./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b 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_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/config/TaipanReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS --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 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 --- 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-8393723 [2022-11-19 07:38:13,136 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-19 07:38:13,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-19 07:38:13,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-19 07:38:13,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-19 07:38:13,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-19 07:38:13,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-19 07:38:13,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-19 07:38:13,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-19 07:38:13,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-19 07:38:13,192 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-19 07:38:13,199 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-19 07:38:13,200 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-19 07:38:13,207 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-19 07:38:13,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-19 07:38:13,213 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-19 07:38:13,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-19 07:38:13,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-19 07:38:13,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-19 07:38:13,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-19 07:38:13,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-19 07:38:13,229 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-19 07:38:13,230 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-19 07:38:13,232 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-19 07:38:13,236 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-19 07:38:13,240 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-19 07:38:13,240 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-19 07:38:13,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-19 07:38:13,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-19 07:38:13,244 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-19 07:38:13,244 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-19 07:38:13,245 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-19 07:38:13,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-19 07:38:13,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-19 07:38:13,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-19 07:38:13,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-19 07:38:13,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-19 07:38:13,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-19 07:38:13,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-19 07:38:13,253 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-19 07:38:13,253 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-19 07:38:13,254 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/config/svcomp-Reach-32bit-Taipan_Default.epf [2022-11-19 07:38:13,297 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-19 07:38:13,297 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-19 07:38:13,298 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-19 07:38:13,298 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-19 07:38:13,299 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-19 07:38:13,299 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-19 07:38:13,299 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-19 07:38:13,299 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-19 07:38:13,300 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-19 07:38:13,300 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-19 07:38:13,301 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-19 07:38:13,301 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-19 07:38:13,301 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-19 07:38:13,301 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-19 07:38:13,302 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-19 07:38:13,302 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-19 07:38:13,302 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-19 07:38:13,302 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-19 07:38:13,303 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-19 07:38:13,303 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-19 07:38:13,303 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-19 07:38:13,304 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-19 07:38:13,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-19 07:38:13,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-19 07:38:13,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-19 07:38:13,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-19 07:38:13,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-19 07:38:13,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-19 07:38:13,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-19 07:38:13,307 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-19 07:38:13,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-19 07:38:13,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-19 07:38:13,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:13,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-19 07:38:13,308 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-19 07:38:13,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-19 07:38:13,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-19 07:38:13,309 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-19 07:38:13,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-19 07:38:13,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-19 07:38:13,309 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-19 07:38:13,309 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_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 603cfb64133b588a2e9c81e31ac984484d295feb0a468539180131e3ac5a47d6 [2022-11-19 07:38:13,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-19 07:38:13,607 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-19 07:38:13,609 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-19 07:38:13,611 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-19 07:38:13,611 INFO L275 PluginConnector]: CDTParser initialized [2022-11-19 07:38:13,613 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/../../sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2022-11-19 07:38:13,671 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/data/02bda4dd7/69cb017549d4475fb146bdcb771a7891/FLAG24d1fc4d3 [2022-11-19 07:38:14,283 INFO L306 CDTParser]: Found 1 translation units. [2022-11-19 07:38:14,283 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c [2022-11-19 07:38:14,294 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/data/02bda4dd7/69cb017549d4475fb146bdcb771a7891/FLAG24d1fc4d3 [2022-11-19 07:38:14,584 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/data/02bda4dd7/69cb017549d4475fb146bdcb771a7891 [2022-11-19 07:38:14,587 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-19 07:38:14,588 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-19 07:38:14,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:14,590 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-19 07:38:14,594 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-19 07:38:14,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:14" (1/1) ... [2022-11-19 07:38:14,596 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27112ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:14, skipping insertion in model container [2022-11-19 07:38:14,596 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 07:38:14" (1/1) ... [2022-11-19 07:38:14,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-19 07:38:14,654 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-19 07:38:14,914 WARN L234 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_18bb964f-e946-4575-92ae-7cc4c0b3857b/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c[3064,3077] [2022-11-19 07:38:15,034 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:15,043 INFO L203 MainTranslator]: Completed pre-run [2022-11-19 07:38:15,060 WARN L234 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_18bb964f-e946-4575-92ae-7cc4c0b3857b/sv-benchmarks/c/product-lines/minepump_spec5_product45.cil.c[3064,3077] [2022-11-19 07:38:15,102 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-19 07:38:15,119 INFO L208 MainTranslator]: Completed translation [2022-11-19 07:38:15,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15 WrapperNode [2022-11-19 07:38:15,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-19 07:38:15,120 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:15,121 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-19 07:38:15,121 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-19 07:38:15,128 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,165 INFO L138 Inliner]: procedures = 56, calls = 102, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 208 [2022-11-19 07:38:15,166 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-19 07:38:15,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-19 07:38:15,167 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-19 07:38:15,167 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-19 07:38:15,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,179 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,190 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,192 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,193 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,196 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-19 07:38:15,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-19 07:38:15,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-19 07:38:15,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-19 07:38:15,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (1/1) ... [2022-11-19 07:38:15,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-19 07:38:15,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:15,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-19 07:38:15,255 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-19 07:38:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-19 