./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b 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_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9 --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 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 --- 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-6b4ec56 [2022-11-20 19:48:04,404 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 19:48:04,406 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 19:48:04,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 19:48:04,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 19:48:04,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 19:48:04,457 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 19:48:04,462 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 19:48:04,465 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 19:48:04,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 19:48:04,472 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 19:48:04,474 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 19:48:04,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 19:48:04,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 19:48:04,479 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 19:48:04,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 19:48:04,483 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 19:48:04,484 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 19:48:04,486 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 19:48:04,493 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 19:48:04,495 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 19:48:04,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 19:48:04,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 19:48:04,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 19:48:04,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 19:48:04,512 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 19:48:04,513 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 19:48:04,515 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 19:48:04,516 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 19:48:04,517 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 19:48:04,518 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 19:48:04,519 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 19:48:04,521 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 19:48:04,522 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 19:48:04,525 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 19:48:04,525 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 19:48:04,526 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 19:48:04,526 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 19:48:04,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 19:48:04,528 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 19:48:04,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 19:48:04,529 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-20 19:48:04,572 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 19:48:04,572 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 19:48:04,573 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 19:48:04,573 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 19:48:04,574 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 19:48:04,574 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 19:48:04,575 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-20 19:48:04,575 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-20 19:48:04,575 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-20 19:48:04,575 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-20 19:48:04,576 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-20 19:48:04,577 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-20 19:48:04,577 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-20 19:48:04,577 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-20 19:48:04,577 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-20 19:48:04,578 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-20 19:48:04,578 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-20 19:48:04,578 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-20 19:48:04,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 19:48:04,579 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 19:48:04,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 19:48:04,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 19:48:04,580 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 19:48:04,580 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 19:48:04,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 19:48:04,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 19:48:04,581 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 19:48:04,581 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 19:48:04,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 19:48:04,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 19:48:04,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 19:48:04,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 19:48:04,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:48:04,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 19:48:04,584 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-20 19:48:04,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 19:48:04,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 19:48:04,584 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-20 19:48:04,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 19:48:04,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 19:48:04,585 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-20 19:48:04,585 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_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 861f07fa59cb0cfcece09c1a4e6ddfbbabbcb5606dbdc5d8efc7c0dfaa196551 [2022-11-20 19:48:04,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 19:48:05,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 19:48:05,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 19:48:05,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 19:48:05,027 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 19:48:05,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/../../sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-11-20 19:48:08,295 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 19:48:08,584 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 19:48:08,585 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c [2022-11-20 19:48:08,606 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/data/c9cbcda3d/fe31b0b2456b42d583b85dc69dc5abd7/FLAG059affa74 [2022-11-20 19:48:08,622 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/data/c9cbcda3d/fe31b0b2456b42d583b85dc69dc5abd7 [2022-11-20 19:48:08,625 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 19:48:08,627 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 19:48:08,628 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 19:48:08,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 19:48:08,635 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 19:48:08,636 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:48:08" (1/1) ... [2022-11-20 19:48:08,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348807b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:08, skipping insertion in model container [2022-11-20 19:48:08,638 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:48:08" (1/1) ... [2022-11-20 19:48:08,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 19:48:08,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 19:48:08,981 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_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2022-11-20 19:48:09,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:48:09,047 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 19:48:09,126 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_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/sv-benchmarks/c/product-lines/minepump_spec4_product19.cil.c[14834,14847] [2022-11-20 19:48:09,136 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 19:48:09,156 INFO L208 MainTranslator]: Completed translation [2022-11-20 19:48:09,156 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09 WrapperNode [2022-11-20 19:48:09,156 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 19:48:09,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 19:48:09,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 19:48:09,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 19:48:09,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,212 INFO L138 Inliner]: procedures = 53, calls = 95, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 166 [2022-11-20 19:48:09,216 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 19:48:09,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 19:48:09,218 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 19:48:09,218 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 19:48:09,231 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,231 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,237 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,246 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,258 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,260 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,274 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,276 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 19:48:09,277 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 19:48:09,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 19:48:09,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 19:48:09,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (1/1) ... [2022-11-20 19:48:09,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 19:48:09,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/z3 [2022-11-20 19:48:09,325 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 19:48:09,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 19:48:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 19:48:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-20 19:48:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-20 19:48:09,375 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-20 19:48:09,375 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-20 19:48:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-20 19:48:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-20 19:48:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-20 19:48:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-20 19:48:09,376 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-20 19:48:09,376 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-20 19:48:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 19:48:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-20 19:48:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-20 19:48:09,377 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 19:48:09,377 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 19:48:09,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 19:48:09,467 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 19:48:09,841 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 19:48:09,958 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 19:48:09,958 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-20 19:48:09,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:09 BoogieIcfgContainer [2022-11-20 19:48:09,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 19:48:09,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 19:48:09,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 19:48:09,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 19:48:09,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 07:48:08" (1/3) ... [2022-11-20 19:48:09,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3581a4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:48:09, skipping insertion in model container [2022-11-20 19:48:09,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:48:09" (2/3) ... [2022-11-20 19:48:09,973 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3581a4aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 07:48:09, skipping insertion in model container [2022-11-20 19:48:09,973 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:09" (3/3) ... [2022-11-20 19:48:09,975 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product19.cil.c [2022-11-20 19:48:09,998 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 19:48:09,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 19:48:10,059 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 19:48:10,068 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;@330393de, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 19:48:10,068 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 19:48:10,074 INFO L276 IsEmpty]: Start isEmpty. Operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-20 19:48:10,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 19:48:10,085 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:48:10,086 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:48:10,086 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:48:10,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:48:10,093 INFO L85 PathProgramCache]: Analyzing trace with hash 788978445, now seen corresponding path program 1 times [2022-11-20 19:48:10,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:48:10,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869090804] [2022-11-20 19:48:10,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:48:10,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:48:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:48:10,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:48:10,373 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:48:10,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869090804] [2022-11-20 19:48:10,375 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869090804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:48:10,375 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:48:10,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 19:48:10,378 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019151596] [2022-11-20 19:48:10,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:48:10,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 19:48:10,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:48:10,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 19:48:10,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 19:48:10,455 INFO L87 Difference]: Start difference. First operand has 52 states, 34 states have (on average 1.4705882352941178) internal successors, (50), 41 states have internal predecessors, (50), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:10,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:48:10,530 INFO L93 Difference]: Finished difference Result 102 states and 141 transitions. [2022-11-20 19:48:10,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 19:48:10,534 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 19:48:10,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:48:10,556 INFO L225 Difference]: With dead ends: 102 [2022-11-20 19:48:10,556 INFO L226 Difference]: Without dead ends: 47 [2022-11-20 19:48:10,560 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 [2022-11-20 19:48:10,565 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 19:48:10,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 52 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 19:48:10,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-20 19:48:10,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2022-11-20 19:48:10,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 31 states have (on average 1.3548387096774193) internal successors, (42), 37 states have internal predecessors, (42), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-20 19:48:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 61 transitions. [2022-11-20 19:48:10,620 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 61 transitions. Word has length 12 [2022-11-20 19:48:10,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:48:10,621 INFO L495 AbstractCegarLoop]: Abstraction has 47 states and 61 transitions. [2022-11-20 19:48:10,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:10,624 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 61 transitions. [2022-11-20 19:48:10,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 19:48:10,628 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:48:10,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:48:10,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 19:48:10,630 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:48:10,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:48:10,632 INFO L85 PathProgramCache]: Analyzing trace with hash -847807381, now seen corresponding path program 1 times [2022-11-20 19:48:10,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:48:10,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365823312] [2022-11-20 19:48:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:48:10,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:48:10,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:48:10,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:48:10,777 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:48:10,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365823312] [2022-11-20 19:48:10,778 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365823312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:48:10,778 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:48:10,778 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 19:48:10,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275803608] [2022-11-20 19:48:10,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:48:10,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 19:48:10,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:48:10,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 19:48:10,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 19:48:10,782 INFO L87 Difference]: Start difference. First operand 47 states and 61 transitions. Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:48:10,832 INFO L93 Difference]: Finished difference Result 66 states and 84 transitions. [2022-11-20 19:48:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 19:48:10,833 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 19:48:10,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:48:10,834 INFO L225 Difference]: With dead ends: 66 [2022-11-20 19:48:10,835 INFO L226 Difference]: Without dead ends: 39 [2022-11-20 19:48:10,835 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 [2022-11-20 19:48:10,837 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 14 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 59 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 [2022-11-20 19:48:10,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 59 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 19:48:10,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-20 19:48:10,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-20 19:48:10,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 32 states have internal predecessors, (36), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-20 19:48:10,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 50 transitions. [2022-11-20 19:48:10,849 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 50 transitions. Word has length 13 [2022-11-20 19:48:10,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:48:10,850 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 50 transitions. [2022-11-20 19:48:10,850 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:10,850 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 50 transitions. [2022-11-20 19:48:10,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 19:48:10,851 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:48:10,852 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:48:10,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 19:48:10,852 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:48:10,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:48:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash -1301086804, now seen corresponding path program 1 times [2022-11-20 19:48:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:48:10,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352775039] [2022-11-20 19:48:10,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:48:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:48:10,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:48:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:48:11,040 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:48:11,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352775039] [2022-11-20 19:48:11,041 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352775039] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:48:11,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:48:11,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 19:48:11,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626455296] [2022-11-20 19:48:11,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:48:11,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 19:48:11,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:48:11,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 19:48:11,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 19:48:11,045 INFO L87 Difference]: Start difference. First operand 39 states and 50 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:11,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:48:11,234 INFO L93 Difference]: Finished difference Result 119 states and 160 transitions. [2022-11-20 19:48:11,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 19:48:11,235 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 19:48:11,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:48:11,237 INFO L225 Difference]: With dead ends: 119 [2022-11-20 19:48:11,238 INFO L226 Difference]: Without dead ends: 82 [2022-11-20 19:48:11,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 19:48:11,240 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 64 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 70 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:48:11,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 114 Invalid, 70 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:48:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-11-20 19:48:11,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 65. [2022-11-20 19:48:11,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 44 states have (on average 1.3863636363636365) internal successors, (61), 53 states have internal predecessors, (61), 11 states have call successors, (11), 9 states have call predecessors, (11), 9 states have return successors, (12), 8 states have call predecessors, (12), 11 states have call successors, (12) [2022-11-20 19:48:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-20 19:48:11,263 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 16 [2022-11-20 19:48:11,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:48:11,264 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-20 19:48:11,264 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:11,265 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-20 19:48:11,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-20 19:48:11,266 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:48:11,266 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:48:11,267 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 19:48:11,267 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:48:11,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:48:11,268 INFO L85 PathProgramCache]: Analyzing trace with hash -153427954, now seen corresponding path program 1 times [2022-11-20 19:48:11,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:48:11,269 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201301192] [2022-11-20 19:48:11,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:48:11,270 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:48:11,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:48:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:48:11,507 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:48:11,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201301192] [2022-11-20 19:48:11,507 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201301192] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:48:11,508 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:48:11,508 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 19:48:11,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226135051] [2022-11-20 19:48:11,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:48:11,509 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 19:48:11,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:48:11,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 19:48:11,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 19:48:11,511 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:11,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:48:11,643 INFO L93 Difference]: Finished difference Result 176 states and 234 transitions. [2022-11-20 19:48:11,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 19:48:11,644 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-11-20 19:48:11,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:48:11,646 INFO L225 Difference]: With dead ends: 176 [2022-11-20 19:48:11,647 INFO L226 Difference]: Without dead ends: 113 [2022-11-20 19:48:11,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-11-20 19:48:11,649 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 43 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:48:11,650 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 117 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:48:11,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-11-20 19:48:11,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 108. [2022-11-20 19:48:11,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 77 states have (on average 1.3376623376623376) internal successors, (103), 88 states have internal predecessors, (103), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (18), 13 states have call predecessors, (18), 16 states have call successors, (18) [2022-11-20 19:48:11,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 137 transitions. [2022-11-20 19:48:11,675 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 137 transitions. Word has length 19 [2022-11-20 19:48:11,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:48:11,676 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 137 transitions. [2022-11-20 19:48:11,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.6) internal successors, (18), 4 states have internal predecessors, (18), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 19:48:11,677 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 137 transitions. [2022-11-20 19:48:11,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-20 19:48:11,679 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 19:48:11,679 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 19:48:11,679 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 19:48:11,680 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 19:48:11,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 19:48:11,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1431102939, now seen corresponding path program 1 times [2022-11-20 19:48:11,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-20 19:48:11,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839869153] [2022-11-20 19:48:11,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 19:48:11,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 19:48:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 19:48:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 19:48:12,050 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-20 19:48:12,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839869153] [2022-11-20 19:48:12,051 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839869153] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 19:48:12,051 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 19:48:12,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-20 19:48:12,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95518859] [2022-11-20 19:48:12,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 19:48:12,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 19:48:12,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-20 19:48:12,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 19:48:12,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-20 19:48:12,061 INFO L87 Difference]: Start difference. First operand 108 states and 137 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 19:48:12,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 19:48:12,304 INFO L93 Difference]: Finished difference Result 164 states and 211 transitions. [2022-11-20 19:48:12,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 19:48:12,306 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2022-11-20 19:48:12,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 19:48:12,308 INFO L225 Difference]: With dead ends: 164 [2022-11-20 19:48:12,308 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 19:48:12,318 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2022-11-20 19:48:12,322 INFO L413 NwaCegarLoop]: 41 mSDtfsCounter, 102 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 19:48:12,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 126 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 19:48:12,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 19:48:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 19:48:12,331 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) [2022-11-20 19:48:12,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 19:48:12,332 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-20 19:48:12,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 19:48:12,332 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 19:48:12,332 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 6 states have internal predecessors, (19), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-20 19:48:12,333 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 19:48:12,333 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 19:48:12,336 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 19:48:12,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 19:48:12,340 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 19:48:13,419 INFO L902 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 587 594) the Hoare annotation is: true [2022-11-20 19:48:13,419 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 587 594) no Hoare annotation was computed. [2022-11-20 19:48:13,420 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 546 552) no Hoare annotation was computed. [2022-11-20 19:48:13,420 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 546 552) the Hoare annotation is: true [2022-11-20 19:48:13,420 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 449 460) the Hoare annotation is: true [2022-11-20 19:48:13,420 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 449 460) no Hoare annotation was computed. [2022-11-20 19:48:13,420 INFO L899 garLoopResultBuilder]: For program point L770-1(line 770) no Hoare annotation was computed. [2022-11-20 19:48:13,420 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 764 793) no Hoare annotation was computed. [2022-11-20 19:48:13,421 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 764 793) the Hoare annotation is: true [2022-11-20 19:48:13,421 INFO L902 garLoopResultBuilder]: At program point L789(lines 764 793) the Hoare annotation is: true [2022-11-20 19:48:13,421 INFO L899 garLoopResultBuilder]: For program point L785(line 785) no Hoare annotation was computed. [2022-11-20 19:48:13,421 INFO L899 garLoopResultBuilder]: For program point L778(lines 778 782) no Hoare annotation was computed. [2022-11-20 19:48:13,421 INFO L902 garLoopResultBuilder]: At program point L778-1(lines 778 782) the Hoare annotation is: true [2022-11-20 19:48:13,421 INFO L902 garLoopResultBuilder]: At program point L774-2(lines 774 788) the Hoare annotation is: true [2022-11-20 19:48:13,422 INFO L902 garLoopResultBuilder]: At program point L770(line 770) the Hoare annotation is: true [2022-11-20 19:48:13,422 INFO L895 garLoopResultBuilder]: At program point L568(line 568) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-20 19:48:13,422 INFO L895 garLoopResultBuilder]: At program point L564(line 564) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-20 19:48:13,423 INFO L895 garLoopResultBuilder]: At program point L573(line 573) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 19:48:13,423 INFO L895 garLoopResultBuilder]: At program point L573-1(lines 554 578) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 19:48:13,423 INFO L895 garLoopResultBuilder]: At program point L533-1(lines 533 539) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 19:48:13,423 INFO L899 garLoopResultBuilder]: For program point L562(lines 562 570) no Hoare annotation was computed. [2022-11-20 19:48:13,424 INFO L895 garLoopResultBuilder]: At program point L690(line 690) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0)))) (and (or .cse0 (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1))))) [2022-11-20 19:48:13,424 INFO L895 garLoopResultBuilder]: At program point L558(lines 558 575) the Hoare annotation is: (let ((.cse2 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (= ~pumpRunning~0 0)) (.cse1 (not (= 0 ~systemActive~0)))) (and (or (and .cse0 (= ~waterLevel~0 1) .cse1) .cse2 (not (= |old(~waterLevel~0)| 1))) (or .cse2 (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) .cse1) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 19:48:13,424 INFO L899 garLoopResultBuilder]: For program point L909(lines 909 915) no Hoare annotation was computed. [2022-11-20 19:48:13,424 INFO L895 garLoopResultBuilder]: At program point L905(lines 905 918) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= ~waterLevel~0 1))))) [2022-11-20 19:48:13,425 INFO L895 garLoopResultBuilder]: At program point L905-1(lines 897 921) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (and .cse1 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~7#1|) (= ~waterLevel~0 1))))) [2022-11-20 19:48:13,425 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 522 545) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) (and .cse1 (= ~waterLevel~0 1))) (or .cse0 (and .cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-20 19:48:13,425 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 525 544) no Hoare annotation was computed. [2022-11-20 19:48:13,425 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 522 545) no Hoare annotation was computed. [2022-11-20 19:48:13,425 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 690) no Hoare annotation was computed. [2022-11-20 19:48:13,426 INFO L895 garLoopResultBuilder]: At program point L754(lines 705 755) the Hoare annotation is: false [2022-11-20 19:48:13,426 INFO L899 garLoopResultBuilder]: For program point L742(lines 742 748) no Hoare annotation was computed. [2022-11-20 19:48:13,426 INFO L895 garLoopResultBuilder]: At program point L676(line 676) the Hoare annotation is: false [2022-11-20 19:48:13,426 INFO L895 garLoopResultBuilder]: At program point L742-2(lines 736 749) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-20 19:48:13,426 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-20 19:48:13,426 INFO L899 garLoopResultBuilder]: For program point L726(lines 726 732) no Hoare annotation was computed. [2022-11-20 19:48:13,426 INFO L899 garLoopResultBuilder]: For program point L726-1(lines 726 732) no Hoare annotation was computed. [2022-11-20 19:48:13,428 INFO L895 garLoopResultBuilder]: At program point L751(lines 706 753) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-20 19:48:13,428 INFO L895 garLoopResultBuilder]: At program point L718(line 718) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-20 19:48:13,428 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 19:48:13,428 INFO L899 garLoopResultBuilder]: For program point L707(lines 706 753) no Hoare annotation was computed. [2022-11-20 19:48:13,429 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 680) no Hoare annotation was computed. [2022-11-20 19:48:13,429 INFO L895 garLoopResultBuilder]: At program point L674-1(lines 674 680) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-20 19:48:13,429 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 749) no Hoare annotation was computed. [2022-11-20 19:48:13,429 INFO L895 garLoopResultBuilder]: At program point L728(line 728) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 (= ~waterLevel~0 1)) (and .cse0 (<= 2 ~waterLevel~0) .cse1))) [2022-11-20 19:48:13,430 INFO L902 garLoopResultBuilder]: At program point L757(lines 696 761) the Hoare annotation is: true [2022-11-20 19:48:13,430 INFO L895 garLoopResultBuilder]: At program point L848(lines 848 855) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1) (= |ULTIMATE.start_main_~tmp~6#1| ~systemActive~0) (not (= 0 ~systemActive~0))) [2022-11-20 19:48:13,430 INFO L902 garLoopResultBuilder]: At program point L848-2(lines 848 855) the Hoare annotation is: true [2022-11-20 19:48:13,430 INFO L899 garLoopResultBuilder]: For program point L716(lines 716 722) no Hoare annotation was computed. [2022-11-20 19:48:13,431 INFO L899 garLoopResultBuilder]: For program point L716-1(lines 716 722) no Hoare annotation was computed. [2022-11-20 19:48:13,431 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 437 448) no Hoare annotation was computed. [2022-11-20 19:48:13,431 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 437 448) the Hoare annotation is: (let ((.cse0 (not (= ~pumpRunning~0 0)))) (and (or .cse0 (= |old(~waterLevel~0)| ~waterLevel~0) (not (<= 2 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) (= ~waterLevel~0 1)))) [2022-11-20 19:48:13,435 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 19:48:13,438 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 19:48:13,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 07:48:13 BoogieIcfgContainer [2022-11-20 19:48:13,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 19:48:13,461 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 19:48:13,461 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 19:48:13,461 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 19:48:13,462 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:48:09" (3/4) ... [2022-11-20 19:48:13,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 19:48:13,472 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-11-20 19:48:13,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-20 19:48:13,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-20 19:48:13,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-20 19:48:13,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-20 19:48:13,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-20 19:48:13,483 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 40 nodes and edges [2022-11-20 19:48:13,485 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-20 19:48:13,485 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-20 19:48:13,486 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 19:48:13,486 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 19:48:13,518 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-20 19:48:13,519 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-20 19:48:13,519 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2022-11-20 19:48:13,520 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) [2022-11-20 19:48:13,521 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) [2022-11-20 19:48:13,521 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) [2022-11-20 19:48:13,522 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(\old(pumpRunning) == 0) || !(2 <= \old(waterLevel))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) [2022-11-20 19:48:13,553 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/witness.graphml [2022-11-20 19:48:13,553 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 19:48:13,554 INFO L158 Benchmark]: Toolchain (without parser) took 4927.07ms. Allocated memory is still 190.8MB. Free memory was 150.8MB in the beginning and 123.2MB in the end (delta: 27.6MB). Peak memory consumption was 28.4MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,554 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 19:48:13,554 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.56ms. Allocated memory is still 190.8MB. Free memory was 150.8MB in the beginning and 132.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,555 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.40ms. Allocated memory is still 190.8MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,555 INFO L158 Benchmark]: Boogie Preprocessor took 58.88ms. Allocated memory is still 190.8MB. Free memory was 130.6MB in the beginning and 129.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,556 INFO L158 Benchmark]: RCFGBuilder took 684.66ms. Allocated memory is still 190.8MB. Free memory was 129.1MB in the beginning and 106.8MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,556 INFO L158 Benchmark]: TraceAbstraction took 3495.50ms. Allocated memory is still 190.8MB. Free memory was 106.1MB in the beginning and 127.4MB in the end (delta: -21.3MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,557 INFO L158 Benchmark]: Witness Printer took 92.29ms. Allocated memory is still 190.8MB. Free memory was 127.4MB in the beginning and 123.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 19:48:13,558 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 123.7MB. Free memory is still 92.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.56ms. Allocated memory is still 190.8MB. Free memory was 150.8MB in the beginning and 132.7MB in the end (delta: 18.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.40ms. Allocated memory is still 190.8MB. Free memory was 132.7MB in the beginning and 130.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 58.88ms. Allocated memory is still 190.8MB. Free memory was 130.6MB in the beginning and 129.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 684.66ms. Allocated memory is still 190.8MB. Free memory was 129.1MB in the beginning and 106.8MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 3495.50ms. Allocated memory is still 190.8MB. Free memory was 106.1MB in the beginning and 127.4MB in the end (delta: -21.3MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * Witness Printer took 92.29ms. Allocated memory is still 190.8MB. Free memory was 127.4MB in the beginning and 123.2MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 690]: 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, 52 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.4s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 223 mSDsluCounter, 468 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 252 mSDsCounter, 58 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 245 IncrementalHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 58 mSolverCounterUnsat, 216 mSDtfsCounter, 245 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=108occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 30 LocationsWithAnnotation, 204 PreInvPairs, 247 NumberOfFragments, 481 HoareAnnotationTreeSize, 204 FomulaSimplifications, 86 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 30 FomulaSimplificationsInter, 1015 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 82 NumberOfCodeBlocks, 82 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 77 ConstructedInterpolants, 0 QuantifiedInterpolants, 300 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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: 774]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 674]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 706]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && splverifierCounter == 0) && waterLevel == 1) || ((pumpRunning == 0 && 2 <= waterLevel) && splverifierCounter == 0) - InvariantResult [Line: 522]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 696]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 690]: Loop Invariant Derived loop invariant: (!(\old(pumpRunning) == 0) || !(2 <= \old(waterLevel))) && (!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) - InvariantResult [Line: 558]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 533]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || (pumpRunning == 0 && waterLevel == 1)) && ((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && waterLevel == 1) && tmp == systemActive) && !(0 == systemActive) - InvariantResult [Line: 554]: Loop Invariant Derived loop invariant: ((((pumpRunning == 0 && waterLevel == 1) && !(0 == systemActive)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) && ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && !(0 == systemActive))) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 764]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 905]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) - InvariantResult [Line: 848]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 897]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || ((pumpRunning == 0 && 2 <= tmp) && \old(waterLevel) == waterLevel)) || !(2 <= \old(waterLevel))) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || ((pumpRunning == 0 && 1 <= tmp) && waterLevel == 1)) RESULT: Ultimate proved your program to be correct! [2022-11-20 19:48:13,589 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4d8436d6-cc93-4f0b-9ca4-ba53aca65b13/bin/utaipan-6cKwYrpEi9/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE