let ((.cse5 (= ~waterLevel~0 1)) (.cse0 (<= 1 ~switchedOnBeforeTS~0)) (.cse1 (= ~pumpRunning~0 1)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse6 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (not (<= |old(~waterLevel~0)| 2))) (.cse8 (not (<= 2 |old(~waterLevel~0)|)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse3 (not (= |old(~waterLevel~0)| 1)) (and .cse4 .cse5)) (or (and (or .cse6 .cse5) .cse0 .cse1) .cse2 .cse7 .cse8) (or .cse3 (and .cse4 .cse6) .cse7 .cse8))) [2022-11-23 15:55:17,427 INFO L899 garLoopResultBuilder]: For program point L835(lines 835 841) no Hoare annotation was computed. [2022-11-23 15:55:17,427 INFO L895 garLoopResultBuilder]: At program point L92(line 92) the Hoare annotation is: (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= |old(~pumpRunning~0)| 1)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse1 .cse2) (or .cse3 (not (= |old(~waterLevel~0)| 1))) (or .cse0 (not (<= 1 |old(~switchedOnBeforeTS~0)|))))) [2022-11-23 15:55:17,427 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 643 669) the Hoare annotation is: (let ((.cse2 (= ~waterLevel~0 1)) (.cse6 (= ~pumpRunning~0 1)) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (not (<= |old(~waterLevel~0)| 2))) (.cse7 (not (<= 2 |old(~waterLevel~0)|)))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 .cse2)) (or .cse3 .cse4 (and .cse5 .cse6) .cse7) (or (and (or .cse5 .cse2) (<= 1 ~switchedOnBeforeTS~0) .cse6) .cse3 (not (<= 1 |old(~switchedOnBeforeTS~0)|))) (or .cse0 (and .cse1 .cse5) .cse4 .cse7))) [2022-11-23 15:55:17,427 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 643 669) no Hoare annotation was computed. [2022-11-23 15:55:17,427 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 92) no Hoare annotation was computed. [2022-11-23 15:55:17,427 INFO L899 garLoopResultBuilder]: For program point L650-2(lines 646 668) no Hoare annotation was computed. [2022-11-23 15:55:17,428 INFO L899 garLoopResultBuilder]: For program point L597(lines 597 603) no Hoare annotation was computed. [2022-11-23 15:55:17,428 INFO L895 garLoopResultBuilder]: At program point L597-1(lines 597 603) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2022-11-23 15:55:17,428 INFO L895 garLoopResultBuilder]: At program point L622(lines 577 624) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2022-11-23 15:55:17,428 INFO L895 garLoopResultBuilder]: At program point L589(line 589) the Hoare annotation is: (let ((.cse1 (<= 2 ~waterLevel~0)) (.cse3 (<= ~waterLevel~0 2)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (= ~pumpRunning~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse0 (let ((.cse5 (= ~pumpRunning~0 0))) (or (and .cse5 .cse2 (= ~waterLevel~0 1)) (and .cse5 .cse1 .cse2 .cse3)))) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse4))) [2022-11-23 15:55:17,428 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-23 15:55:17,429 INFO L895 garLoopResultBuilder]: At program point L615-2(lines 607 620) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2022-11-23 15:55:17,429 INFO L899 garLoopResultBuilder]: For program point L578(lines 577 624) no Hoare annotation was computed. [2022-11-23 15:55:17,429 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 15:55:17,429 INFO L895 garLoopResultBuilder]: At program point L599(line 599) the Hoare annotation is: (let ((.cse5 (= ~pumpRunning~0 1)) (.cse0 (= |ULTIMATE.start_main_~tmp~7#1| 1)) (.cse1 (= ~pumpRunning~0 0)) (.cse3 (<= 2 ~waterLevel~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse4 (<= ~waterLevel~0 2))) (or (and .cse0 .cse1 .cse2 (= ~waterLevel~0 1)) (and .cse0 .cse3 .cse2 .cse4 .cse5) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse5) (and .cse0 .cse1 .cse3 .cse2 .cse4))) [2022-11-23 15:55:17,429 INFO L902 garLoopResultBuilder]: At program point L628(lines 567 632) the Hoare annotation is: true [2022-11-23 15:55:17,429 INFO L899 garLoopResultBuilder]: For program point L587(lines 587 593) no Hoare annotation was computed. [2022-11-23 15:55:17,429 INFO L899 garLoopResultBuilder]: For program point L587-1(lines 587 593) no Hoare annotation was computed. [2022-11-23 15:55:17,429 INFO L895 garLoopResultBuilder]: At program point L625(lines 576 626) the Hoare annotation is: false [2022-11-23 15:55:17,430 INFO L895 garLoopResultBuilder]: At program point L935(lines 935 942) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~7#1| 1) (= ~pumpRunning~0 0) (= ~waterLevel~0 1)) [2022-11-23 15:55:17,430 INFO L902 garLoopResultBuilder]: At program point L935-2(lines 935 942) the Hoare annotation is: true [2022-11-23 15:55:17,430 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 484 495) no Hoare annotation was computed. [2022-11-23 15:55:17,430 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 484 495) the Hoare annotation is: (let ((.cse1 (not (<= |old(~waterLevel~0)| 2))) (.cse2 (not (<= 2 |old(~waterLevel~0)|))) (.cse5 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~waterLevel~0 1))) (and (or (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 .cse1 .cse2) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) .cse3 .cse4) (or .cse5 .cse3 .cse1 .cse2) (or .cse5 .cse3 .cse4 (not (<= 1 ~switchedOnBeforeTS~0))))) [2022-11-23 15:55:17,430 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 730 738) no Hoare annotation was computed. [2022-11-23 15:55:17,430 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 730 738) the Hoare annotation is: true [2022-11-23 15:55:17,434 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-23 15:55:17,436 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 15:55:17,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:55:17 BoogieIcfgContainer [2022-11-23 15:55:17,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 15:55:17,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 15:55:17,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 15:55:17,462 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 15:55:17,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:55:01" (3/4) ... [2022-11-23 15:55:17,465 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 15:55:17,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-23 15:55:17,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-23 15:55:17,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-23 15:55:17,471 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-23 15:55:17,472 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-23 15:55:17,472 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-23 15:55:17,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 44 nodes and edges [2022-11-23 15:55:17,478 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-23 15:55:17,479 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-23 15:55:17,479 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:55:17,480 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 15:55:17,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((((1 <= aux-isPumpRunning()-aux && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-23 15:55:17,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-23 15:55:17,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 < tmp) && tmp <= 2) && \old(waterLevel) == waterLevel)) || (((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-23 15:55:17,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) [2022-11-23 15:55:17,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-23 15:55:17,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) [2022-11-23 15:55:17,508 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && ((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) [2022-11-23 15:55:17,549 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 15:55:17,549 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 15:55:17,550 INFO L158 Benchmark]: Toolchain (without parser) took 17703.68ms. Allocated memory was 176.2MB in the beginning and 323.0MB in the end (delta: 146.8MB). Free memory was 140.8MB in the beginning and 247.7MB in the end (delta: -106.9MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2022-11-23 15:55:17,550 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:55:17,550 INFO L158 Benchmark]: CACSL2BoogieTranslator took 457.55ms. Allocated memory is still 176.2MB. Free memory was 140.8MB in the beginning and 121.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-23 15:55:17,551 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.60ms. Allocated memory is still 176.2MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 15:55:17,553 INFO L158 Benchmark]: Boogie Preprocessor took 53.83ms. Allocated memory is still 176.2MB. Free memory was 119.8MB in the beginning and 118.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 15:55:17,553 INFO L158 Benchmark]: RCFGBuilder took 649.18ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 95.4MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-23 15:55:17,554 INFO L158 Benchmark]: TraceAbstraction took 16379.12ms. Allocated memory was 176.2MB in the beginning and 323.0MB in the end (delta: 146.8MB). Free memory was 94.6MB in the beginning and 252.9MB in the end (delta: -158.3MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. [2022-11-23 15:55:17,555 INFO L158 Benchmark]: Witness Printer took 87.28ms. Allocated memory is still 323.0MB. Free memory was 252.9MB in the beginning and 247.7MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-23 15:55:17,557 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 176.2MB. Free memory is still 116.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 457.55ms. Allocated memory is still 176.2MB. Free memory was 140.8MB in the beginning and 121.9MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.60ms. Allocated memory is still 176.2MB. Free memory was 121.9MB in the beginning and 119.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.83ms. Allocated memory is still 176.2MB. Free memory was 119.8MB in the beginning and 118.5MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 649.18ms. Allocated memory is still 176.2MB. Free memory was 118.5MB in the beginning and 95.4MB in the end (delta: 23.