07:38:15,287 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-19 07:38:15,287 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-19 07:38:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-19 07:38:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-19 07:38:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-19 07:38:15,288 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-19 07:38:15,288 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-19 07:38:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-19 07:38:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:38:15,289 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:38:15,289 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2022-11-19 07:38:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2022-11-19 07:38:15,290 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2022-11-19 07:38:15,290 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2022-11-19 07:38:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-19 07:38:15,291 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-19 07:38:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-19 07:38:15,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-19 07:38:15,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-19 07:38:15,402 INFO L235 CfgBuilder]: Building ICFG [2022-11-19 07:38:15,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-19 07:38:15,790 INFO L276 CfgBuilder]: Performing block encoding [2022-11-19 07:38:15,942 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-19 07:38:15,942 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-19 07:38:15,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:15 BoogieIcfgContainer [2022-11-19 07:38:15,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-19 07:38:15,949 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-19 07:38:15,949 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-19 07:38:15,952 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-19 07:38:15,953 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 07:38:14" (1/3) ... [2022-11-19 07:38:15,953 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf984bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:15, skipping insertion in model container [2022-11-19 07:38:15,954 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 07:38:15" (2/3) ... [2022-11-19 07:38:15,956 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cf984bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 07:38:15, skipping insertion in model container [2022-11-19 07:38:15,956 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:15" (3/3) ... [2022-11-19 07:38:15,957 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product45.cil.c [2022-11-19 07:38:15,976 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-19 07:38:15,976 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-19 07:38:16,026 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-19 07:38:16,033 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;@1470d991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-19 07:38:16,033 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-19 07:38:16,037 INFO L276 IsEmpty]: Start isEmpty. Operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-19 07:38:16,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-19 07:38:16,047 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:16,048 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] [2022-11-19 07:38:16,048 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:16,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:16,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1911075339, now seen corresponding path program 1 times [2022-11-19 07:38:16,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:16,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745476351] [2022-11-19 07:38:16,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:16,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:16,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:16,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:38:16,282 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:16,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745476351] [2022-11-19 07:38:16,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745476351] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:16,283 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:16,283 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-19 07:38:16,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283625638] [2022-11-19 07:38:16,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:16,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-19 07:38:16,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:16,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-19 07:38:16,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-19 07:38:16,321 INFO L87 Difference]: Start difference. First operand has 64 states, 40 states have (on average 1.4) internal successors, (56), 48 states have internal predecessors, (56), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) 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) [2022-11-19 07:38:16,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:16,387 INFO L93 Difference]: Finished difference Result 126 states and 169 transitions. [2022-11-19 07:38:16,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-19 07:38:16,390 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 [2022-11-19 07:38:16,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:16,399 INFO L225 Difference]: With dead ends: 126 [2022-11-19 07:38:16,399 INFO L226 Difference]: Without dead ends: 59 [2022-11-19 07:38:16,403 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 [2022-11-19 07:38:16,406 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:16,407 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 64 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:38:16,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-19 07:38:16,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-19 07:38:16,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2972972972972974) internal successors, (48), 44 states have internal predecessors, (48), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:38:16,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 75 transitions. [2022-11-19 07:38:16,450 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 75 transitions. Word has length 21 [2022-11-19 07:38:16,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:16,451 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 75 transitions. [2022-11-19 07:38:16,451 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) [2022-11-19 07:38:16,451 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 75 transitions. [2022-11-19 07:38:16,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-19 07:38:16,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:16,454 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] [2022-11-19 07:38:16,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-19 07:38:16,454 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:16,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:16,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1425674059, now seen corresponding path program 1 times [2022-11-19 07:38:16,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:16,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659724432] [2022-11-19 07:38:16,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:16,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:16,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:16,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:38:16,581 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:16,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659724432] [2022-11-19 07:38:16,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659724432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:16,582 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:16,582 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:16,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960606869] [2022-11-19 07:38:16,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:16,585 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:16,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:16,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:16,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:16,591 INFO L87 Difference]: Start difference. First operand 59 states and 75 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 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) [2022-11-19 07:38:16,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:16,675 INFO L93 Difference]: Finished difference Result 116 states and 151 transitions. [2022-11-19 07:38:16,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:16,687 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), 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 24 [2022-11-19 07:38:16,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:16,689 INFO L225 Difference]: With dead ends: 116 [2022-11-19 07:38:16,689 INFO L226 Difference]: Without dead ends: 59 [2022-11-19 07:38:16,690 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 [2022-11-19 07:38:16,691 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 62 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:16,692 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 58 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:38:16,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2022-11-19 07:38:16,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2022-11-19 07:38:16,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59 states, 37 states have (on average 1.2702702702702702) internal successors, (47), 44 states have internal predecessors, (47), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-19 07:38:16,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 74 transitions. [2022-11-19 07:38:16,720 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 74 transitions. Word has length 24 [2022-11-19 07:38:16,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:16,722 INFO L495 AbstractCegarLoop]: Abstraction has 59 states and 74 transitions. [2022-11-19 07:38:16,722 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), 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) [2022-11-19 07:38:16,722 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 74 transitions. [2022-11-19 07:38:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-19 07:38:16,724 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:16,724 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:16,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-19 07:38:16,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:16,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:16,727 INFO L85 PathProgramCache]: Analyzing trace with hash 149706667, now seen corresponding path program 1 times [2022-11-19 07:38:16,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:16,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601125544] [2022-11-19 07:38:16,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:16,728 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:16,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:16,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-19 07:38:16,886 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:16,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601125544] [2022-11-19 07:38:16,887 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601125544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:16,887 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:16,887 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-19 07:38:16,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352889935] [2022-11-19 07:38:16,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:16,888 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-19 07:38:16,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:16,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-19 07:38:16,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-19 07:38:16,889 INFO L87 Difference]: Start difference. First operand 59 states and 74 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:38:17,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:17,168 INFO L93 Difference]: Finished difference Result 164 states and 226 transitions. [2022-11-19 07:38:17,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:38:17,169 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2022-11-19 07:38:17,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:17,170 INFO L225 Difference]: With dead ends: 164 [2022-11-19 07:38:17,171 INFO L226 Difference]: Without dead ends: 107 [2022-11-19 07:38:17,172 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-19 07:38:17,173 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 57 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:17,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 307 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-19 07:38:17,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-19 07:38:17,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 103. [2022-11-19 07:38:17,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 73 states have internal predecessors, (80), 22 states have call successors, (22), 16 states have call predecessors, (22), 14 states have return successors, (28), 20 states have call predecessors, (28), 20 states have call successors, (28) [2022-11-19 07:38:17,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 130 transitions. [2022-11-19 07:38:17,209 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 130 transitions. Word has length 31 [2022-11-19 07:38:17,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:17,209 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 130 transitions. [2022-11-19 07:38:17,210 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-19 07:38:17,210 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 130 transitions. [2022-11-19 07:38:17,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-19 07:38:17,211 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:17,211 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:17,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-19 07:38:17,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:17,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:17,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1933905367, now seen corresponding path program 1 times [2022-11-19 07:38:17,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:17,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199963871] [2022-11-19 07:38:17,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:17,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:17,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:38:17,293 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:17,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199963871] [2022-11-19 07:38:17,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199963871] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:17,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:17,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-19 07:38:17,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113710620] [2022-11-19 07:38:17,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:17,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-19 07:38:17,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:17,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-19 07:38:17,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-19 07:38:17,297 INFO L87 Difference]: Start difference. First operand 103 states and 130 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:38:17,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:17,361 INFO L93 Difference]: Finished difference Result 162 states and 198 transitions. [2022-11-19 07:38:17,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-19 07:38:17,363 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2022-11-19 07:38:17,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:17,365 INFO L225 Difference]: With dead ends: 162 [2022-11-19 07:38:17,367 INFO L226 Difference]: Without dead ends: 87 [2022-11-19 07:38:17,368 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 [2022-11-19 07:38:17,373 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 7 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:17,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 89 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-19 07:38:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-11-19 07:38:17,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-11-19 07:38:17,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 56 states have (on average 1.2142857142857142) internal successors, (68), 63 states have internal predecessors, (68), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (20), 16 states have call predecessors, (20), 16 states have call successors, (20) [2022-11-19 07:38:17,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 104 transitions. [2022-11-19 07:38:17,404 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 104 transitions. Word has length 34 [2022-11-19 07:38:17,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:17,404 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 104 transitions. [2022-11-19 07:38:17,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2022-11-19 07:38:17,405 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 104 transitions. [2022-11-19 07:38:17,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-19 07:38:17,408 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:17,408 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:17,408 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-19 07:38:17,409 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:17,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:17,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2003657004, now seen corresponding path program 1 times [2022-11-19 07:38:17,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:17,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833223340] [2022-11-19 07:38:17,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:17,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:17,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:38:17,826 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:17,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833223340] [2022-11-19 07:38:17,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833223340] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:17,826 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:17,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:38:17,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606648583] [2022-11-19 07:38:17,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:17,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:38:17,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:17,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:38:17,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:38:17,829 INFO L87 Difference]: Start difference. First operand 87 states and 104 transitions. Second operand has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:38:18,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:18,327 INFO L93 Difference]: Finished difference Result 301 states and 372 transitions. [2022-11-19 07:38:18,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-19 07:38:18,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) Word has length 36 [2022-11-19 07:38:18,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:18,341 INFO L225 Difference]: With dead ends: 301 [2022-11-19 07:38:18,343 INFO L226 Difference]: Without dead ends: 216 [2022-11-19 07:38:18,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:38:18,345 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 169 mSDsluCounter, 324 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:18,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 426 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:38:18,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2022-11-19 07:38:18,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 208. [2022-11-19 07:38:18,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 135 states have (on average 1.1925925925925926) internal successors, (161), 147 states have internal predecessors, (161), 39 states have call successors, (39), 34 states have call predecessors, (39), 33 states have return successors, (51), 36 states have call predecessors, (51), 39 states have call successors, (51) [2022-11-19 07:38:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 251 transitions. [2022-11-19 07:38:18,400 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 251 transitions. Word has length 36 [2022-11-19 07:38:18,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:18,400 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 251 transitions. [2022-11-19 07:38:18,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.7142857142857144) internal successors, (26), 8 states have internal predecessors, (26), 4 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 4 states have call successors, (4) [2022-11-19 07:38:18,401 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 251 transitions. [2022-11-19 07:38:18,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-19 07:38:18,402 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:18,402 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:18,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-19 07:38:18,402 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:18,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:18,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1526016149, now seen corresponding path program 1 times [2022-11-19 07:38:18,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:18,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830465119] [2022-11-19 07:38:18,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:18,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:18,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:18,621 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:38:18,622 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:18,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830465119] [2022-11-19 07:38:18,622 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830465119] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:18,622 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:18,622 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-19 07:38:18,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054157744] [2022-11-19 07:38:18,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:18,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-19 07:38:18,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:18,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-19 07:38:18,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-19 07:38:18,624 INFO L87 Difference]: Start difference. First operand 208 states and 251 transitions. Second operand has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 07:38:19,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:19,308 INFO L93 Difference]: Finished difference Result 556 states and 709 transitions. [2022-11-19 07:38:19,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-19 07:38:19,309 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 39 [2022-11-19 07:38:19,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:19,312 INFO L225 Difference]: With dead ends: 556 [2022-11-19 07:38:19,312 INFO L226 Difference]: Without dead ends: 384 [2022-11-19 07:38:19,313 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=213, Unknown=0, NotChecked=0, Total=306 [2022-11-19 07:38:19,314 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 201 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 99 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 99 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:19,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 264 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [99 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-19 07:38:19,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384 states. [2022-11-19 07:38:19,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384 to 339. [2022-11-19 07:38:19,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 221 states have (on average 1.1809954751131222) internal successors, (261), 243 states have internal predecessors, (261), 62 states have call successors, (62), 52 states have call predecessors, (62), 55 states have return successors, (86), 58 states have call predecessors, (86), 62 states have call successors, (86) [2022-11-19 07:38:19,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 409 transitions. [2022-11-19 07:38:19,370 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 409 transitions. Word has length 39 [2022-11-19 07:38:19,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:19,370 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 409 transitions. [2022-11-19 07:38:19,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 3.857142857142857) internal successors, (27), 7 states have internal predecessors, (27), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2022-11-19 07:38:19,371 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 409 transitions. [2022-11-19 07:38:19,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-19 07:38:19,373 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:19,373 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2022-11-19 07:38:19,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-19 07:38:19,373 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:19,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:19,374 INFO L85 PathProgramCache]: Analyzing trace with hash 1605835483, now seen corresponding path program 1 times [2022-11-19 07:38:19,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:19,375 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157012932] [2022-11-19 07:38:19,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:19,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:19,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:19,543 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-19 07:38:19,543 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:19,543 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157012932] [2022-11-19 07:38:19,543 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157012932] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-19 07:38:19,544 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-19 07:38:19,544 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-19 07:38:19,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820660602] [2022-11-19 07:38:19,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-19 07:38:19,545 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-19 07:38:19,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:19,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-19 07:38:19,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-19 07:38:19,546 INFO L87 Difference]: Start difference. First operand 339 states and 409 transitions. Second operand has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-19 07:38:19,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:19,797 INFO L93 Difference]: Finished difference Result 692 states and 837 transitions. [2022-11-19 07:38:19,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-19 07:38:19,798 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) Word has length 67 [2022-11-19 07:38:19,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:19,800 INFO L225 Difference]: With dead ends: 692 [2022-11-19 07:38:19,800 INFO L226 Difference]: Without dead ends: 367 [2022-11-19 07:38:19,802 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-11-19 07:38:19,803 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 76 mSDsluCounter, 91 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:19,803 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 125 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-19 07:38:19,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-11-19 07:38:19,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 348. [2022-11-19 07:38:19,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 230 states have (on average 1.1695652173913043) internal successors, (269), 250 states have internal predecessors, (269), 60 states have call successors, (60), 50 states have call predecessors, (60), 57 states have return successors, (87), 60 states have call predecessors, (87), 60 states have call successors, (87) [2022-11-19 07:38:19,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 416 transitions. [2022-11-19 07:38:19,887 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 416 transitions. Word has length 67 [2022-11-19 07:38:19,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:19,887 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 416 transitions. [2022-11-19 07:38:19,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.142857142857143) internal successors, (43), 7 states have internal predecessors, (43), 4 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 3 states have call predecessors, (9), 4 states have call successors, (9) [2022-11-19 07:38:19,888 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 416 transitions. [2022-11-19 07:38:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2022-11-19 07:38:19,890 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:19,891 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:19,891 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-19 07:38:19,891 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:19,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:19,892 INFO L85 PathProgramCache]: Analyzing trace with hash -223573989, now seen corresponding path program 1 times [2022-11-19 07:38:19,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:19,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758129496] [2022-11-19 07:38:19,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:19,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:20,260 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 3 proven. 16 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-19 07:38:20,261 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:20,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758129496] [2022-11-19 07:38:20,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758129496] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:38:20,261 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120930269] [2022-11-19 07:38:20,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:20,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:20,262 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:20,266 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:20,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-19 07:38:20,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:20,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-19 07:38:20,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:20,529 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 16 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-19 07:38:20,530 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:38:20,670 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-11-19 07:38:20,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120930269] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:38:20,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1366534115] [2022-11-19 07:38:20,704 INFO L159 IcfgInterpreter]: Started Sifa with 47 locations of interest [2022-11-19 07:38:20,705 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:38:20,708 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:38:20,728 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:38:20,728 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:38:25,341 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 141 for LOIs [2022-11-19 07:38:25,368 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 34 for LOIs [2022-11-19 07:38:25,921 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 53 for LOIs [2022-11-19 07:38:25,945 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 34 for LOIs [2022-11-19 07:38:26,160 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 60 for LOIs [2022-11-19 07:38:26,176 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 32 for LOIs [2022-11-19 07:38:26,178 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:38:34,163 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '5671#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (<= 0 (+ 2147483648 |old(~pumpRunning~0)|)) (= ~head~0.offset 0) (<= |old(~switchedOnBeforeTS~0)| 2147483647) (<= |old(~pumpRunning~0)| 2147483647) (= 1 ~systemActive~0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 (+ |old(~switchedOnBeforeTS~0)| 2147483648)) (<= 0 (+ |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483648)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 2147483647) (= ~head~0.base 0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0))' at error location [2022-11-19 07:38:34,163 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:38:34,164 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:38:34,164 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 15 [2022-11-19 07:38:34,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333113707] [2022-11-19 07:38:34,164 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:38:34,165 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-19 07:38:34,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:34,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-19 07:38:34,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2022-11-19 07:38:34,167 INFO L87 Difference]: Start difference. First operand 348 states and 416 transitions. Second operand has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-19 07:38:35,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:35,591 INFO L93 Difference]: Finished difference Result 632 states and 785 transitions. [2022-11-19 07:38:35,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-11-19 07:38:35,592 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) Word has length 71 [2022-11-19 07:38:35,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:35,594 INFO L225 Difference]: With dead ends: 632 [2022-11-19 07:38:35,594 INFO L226 Difference]: Without dead ends: 339 [2022-11-19 07:38:35,597 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 260 GetRequests, 184 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1916 ImplicationChecksByTransitivity, 8.8s TimeCoverageRelationStatistics Valid=704, Invalid=4552, Unknown=0, NotChecked=0, Total=5256 [2022-11-19 07:38:35,598 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 581 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 540 mSolverCounterSat, 429 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 429 IncrementalHoareTripleChecker+Valid, 540 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:35,598 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 308 Invalid, 969 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [429 Valid, 540 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-19 07:38:35,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2022-11-19 07:38:35,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 309. [2022-11-19 07:38:35,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 309 states, 200 states have (on average 1.175) internal successors, (235), 221 states have internal predecessors, (235), 57 states have call successors, (57), 49 states have call predecessors, (57), 51 states have return successors, (79), 53 states have call predecessors, (79), 57 states have call successors, (79) [2022-11-19 07:38:35,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 371 transitions. [2022-11-19 07:38:35,647 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 371 transitions. Word has length 71 [2022-11-19 07:38:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:35,647 INFO L495 AbstractCegarLoop]: Abstraction has 309 states and 371 transitions. [2022-11-19 07:38:35,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 5.75) internal successors, (69), 13 states have internal predecessors, (69), 5 states have call successors, (17), 3 states have call predecessors, (17), 6 states have return successors, (20), 7 states have call predecessors, (20), 5 states have call successors, (20) [2022-11-19 07:38:35,648 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 371 transitions. [2022-11-19 07:38:35,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-11-19 07:38:35,649 INFO L187 NwaCegarLoop]: Found error trace [2022-11-19 07:38:35,649 INFO L195 NwaCegarLoop]: trace histogram [4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:35,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-19 07:38:35,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-11-19 07:38:35,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-19 07:38:35,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-19 07:38:35,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1554175055, now seen corresponding path program 1 times [2022-11-19 07:38:35,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-19 07:38:35,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025291731] [2022-11-19 07:38:35,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:35,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-19 07:38:35,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:36,248 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 6 proven. 18 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-19 07:38:36,248 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-19 07:38:36,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025291731] [2022-11-19 07:38:36,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025291731] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-19 07:38:36,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668452429] [2022-11-19 07:38:36,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-19 07:38:36,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:36,249 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 [2022-11-19 07:38:36,251 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-19 07:38:36,279 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-19 07:38:36,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-19 07:38:36,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 35 conjunts are in the unsatisfiable core [2022-11-19 07:38:36,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-19 07:38:36,962 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 9 proven. 25 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-19 07:38:36,962 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-19 07:38:37,657 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 21 proven. 1 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-11-19 07:38:37,657 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668452429] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-19 07:38:37,657 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [555368438] [2022-11-19 07:38:37,660 INFO L159 IcfgInterpreter]: Started Sifa with 43 locations of interest [2022-11-19 07:38:37,660 INFO L166 IcfgInterpreter]: Building call graph [2022-11-19 07:38:37,661 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2022-11-19 07:38:37,661 INFO L176 IcfgInterpreter]: Starting interpretation [2022-11-19 07:38:37,661 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2022-11-19 07:38:41,188 INFO L197 IcfgInterpreter]: Interpreting procedure waterRise with input of size 143 for LOIs [2022-11-19 07:38:41,218 INFO L197 IcfgInterpreter]: Interpreting procedure timeShift with input of size 31 for LOIs [2022-11-19 07:38:41,378 INFO L197 IcfgInterpreter]: Interpreting procedure isPumpRunning with input of size 58 for LOIs [2022-11-19 07:38:41,393 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__methaneQuery with input of size 26 for LOIs [2022-11-19 07:38:41,616 INFO L197 IcfgInterpreter]: Interpreting procedure isMethaneAlarm with input of size 29 for LOIs [2022-11-19 07:38:41,619 INFO L197 IcfgInterpreter]: Interpreting procedure processEnvironment__wrappee__base with input of size 28 for LOIs [2022-11-19 07:38:41,621 INFO L180 IcfgInterpreter]: Interpretation finished [2022-11-19 07:38:47,954 INFO L133 SifaRunner]: Sifa could not show that error location is unreachable, found '7654#(and (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 0)) (<= |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1| 1) (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__3_~tmp___0~0#1|) (= ~methaneLevelCritical~0 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| ~waterLevel~0) (= ~head~0.offset 0) (= 1 ~systemActive~0) (= |old(~pumpRunning~0)| 0) (= |timeShift_getWaterLevel_~retValue_acc~1#1| |timeShift_getWaterLevel_#res#1|) (<= 0 ~pumpRunning~0) (= ~head~0.base 0) (<= 0 (+ |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483648)) (= |#NULL.offset| 0) (not (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2)) (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| |timeShift_getWaterLevel_#res#1|) (= ~switchedOnBeforeTS~0 0) (<= 0 |#StackHeapBarrier|) (<= |timeShift_getWaterLevel_~retValue_acc~1#1| 2147483647) (= ~cleanupTimeShifts~0 4) (= |#NULL.base| 0) (= |old(~switchedOnBeforeTS~0)| 0))' at error location [2022-11-19 07:38:47,954 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: ALGORITHM_FAILED [2022-11-19 07:38:47,955 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-19 07:38:47,955 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 14] total 32 [2022-11-19 07:38:47,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172888938] [2022-11-19 07:38:47,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-19 07:38:47,956 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-11-19 07:38:47,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-19 07:38:47,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-11-19 07:38:47,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=487, Invalid=3419, Unknown=0, NotChecked=0, Total=3906 [2022-11-19 07:38:47,958 INFO L87 Difference]: Start difference. First operand 309 states and 371 transitions. Second operand has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-19 07:38:50,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-19 07:38:50,765 INFO L93 Difference]: Finished difference Result 773 states and 968 transitions. [2022-11-19 07:38:50,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-11-19 07:38:50,765 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) Word has length 72 [2022-11-19 07:38:50,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-19 07:38:50,766 INFO L225 Difference]: With dead ends: 773 [2022-11-19 07:38:50,766 INFO L226 Difference]: Without dead ends: 0 [2022-11-19 07:38:50,771 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 169 SyntacticMatches, 9 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4022 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=1633, Invalid=9287, Unknown=0, NotChecked=0, Total=10920 [2022-11-19 07:38:50,772 INFO L413 NwaCegarLoop]: 62 mSDtfsCounter, 925 mSDsluCounter, 373 mSDsCounter, 0 mSdLazyCounter, 1024 mSolverCounterSat, 689 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 1713 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 689 IncrementalHoareTripleChecker+Valid, 1024 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-19 07:38:50,772 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [926 Valid, 435 Invalid, 1713 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [689 Valid, 1024 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-19 07:38:50,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-19 07:38:50,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-19 07:38:50,773 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) [2022-11-19 07:38:50,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-19 07:38:50,774 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 72 [2022-11-19 07:38:50,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-19 07:38:50,774 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-19 07:38:50,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 30 states have (on average 4.033333333333333) internal successors, (121), 30 states have internal predecessors, (121), 18 states have call successors, (31), 13 states have call predecessors, (31), 13 states have return successors, (29), 15 states have call predecessors, (29), 18 states have call successors, (29) [2022-11-19 07:38:50,774 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-19 07:38:50,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-19 07:38:50,777 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-19 07:38:50,788 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-19 07:38:50,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-19 07:38:50,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-19 07:38:55,989 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 610 616) no Hoare annotation was computed. [2022-11-19 07:38:55,989 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 610 616) the Hoare annotation is: true [2022-11-19 07:38:55,989 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-19 07:38:55,989 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-19 07:38:55,989 INFO L899 garLoopResultBuilder]: For program point L897(lines 897 901) no Hoare annotation was computed. [2022-11-19 07:38:55,990 INFO L902 garLoopResultBuilder]: At program point L897-1(lines 897 901) the Hoare annotation is: true [2022-11-19 07:38:55,990 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 883 912) no Hoare annotation was computed. [2022-11-19 07:38:55,990 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 883 912) the Hoare annotation is: true [2022-11-19 07:38:55,990 INFO L902 garLoopResultBuilder]: At program point L893-2(lines 893 907) the Hoare annotation is: true [2022-11-19 07:38:55,990 INFO L902 garLoopResultBuilder]: At program point L889(line 889) the Hoare annotation is: true [2022-11-19 07:38:55,990 INFO L899 garLoopResultBuilder]: For program point L889-1(line 889) no Hoare annotation was computed. [2022-11-19 07:38:55,991 INFO L902 garLoopResultBuilder]: At program point L908(lines 883 912) the Hoare annotation is: true [2022-11-19 07:38:55,991 INFO L899 garLoopResultBuilder]: For program point L904(line 904) no Hoare annotation was computed. [2022-11-19 07:38:55,991 INFO L895 garLoopResultBuilder]: At program point L155(line 155) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))))) [2022-11-19 07:38:55,991 INFO L895 garLoopResultBuilder]: At program point L663(line 663) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse6 (not (<= |old(~waterLevel~0)| 1))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (= ~pumpRunning~0 0)) (.cse4 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse5 (= ~pumpRunning~0 ~switchedOnBeforeTS~0))) (and (or (and .cse0 .cse1) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse3 .cse4 .cse5) (not (= |old(~waterLevel~0)| 2))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) .cse6 .cse2 .cse1) (or .cse6 .cse0 .cse2 (and .cse3 .cse4 .cse5)))) [2022-11-19 07:38:55,992 INFO L895 garLoopResultBuilder]: At program point L663-1(lines 644 668) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 1))) (let ((.cse1 (and (= 2 ~waterLevel~0) .cse11 .cse8 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (or .cse7 .cse5))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse11)) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (or .cse8 (= ~waterLevel~0 1)))) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 (<= ~waterLevel~0 1) .cse3))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse7 .cse8 .cse4) .cse1 .cse9) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse10)) .cse4 .cse5) .cse0 (and .cse6 .cse7 .cse10) .cse2 .cse9))))) [2022-11-19 07:38:55,992 INFO L895 garLoopResultBuilder]: At program point L597-1(lines 597 603) the Hoare annotation is: (let ((.cse11 (= 1 ~systemActive~0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse7 (= ~pumpRunning~0 0)) (.cse5 (= ~pumpRunning~0 1))) (let ((.cse1 (and (= 2 ~waterLevel~0) .cse11 .cse8 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse5) (or .cse7 .cse5))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse0 (not .cse11)) (.cse6 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse9 (not (< |old(~waterLevel~0)| 3)))) (and (let ((.cse3 (or .cse8 (= ~waterLevel~0 1)))) (or .cse0 .cse1 .cse2 (not (= |old(~waterLevel~0)| 2)) (and .cse3 .cse4 .cse5) (and .cse6 .cse7 (<= ~waterLevel~0 1) .cse3))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse7 .cse8 .cse4) .cse1 .cse9) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse10)) .cse4 .cse5) .cse0 (and .cse6 .cse7 .cse10) .cse2 .cse9))))) [2022-11-19 07:38:55,992 INFO L895 garLoopResultBuilder]: At program point L556(line 556) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse5 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse10 (= ~pumpRunning~0 1)) (.cse1 (not (= 1 ~systemActive~0))) (.cse7 (not (= ~switchedOnBeforeTS~0 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse6 (not (= |old(~pumpRunning~0)| 1)))) (and (or (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and .cse2 .cse3 .cse4 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1|))) (or .cse0 .cse1 .cse5) (let ((.cse8 (<= ~waterLevel~0 1)) (.cse9 (or .cse3 (= ~waterLevel~0 1)))) (or .cse1 .cse6 .cse5 (and .cse7 .cse2 .cse8 .cse9) (and .cse8 .cse9 .cse4 .cse10))) (let ((.cse11 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (and (or (<= (+ ~waterLevel~0 1) |old(~waterLevel~0)|) (and (not (< 0 ~waterLevel~0)) .cse11)) .cse4 .cse10) .cse1 (and .cse7 .cse2 .cse11) .cse6 (not (< |old(~waterLevel~0)| 3)))))) [2022-11-19 07:38:55,993 INFO L899 garLoopResultBuilder]: For program point L556-1(line 556) no Hoare annotation was computed. [2022-11-19 07:38:55,993 INFO L899 garLoopResultBuilder]: For program point L590-2(lines 586 608) no Hoare annotation was computed. [2022-11-19 07:38:55,993 INFO L895 garLoopResultBuilder]: At program point L652(lines 652 660) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-19 07:38:55,993 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 665) no Hoare annotation was computed. [2022-11-19 07:38:55,993 INFO L895 garLoopResultBuilder]: At program point L541(line 541) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 (and .cse7 .cse8 .cse4)) (or .cse9 .cse6 .cse1 .cse3 .cse10) (or (and .cse6 .cse2) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8) .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse5 (and .cse8 .cse4 (= ~pumpRunning~0 1)) .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse9 .cse7 .cse8) .cse10))) [2022-11-19 07:38:55,994 INFO L895 garLoopResultBuilder]: At program point L541-1(line 541) the Hoare annotation is: (let ((.cse6 (not (= |old(~pumpRunning~0)| 1))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse7 (not (= |old(~waterLevel~0)| 2))) (.cse3 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse4 (= ~pumpRunning~0 |timeShift___utac_acc__Specification5_spec__2_#t~ret32#1|)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3) (or .cse0 (and .cse4 .cse5 .cse3 (= ~pumpRunning~0 1)) .cse2 .cse6 (not (< |old(~waterLevel~0)| 3))) (or (and .cse1 .cse6) .cse2 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse4 .cse5) .cse7) (or .cse0 .cse1 .cse2 .cse7 .cse3) (or (not (<= |old(~waterLevel~0)| 1)) .cse1 .cse2 (and (= ~pumpRunning~0 0) .cse4 .cse5)))) [2022-11-19 07:38:55,994 INFO L899 garLoopResultBuilder]: For program point L558(lines 558 568) no Hoare annotation was computed. [2022-11-19 07:38:55,994 INFO L899 garLoopResultBuilder]: For program point L554(lines 554 571) no Hoare annotation was computed. [2022-11-19 07:38:55,994 INFO L895 garLoopResultBuilder]: At program point L554-1(lines 546 574) the Hoare annotation is: (let ((.cse13 (= |old(~waterLevel~0)| ~waterLevel~0))) (let ((.cse11 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse12 (= ~pumpRunning~0 1)) (.cse7 (not (= ~switchedOnBeforeTS~0 0))) (.cse8 (= ~pumpRunning~0 0)) (.cse14 (<= ~waterLevel~0 1)) (.cse9 (= 1 ~systemActive~0)) (.cse15 (or .cse13 (= ~waterLevel~0 1)))) (let ((.cse1 (and .cse7 .cse8 .cse14 .cse9 .cse15)) (.cse4 (not (= |old(~waterLevel~0)| 2))) (.cse5 (and .cse14 .cse15 .cse11 .cse12)) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse3 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (not .cse9)) (.cse6 (and (= |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1| 2) (= 2 ~waterLevel~0) .cse9 .cse13 (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse12) (or .cse8 .cse12)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse1 .cse2 .cse6 .cse3 .cse4 .cse5) (let ((.cse10 (<= ~waterLevel~0 |old(~waterLevel~0)|))) (or .cse0 (not (<= |old(~waterLevel~0)| 1)) .cse2 (and .cse7 .cse8 .cse9 .cse10) .cse3 (and (not (< 0 ~waterLevel~0)) .cse10 .cse11 .cse12))) (or (not (= |old(~pumpRunning~0)| 0)) .cse2 .cse6 (and .cse8 .cse9 .cse13 .cse11 (= |old(~waterLevel~0)| |timeShift___utac_acc__Specification5_spec__3_~tmp~3#1|)) (not (< |old(~waterLevel~0)| 3))))))) [2022-11-19 07:38:55,995 INFO L895 garLoopResultBuilder]: At program point L658(line 658) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-19 07:38:55,995 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 583 609) the Hoare annotation is: (let ((.cse3 (not (= |old(~waterLevel~0)| 2))) (.cse0 (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|))) (.cse4 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse2 (not (= |old(~pumpRunning~0)| 1))) (.cse5 (not (<= |old(~waterLevel~0)| 1))) (.cse6 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse9 (not (= ~switchedOnBeforeTS~0 0))) (.cse7 (= ~pumpRunning~0 0)) (.cse8 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse10 (= |old(~switchedOnBeforeTS~0)| 0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse0 .cse5 .cse6 .cse1 (and .cse7 .cse8 .cse4)) (or .cse9 .cse6 .cse1 .cse3 .cse10) (or (and .cse6 .cse2) .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse8) .cse3) (or .cse0 .cse6 .cse1 .cse3 .cse4) (or .cse0 .cse5 (and .cse8 .cse4 (= ~pumpRunning~0 1)) .cse1 .cse2) (or .cse5 .cse6 .cse1 (and .cse9 .cse7 .cse8) .cse10))) [2022-11-19 07:38:55,995 INFO L899 garLoopResultBuilder]: For program point L559(lines 559 565) no Hoare annotation was computed. [2022-11-19 07:38:55,995 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 583 609) no Hoare annotation was computed. [2022-11-19 07:38:55,996 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= |old(~pumpRunning~0)| 1))) (.cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (.cse3 (= ~pumpRunning~0 1))) (and (or (not (= |old(~switchedOnBeforeTS~0)| |old(~pumpRunning~0)|)) (not (<= |old(~waterLevel~0)| 1)) .cse0 .cse1 (and (not (< 0 ~waterLevel~0)) (<= ~waterLevel~0 |old(~waterLevel~0)|) .cse2 .cse3)) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< |old(~waterLevel~0)| 3))) (or .cse0 .cse1 (and (= ~waterLevel~0 1) .cse2 .cse3) (not (= |old(~waterLevel~0)| 2))))) [2022-11-19 07:38:55,996 INFO L899 garLoopResultBuilder]: For program point L650-1(line 650) no Hoare annotation was computed. [2022-11-19 07:38:55,996 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2022-11-19 07:38:55,996 INFO L895 garLoopResultBuilder]: At program point L832(lines 789 834) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse2 (or .cse4 .cse3)) (and .cse4 .cse0 .cse1 .cse2))) [2022-11-19 07:38:55,996 INFO L899 garLoopResultBuilder]: For program point L799(lines 799 805) no Hoare annotation was computed. [2022-11-19 07:38:55,996 INFO L899 garLoopResultBuilder]: For program point L799-1(lines 799 805) no Hoare annotation was computed. [2022-11-19 07:38:55,997 INFO L895 garLoopResultBuilder]: At program point L965(lines 965 972) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) [2022-11-19 07:38:55,997 INFO L902 garLoopResultBuilder]: At program point L965-2(lines 965 972) the Hoare annotation is: true [2022-11-19 07:38:55,997 INFO L902 garLoopResultBuilder]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2022-11-19 07:38:55,997 INFO L895 garLoopResultBuilder]: At program point L825-2(lines 819 830) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-19 07:38:55,997 INFO L899 garLoopResultBuilder]: For program point L809(lines 809 815) no Hoare annotation was computed. [2022-11-19 07:38:55,997 INFO L899 garLoopResultBuilder]: For program point L809-1(lines 809 815) no Hoare annotation was computed. [2022-11-19 07:38:55,998 INFO L902 garLoopResultBuilder]: At program point L838(lines 779 842) the Hoare annotation is: true [2022-11-19 07:38:55,998 INFO L895 garLoopResultBuilder]: At program point L801(line 801) the Hoare annotation is: (let ((.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (<= ~waterLevel~0 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse1 .cse2 (or .cse4 .cse3)) (and .cse4 .cse0 .cse1 .cse2))) [2022-11-19 07:38:55,998 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-19 07:38:55,998 INFO L895 garLoopResultBuilder]: At program point L835(lines 788 836) the Hoare annotation is: false [2022-11-19 07:38:55,998 INFO L899 garLoopResultBuilder]: For program point L790(lines 789 834) no Hoare annotation was computed. [2022-11-19 07:38:55,998 INFO L895 garLoopResultBuilder]: At program point L811(line 811) the Hoare annotation is: (let ((.cse2 (< ~waterLevel~0 3)) (.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2) (and .cse0 .cse1 .cse2 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) .cse3) (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse3))) [2022-11-19 07:38:55,999 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-19 07:38:55,999 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (<= |old(~waterLevel~0)| 1))) (.cse1 (not (= 1 ~systemActive~0))) (.cse4 (not (= ~pumpRunning~0 0))) (.cse2 (not (= ~pumpRunning~0 1))) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 .cse2 (not (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) .cse3) (or .cse0 .cse4 .cse1 .cse3) (or .cse1 (and .cse4 .cse2) (not (= |old(~waterLevel~0)| 2)) .cse3))) [2022-11-19 07:38:55,999 INFO L895 garLoopResultBuilder]: At program point L632(line 632) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (<= ~waterLevel~0 1)) (.cse2 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not .cse1) .cse2) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and .cse1 (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 0) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse2))) [2022-11-19 07:38:55,999 INFO L899 garLoopResultBuilder]: For program point L626(lines 626 634) no Hoare annotation was computed. [2022-11-19 07:38:55,999 INFO L895 garLoopResultBuilder]: At program point L622(lines 622 639) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-19 07:38:56,000 INFO L895 garLoopResultBuilder]: At program point L682(line 682) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= 2 ~waterLevel~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse1))) [2022-11-19 07:38:56,000 INFO L895 garLoopResultBuilder]: At program point L682-1(line 682) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (and (= 2 ~waterLevel~0) (= |processEnvironment__wrappee__methaneQuery_~tmp~4#1| 1) (= ~pumpRunning~0 ~switchedOnBeforeTS~0)) (not (< ~waterLevel~0 3)) .cse1))) [2022-11-19 07:38:56,000 INFO L895 garLoopResultBuilder]: At program point L637(line 637) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-19 07:38:56,000 INFO L899 garLoopResultBuilder]: For program point L637-1(lines 618 642) no Hoare annotation was computed. [2022-11-19 07:38:56,000 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__methaneQueryENTRY(lines 618 642) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (= ~switchedOnBeforeTS~0 |old(~pumpRunning~0)|)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (= ~pumpRunning~0 ~switchedOnBeforeTS~0) (not (< ~waterLevel~0 3)) .cse1) (or .cse0 (not (= |old(~pumpRunning~0)| 1)) (not (<= ~waterLevel~0 1)) .cse1 (= ~pumpRunning~0 1)))) [2022-11-19 07:38:56,001 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__methaneQueryEXIT(lines 618 642) no Hoare annotation was computed. [2022-11-19 07:38:56,001 INFO L899 garLoopResultBuilder]: For program point isPumpRunningEXIT(lines 713 721) no Hoare annotation was computed. [2022-11-19 07:38:56,001 INFO L902 garLoopResultBuilder]: At program point isPumpRunningENTRY(lines 713 721) the Hoare annotation is: true [2022-11-19 07:38:56,001 INFO L902 garLoopResultBuilder]: At program point isMethaneAlarmENTRY(lines 702 712) the Hoare annotation is: true [2022-11-19 07:38:56,001 INFO L899 garLoopResultBuilder]: For program point isMethaneAlarmEXIT(lines 702 712) no Hoare annotation was computed. [2022-11-19 07:38:56,004 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-19 07:38:56,006 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-19 07:38:56,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 07:38:56 BoogieIcfgContainer [2022-11-19 07:38:56,048 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-19 07:38:56,049 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-19 07:38:56,049 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-19 07:38:56,049 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-19 07:38:56,050 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 07:38:15" (3/4) ... [2022-11-19 07:38:56,052 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-19 07:38:56,058 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-19 07:38:56,058 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-19 07:38:56,058 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-19 07:38:56,058 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-19 07:38:56,059 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-19 07:38:56,059 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2022-11-19 07:38:56,059 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2022-11-19 07:38:56,059 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2022-11-19 07:38:56,065 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 50 nodes and edges [2022-11-19 07:38:56,066 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2022-11-19 07:38:56,067 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2022-11-19 07:38:56,067 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:38:56,068 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-19 07:38:56,098 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) && !(\old(pumpRunning) == 1)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) [2022-11-19 07:38:56,099 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 07:38:56,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && (((((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || ((((pumpRunning == 0 && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && \old(waterLevel) == tmp)) || !(\old(waterLevel) < 3)) [2022-11-19 07:38:56,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) [2022-11-19 07:38:56,101 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) [2022-11-19 07:38:56,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) [2022-11-19 07:38:56,102 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) [2022-11-19 07:38:56,103 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 == waterLevel && tmp == 1) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) [2022-11-19 07:38:56,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/witness.graphml [2022-11-19 07:38:56,149 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-19 07:38:56,150 INFO L158 Benchmark]: Toolchain (without parser) took 41561.80ms. Allocated memory was 104.9MB in the beginning and 383.8MB in the end (delta: 278.9MB). Free memory was 73.9MB in the beginning and 193.3MB in the end (delta: -119.4MB). Peak memory consumption was 159.8MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,150 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-19 07:38:56,151 INFO L158 Benchmark]: CACSL2BoogieTranslator took 529.78ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 72.5MB in the end (delta: 1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.42ms. Allocated memory is still 104.9MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,152 INFO L158 Benchmark]: Boogie Preprocessor took 29.45ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 68.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,152 INFO L158 Benchmark]: RCFGBuilder took 748.91ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 80.2MB in the end (delta: -11.4MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,153 INFO L158 Benchmark]: TraceAbstraction took 40099.75ms. Allocated memory was 104.9MB in the beginning and 383.8MB in the end (delta: 278.9MB). Free memory was 79.6MB in the beginning and 199.6MB in the end (delta: -120.0MB). Peak memory consumption was 235.3MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,153 INFO L158 Benchmark]: Witness Printer took 100.73ms. Allocated memory is still 383.8MB. Free memory was 199.6MB in the beginning and 193.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-19 07:38:56,155 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 83.9MB. Free memory was 43.9MB in the beginning and 43.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 529.78ms. Allocated memory is still 104.9MB. Free memory was 73.6MB in the beginning and 72.5MB in the end (delta: 1.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.42ms. Allocated memory is still 104.9MB. Free memory was 72.5MB in the beginning and 70.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.45ms. Allocated memory is still 104.9MB. Free memory was 70.4MB in the beginning and 68.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 748.91ms. Allocated memory is still 104.9MB. Free memory was 68.8MB in the beginning and 80.2MB in the end (delta: -11.4MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * TraceAbstraction took 40099.75ms. Allocated memory was 104.9MB in the beginning and 383.8MB in the end (delta: 278.9MB). Free memory was 79.6MB in the beginning and 199.6MB in the end (delta: -120.0MB). Peak memory consumption was 235.3MB. Max. memory is 16.1GB. * Witness Printer took 100.73ms. Allocated memory is still 383.8MB. Free memory was 199.6MB in the beginning and 193.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 155]: 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 9 procedures, 64 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 40.0s, OverallIterations: 9, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2099 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2078 mSDsluCounter, 2076 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1498 mSDsCounter, 1285 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2731 IncrementalHoareTripleChecker+Invalid, 4016 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1285 mSolverCounterUnsat, 578 mSDtfsCounter, 2731 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 604 GetRequests, 375 SyntacticMatches, 14 SemanticMatches, 215 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6009 ImplicationChecksByTransitivity, 17.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=348occurred in iteration=7, InterpolantAutomatonStates: 122, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 106 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 37 LocationsWithAnnotation, 1332 PreInvPairs, 1552 NumberOfFragments, 1999 HoareAnnotationTreeSize, 1332 FomulaSimplifications, 5325 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 37 FomulaSimplificationsInter, 18318 FormulaSimplificationTreeSizeReductionInter, 4.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 538 NumberOfCodeBlocks, 538 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 668 ConstructedInterpolants, 0 QuantifiedInterpolants, 2002 SizeOfPredicates, 19 NumberOfNonLiveVariables, 665 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 13 InterpolantComputations, 7 PerfectInterpolantSequences, 166/228 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: 597]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 622]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) || pumpRunning == 1) - InvariantResult [Line: -1]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 652]: Loop Invariant Derived loop invariant: (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3))) && (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || ((waterLevel == 1 && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(\old(waterLevel) == 2)) - InvariantResult [Line: 789]: Loop Invariant Derived loop invariant: (((((waterLevel <= 1 && 1 == systemActive) && splverifierCounter == 0) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1) || (((2 == waterLevel && 1 == systemActive) && splverifierCounter == 0) && (pumpRunning == 0 || pumpRunning == 1))) || (((pumpRunning == 0 && waterLevel <= 1) && 1 == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 644]: Loop Invariant Derived loop invariant: ((((((!(1 == systemActive) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((\old(waterLevel) == waterLevel || waterLevel == 1) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && (\old(waterLevel) == waterLevel || waterLevel == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((pumpRunning == 0 && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS)) || ((((2 == waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(waterLevel) < 3))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((waterLevel + 1 <= \old(waterLevel) || (!(0 < waterLevel) && waterLevel <= \old(waterLevel))) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || ((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 546]: Loop Invariant Derived loop invariant: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || ((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1))) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) && (((((((((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && waterLevel <= 1) && 1 == systemActive) && (\old(waterLevel) == waterLevel || waterLevel == 1)) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) || (((waterLevel <= 1 && (\old(waterLevel) == waterLevel || waterLevel == 1)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && (((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || (((!(switchedOnBeforeTS == 0) && pumpRunning == 0) && 1 == systemActive) && waterLevel <= \old(waterLevel))) || !(\old(pumpRunning) == 1)) || (((!(0 < waterLevel) && waterLevel <= \old(waterLevel)) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((((tmp == 2 && 2 == waterLevel) && 1 == systemActive) && \old(waterLevel) == waterLevel) && (pumpRunning == \old(pumpRunning) || pumpRunning == 1)) && (pumpRunning == 0 || pumpRunning == 1))) || ((((pumpRunning == 0 && 1 == systemActive) && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && \old(waterLevel) == tmp)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 788]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 155]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) == 2)) && (((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(waterLevel) <= 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1))) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(\old(waterLevel) < 3)) - InvariantResult [Line: 702]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 541]: Loop Invariant Derived loop invariant: (((((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || pumpRunning == switchedOnBeforeTS) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || (((pumpRunning == aux-isPumpRunning()-aux && \old(waterLevel) == waterLevel) && pumpRunning == switchedOnBeforeTS) && pumpRunning == 1)) || !(1 == systemActive)) || !(\old(pumpRunning) == 1)) || !(\old(waterLevel) < 3))) && ((((!(\old(pumpRunning) == 0) && !(\old(pumpRunning) == 1)) || !(1 == systemActive)) || ((pumpRunning == \old(pumpRunning) && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) || !(\old(waterLevel) == 2))) && ((((!(\old(switchedOnBeforeTS) == \old(pumpRunning)) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || !(\old(waterLevel) == 2)) || pumpRunning == switchedOnBeforeTS)) && (((!(\old(waterLevel) <= 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((pumpRunning == 0 && pumpRunning == aux-isPumpRunning()-aux) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 883]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 682]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || !(\old(pumpRunning) == 1)) || !(waterLevel <= 1)) || !(switchedOnBeforeTS == \old(pumpRunning))) && ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || ((2 == waterLevel && tmp == 1) && pumpRunning == switchedOnBeforeTS)) || !(waterLevel < 3)) || !(switchedOnBeforeTS == \old(pumpRunning))) - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 965]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && waterLevel == 1) && pumpRunning == switchedOnBeforeTS - InvariantResult [Line: 779]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 893]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-19 07:38:56,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18bb964f-e946-4575-92ae-7cc4c0b3857b/bin/utaipan-I9t0OCRTmS/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