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 16379.12ms. Allocated memory was 176.2MB in the beginning and 323.0MB in the end (delta: 146.8MB). Free memory was 94.6MB in the beginning and 252.9MB in the end (delta: -158.3MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. * Witness Printer took 87.28ms. Allocated memory is still 323.0MB. Free memory was 252.9MB in the beginning and 247.7MB in the end (delta: 5.2MB). 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: 92]: 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 7 procedures, 51 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 16.3s, OverallIterations: 6, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 409 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 394 mSDsluCounter, 1248 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 913 mSDsCounter, 164 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 822 IncrementalHoareTripleChecker+Invalid, 986 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 164 mSolverCounterUnsat, 335 mSDtfsCounter, 822 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 202 GetRequests, 130 SyntacticMatches, 4 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 599 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=178occurred in iteration=5, InterpolantAutomatonStates: 48, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 34 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 31 LocationsWithAnnotation, 369 PreInvPairs, 439 NumberOfFragments, 1294 HoareAnnotationTreeSize, 369 FomulaSimplifications, 704 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 31 FomulaSimplificationsInter, 792 FormulaSimplificationTreeSizeReductionInter, 1.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 221 NumberOfCodeBlocks, 221 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 260 ConstructedInterpolants, 0 QuantifiedInterpolants, 693 SizeOfPredicates, 3 NumberOfNonLiveVariables, 263 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 8 InterpolantComputations, 5 PerfectInterpolantSequences, 57/67 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: 817]: Loop Invariant Derived loop invariant: (((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || ((1 <= aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && (((((1 <= aux-isPumpRunning()-aux && (\old(waterLevel) == waterLevel || waterLevel == 1)) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 935]: Loop Invariant Derived loop invariant: (tmp == 1 && pumpRunning == 0) && waterLevel == 1 - InvariantResult [Line: 576]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 678]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && ((((((pumpRunning == 0 && tmp == 0) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 853]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 577]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && waterLevel == 1) || ((((tmp == 1 && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || (((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || ((((tmp == 1 && pumpRunning == 0) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 935]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 597]: Loop Invariant Derived loop invariant: (((((tmp == 1 && pumpRunning == 0) && splverifierCounter == 0) && waterLevel == 1) || ((((tmp == 1 && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) && pumpRunning == 1)) || (((tmp == 1 && splverifierCounter == 0) && 1 <= switchedOnBeforeTS) && pumpRunning == 1)) || ((((tmp == 1 && pumpRunning == 0) && 2 <= waterLevel) && splverifierCounter == 0) && waterLevel <= 2) - InvariantResult [Line: 92]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 657]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || (\old(waterLevel) == waterLevel && pumpRunning == 1)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 686]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && tmp == 0) && waterLevel == 1)) && ((!(\old(pumpRunning) == 1) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (!(\old(pumpRunning) == 1) || !(1 <= \old(switchedOnBeforeTS))) - InvariantResult [Line: 567]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: (((((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || (((pumpRunning == 0 && 1 < tmp) && tmp <= 2) && \old(waterLevel) == waterLevel)) || (((1 < tmp && tmp <= 2) && \old(waterLevel) == waterLevel) && pumpRunning == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) && (((1 <= switchedOnBeforeTS && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(1 <= \old(switchedOnBeforeTS)))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1))) && ((((((\old(waterLevel) == waterLevel || waterLevel == 1) && 1 <= switchedOnBeforeTS) && pumpRunning == 1) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) <= 2)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 863]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-23 15:55:17,587 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e55ec91-0f75-418e-bc0b-88ba3c13d519/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE