./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b --- 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 [2022-11-18 19:50:05,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:50:05,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:50:05,237 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:50:05,237 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:50:05,242 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:50:05,244 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:50:05,248 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:50:05,251 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:50:05,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:50:05,258 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:50:05,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:50:05,261 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:50:05,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:50:05,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:50:05,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:50:05,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:50:05,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:50:05,272 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:50:05,282 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:50:05,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:50:05,285 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:50:05,288 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:50:05,289 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:50:05,298 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:50:05,299 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:50:05,300 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:50:05,302 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:50:05,303 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:50:05,304 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:50:05,305 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:50:05,306 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:50:05,309 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:50:05,310 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:50:05,313 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:50:05,313 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:50:05,314 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:50:05,314 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:50:05,315 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:50:05,316 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:50:05,317 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:50:05,318 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:50:05,362 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:50:05,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:50:05,363 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:50:05,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:50:05,365 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:50:05,365 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:50:05,366 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:50:05,366 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:50:05,366 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:50:05,366 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:50:05,368 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:50:05,368 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:50:05,368 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:50:05,368 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:50:05,369 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:50:05,369 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:50:05,369 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:50:05,369 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:50:05,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:50:05,370 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:50:05,370 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:50:05,370 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:50:05,371 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:50:05,371 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:50:05,371 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:05,371 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:50:05,372 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:50:05,372 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:50:05,372 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:50:05,372 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:50:05,373 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:50:05,373 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:50:05,373 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:50:05,373 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_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2efd89abea8f395c763606eb884193ead53dd4c60c121d08f464917c0ce7119b [2022-11-18 19:50:05,711 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:50:05,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:50:05,745 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:50:05,747 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:50:05,747 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:50:05,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2022-11-18 19:50:05,811 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/data/4fd054958/e6bf1f55b62b4ff090644269d74f3178/FLAGd08f459da [2022-11-18 19:50:06,406 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:50:06,424 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c [2022-11-18 19:50:06,433 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/data/4fd054958/e6bf1f55b62b4ff090644269d74f3178/FLAGd08f459da [2022-11-18 19:50:06,667 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/data/4fd054958/e6bf1f55b62b4ff090644269d74f3178 [2022-11-18 19:50:06,670 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:50:06,673 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:50:06,676 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:06,676 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:50:06,680 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:50:06,681 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:06" (1/1) ... [2022-11-18 19:50:06,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22cd0174 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:06, skipping insertion in model container [2022-11-18 19:50:06,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:50:06" (1/1) ... [2022-11-18 19:50:06,690 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:50:06,753 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:50:07,104 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_6600737c-62f8-49e4-84e0-5a56b7a60aac/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2022-11-18 19:50:07,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:07,148 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:50:07,238 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_6600737c-62f8-49e4-84e0-5a56b7a60aac/sv-benchmarks/c/product-lines/minepump_spec3_product60.cil.c[16122,16135] [2022-11-18 19:50:07,248 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:50:07,267 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:50:07,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07 WrapperNode [2022-11-18 19:50:07,268 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:50:07,269 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:50:07,269 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:50:07,269 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:50:07,277 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,290 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,336 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 230 [2022-11-18 19:50:07,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:50:07,337 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:50:07,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:50:07,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:50:07,347 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,347 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,359 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,361 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,365 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:50:07,366 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:50:07,367 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:50:07,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:50:07,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (1/1) ... [2022-11-18 19:50:07,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:50:07,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:50:07,400 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:50:07,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:50:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:50:07,471 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 19:50:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 19:50:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 19:50:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 19:50:07,472 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 19:50:07,472 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 19:50:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 19:50:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 19:50:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 19:50:07,473 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-18 19:50:07,473 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 19:50:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 19:50:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-11-18 19:50:07,474 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-11-18 19:50:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:50:07,474 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 19:50:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 19:50:07,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:50:07,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:50:07,560 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:50:07,562 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:50:07,952 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:50:07,969 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:50:07,969 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 19:50:07,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:07 BoogieIcfgContainer [2022-11-18 19:50:07,971 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:50:07,973 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:50:07,975 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:50:07,979 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:50:07,979 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:50:06" (1/3) ... [2022-11-18 19:50:07,980 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caffc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:07, skipping insertion in model container [2022-11-18 19:50:07,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:50:07" (2/3) ... [2022-11-18 19:50:07,981 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2caffc0c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:50:07, skipping insertion in model container [2022-11-18 19:50:07,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:07" (3/3) ... [2022-11-18 19:50:07,983 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product60.cil.c [2022-11-18 19:50:08,002 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:50:08,002 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:50:08,075 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:50:08,084 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=PETRI_NET, 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;@5fe9aad4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:50:08,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:50:08,089 INFO L276 IsEmpty]: Start isEmpty. Operand has 101 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 86 states have internal predecessors, (106), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2022-11-18 19:50:08,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 19:50:08,102 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:08,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:08,105 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:08,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:08,113 INFO L85 PathProgramCache]: Analyzing trace with hash -2094937371, now seen corresponding path program 1 times [2022-11-18 19:50:08,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:08,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859833810] [2022-11-18 19:50:08,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:08,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:08,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:08,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 19:50:08,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:08,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:08,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:08,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859833810] [2022-11-18 19:50:08,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859833810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:08,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:08,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 19:50:08,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58358854] [2022-11-18 19:50:08,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:08,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 19:50:08,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:08,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 19:50:08,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:50:08,360 INFO L87 Difference]: Start difference. First operand has 101 states, 77 states have (on average 1.3766233766233766) internal successors, (106), 86 states have internal predecessors, (106), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:08,399 INFO L93 Difference]: Finished difference Result 194 states and 263 transitions. [2022-11-18 19:50:08,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 19:50:08,401 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2022-11-18 19:50:08,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:08,411 INFO L225 Difference]: With dead ends: 194 [2022-11-18 19:50:08,411 INFO L226 Difference]: Without dead ends: 92 [2022-11-18 19:50:08,415 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 19:50:08,418 INFO L413 NwaCegarLoop]: 128 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:08,420 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:50:08,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-11-18 19:50:08,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2022-11-18 19:50:08,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 70 states have (on average 1.3142857142857143) internal successors, (92), 78 states have internal predecessors, (92), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2022-11-18 19:50:08,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 119 transitions. [2022-11-18 19:50:08,465 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 119 transitions. Word has length 25 [2022-11-18 19:50:08,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:08,465 INFO L495 AbstractCegarLoop]: Abstraction has 92 states and 119 transitions. [2022-11-18 19:50:08,466 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,466 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 119 transitions. [2022-11-18 19:50:08,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 19:50:08,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:08,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:08,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:50:08,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:08,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:08,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1959573933, now seen corresponding path program 1 times [2022-11-18 19:50:08,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:08,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422671649] [2022-11-18 19:50:08,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:08,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:08,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:08,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 19:50:08,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:08,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:08,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:08,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422671649] [2022-11-18 19:50:08,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422671649] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:08,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:08,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:50:08,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824801218] [2022-11-18 19:50:08,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:08,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:08,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:08,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:08,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:08,596 INFO L87 Difference]: Start difference. First operand 92 states and 119 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:08,617 INFO L93 Difference]: Finished difference Result 145 states and 187 transitions. [2022-11-18 19:50:08,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:08,618 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2022-11-18 19:50:08,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:08,619 INFO L225 Difference]: With dead ends: 145 [2022-11-18 19:50:08,619 INFO L226 Difference]: Without dead ends: 83 [2022-11-18 19:50:08,620 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:08,622 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 17 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:08,622 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 190 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:50:08,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2022-11-18 19:50:08,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2022-11-18 19:50:08,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 64 states have (on average 1.328125) internal successors, (85), 72 states have internal predecessors, (85), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2022-11-18 19:50:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 107 transitions. [2022-11-18 19:50:08,634 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 107 transitions. Word has length 26 [2022-11-18 19:50:08,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:08,634 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 107 transitions. [2022-11-18 19:50:08,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,635 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 107 transitions. [2022-11-18 19:50:08,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-11-18 19:50:08,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:08,636 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:08,637 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:50:08,637 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:08,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:08,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2030749758, now seen corresponding path program 1 times [2022-11-18 19:50:08,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:08,638 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459896570] [2022-11-18 19:50:08,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:08,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:08,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-18 19:50:08,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:08,837 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:08,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:08,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459896570] [2022-11-18 19:50:08,838 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459896570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:08,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:08,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:08,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745228496] [2022-11-18 19:50:08,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:08,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:50:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:08,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:50:08,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:50:08,840 INFO L87 Difference]: Start difference. First operand 83 states and 107 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:08,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:08,973 INFO L93 Difference]: Finished difference Result 203 states and 265 transitions. [2022-11-18 19:50:08,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:50:08,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 31 [2022-11-18 19:50:08,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:08,976 INFO L225 Difference]: With dead ends: 203 [2022-11-18 19:50:08,976 INFO L226 Difference]: Without dead ends: 127 [2022-11-18 19:50:08,988 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:50:08,989 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 170 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 369 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:08,990 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 369 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:50:08,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-11-18 19:50:09,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 124. [2022-11-18 19:50:09,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.3473684210526315) internal successors, (128), 106 states have internal predecessors, (128), 16 states have call successors, (16), 12 states have call predecessors, (16), 12 states have return successors, (17), 12 states have call predecessors, (17), 16 states have call successors, (17) [2022-11-18 19:50:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 161 transitions. [2022-11-18 19:50:09,020 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 161 transitions. Word has length 31 [2022-11-18 19:50:09,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:09,027 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 161 transitions. [2022-11-18 19:50:09,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:09,028 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 161 transitions. [2022-11-18 19:50:09,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-11-18 19:50:09,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:09,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:09,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:50:09,031 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:09,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:09,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1089524515, now seen corresponding path program 1 times [2022-11-18 19:50:09,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:09,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415891718] [2022-11-18 19:50:09,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:09,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:09,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:09,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-11-18 19:50:09,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:09,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:09,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:09,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415891718] [2022-11-18 19:50:09,274 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415891718] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:09,274 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:09,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:50:09,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015763817] [2022-11-18 19:50:09,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:09,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:50:09,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:09,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:50:09,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:50:09,276 INFO L87 Difference]: Start difference. First operand 124 states and 161 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:09,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:09,369 INFO L93 Difference]: Finished difference Result 352 states and 475 transitions. [2022-11-18 19:50:09,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:50:09,370 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 34 [2022-11-18 19:50:09,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:09,373 INFO L225 Difference]: With dead ends: 352 [2022-11-18 19:50:09,373 INFO L226 Difference]: Without dead ends: 235 [2022-11-18 19:50:09,374 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:50:09,375 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 76 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:09,376 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 431 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:50:09,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2022-11-18 19:50:09,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 229. [2022-11-18 19:50:09,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 174 states have (on average 1.3275862068965518) internal successors, (231), 193 states have internal predecessors, (231), 32 states have call successors, (32), 24 states have call predecessors, (32), 22 states have return successors, (37), 22 states have call predecessors, (37), 32 states have call successors, (37) [2022-11-18 19:50:09,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 300 transitions. [2022-11-18 19:50:09,444 INFO L78 Accepts]: Start accepts. Automaton has 229 states and 300 transitions. Word has length 34 [2022-11-18 19:50:09,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:09,445 INFO L495 AbstractCegarLoop]: Abstraction has 229 states and 300 transitions. [2022-11-18 19:50:09,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:09,446 INFO L276 IsEmpty]: Start isEmpty. Operand 229 states and 300 transitions. [2022-11-18 19:50:09,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-11-18 19:50:09,453 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:09,453 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:09,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:50:09,454 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:09,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:09,455 INFO L85 PathProgramCache]: Analyzing trace with hash 2017651048, now seen corresponding path program 1 times [2022-11-18 19:50:09,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:09,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [834169834] [2022-11-18 19:50:09,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:09,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:09,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:09,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 19:50:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:50:09,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:50:09,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:50:09,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [834169834] [2022-11-18 19:50:09,572 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [834169834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:50:09,573 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:50:09,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 19:50:09,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057217013] [2022-11-18 19:50:09,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:50:09,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 19:50:09,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:50:09,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 19:50:09,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:09,575 INFO L87 Difference]: Start difference. First operand 229 states and 300 transitions. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:09,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:50:09,651 INFO L93 Difference]: Finished difference Result 514 states and 689 transitions. [2022-11-18 19:50:09,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 19:50:09,652 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 36 [2022-11-18 19:50:09,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:50:09,654 INFO L225 Difference]: With dead ends: 514 [2022-11-18 19:50:09,654 INFO L226 Difference]: Without dead ends: 292 [2022-11-18 19:50:09,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 19:50:09,657 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 66 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:50:09,658 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 174 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:50:09,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-11-18 19:50:09,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 288. [2022-11-18 19:50:09,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 222 states have (on average 1.2837837837837838) internal successors, (285), 238 states have internal predecessors, (285), 35 states have call successors, (35), 32 states have call predecessors, (35), 30 states have return successors, (48), 32 states have call predecessors, (48), 35 states have call successors, (48) [2022-11-18 19:50:09,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 368 transitions. [2022-11-18 19:50:09,718 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 368 transitions. Word has length 36 [2022-11-18 19:50:09,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:50:09,719 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 368 transitions. [2022-11-18 19:50:09,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 19:50:09,719 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 368 transitions. [2022-11-18 19:50:09,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-11-18 19:50:09,720 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:50:09,720 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:50:09,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:50:09,722 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:50:09,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:50:09,731 INFO L85 PathProgramCache]: Analyzing trace with hash -422775543, now seen corresponding path program 1 times [2022-11-18 19:50:09,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:50:09,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268761131] [2022-11-18 19:50:09,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:50:09,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:50:09,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:50:09,758 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:50:09,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:50:09,820 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:50:09,821 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:50:09,822 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:50:09,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:50:09,827 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-11-18 19:50:09,832 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:50:09,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:50:09 BoogieIcfgContainer [2022-11-18 19:50:09,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:50:09,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:50:09,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:50:09,901 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:50:09,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:50:07" (3/4) ... [2022-11-18 19:50:09,903 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-18 19:50:09,955 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 19:50:09,955 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:50:09,956 INFO L158 Benchmark]: Toolchain (without parser) took 3283.02ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 58.8MB in the beginning and 57.3MB in the end (delta: 1.5MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB. [2022-11-18 19:50:09,956 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:50:09,957 INFO L158 Benchmark]: CACSL2BoogieTranslator took 592.22ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 58.7MB in the beginning and 73.4MB in the end (delta: -14.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:50:09,957 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.38ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 70.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:50:09,957 INFO L158 Benchmark]: Boogie Preprocessor took 28.77ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:50:09,958 INFO L158 Benchmark]: RCFGBuilder took 604.89ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 51.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-18 19:50:09,958 INFO L158 Benchmark]: TraceAbstraction took 1926.85ms. Allocated memory is still 104.9MB. Free memory was 51.3MB in the beginning and 61.5MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:50:09,958 INFO L158 Benchmark]: Witness Printer took 54.72ms. Allocated memory is still 104.9MB. Free memory was 61.5MB in the beginning and 57.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:50:09,960 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 79.7MB. Free memory is still 57.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 592.22ms. Allocated memory was 79.7MB in the beginning and 104.9MB in the end (delta: 25.2MB). Free memory was 58.7MB in the beginning and 73.4MB in the end (delta: -14.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.38ms. Allocated memory is still 104.9MB. Free memory was 73.4MB in the beginning and 70.7MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.77ms. Allocated memory is still 104.9MB. Free memory was 70.7MB in the beginning and 69.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 604.89ms. Allocated memory is still 104.9MB. Free memory was 69.2MB in the beginning and 51.8MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1926.85ms. Allocated memory is still 104.9MB. Free memory was 51.3MB in the beginning and 61.5MB in the end (delta: -10.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 54.72ms. Allocated memory is still 104.9MB. Free memory was 61.5MB in the beginning and 57.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 779]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L578] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L823] int methaneLevelCritical = 0; [L134] int pumpRunning = 0; [L822] int waterLevel = 1; [L135] int systemActive = 1; [L925] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L998] int retValue_acc ; [L999] int tmp ; [L1003] FCALL select_helpers() [L1004] FCALL select_features() [L1005] CALL, EXPR valid_product() [L813] int retValue_acc ; [L816] retValue_acc = 1 [L817] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L1005] RET, EXPR valid_product() [L1005] tmp = valid_product() [L1007] COND TRUE \read(tmp) [L1009] FCALL setup() [L1010] CALL runTest() [L992] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L66] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L68] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L78] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L840] COND TRUE waterLevel < 2 [L841] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L78] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND FALSE !(\read(tmp___2)) [L102] tmp___1 = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp___1) [L106] CALL stopSystem() [L353] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L360] systemActive = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L106] RET stopSystem() [L113] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L142] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L149] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L157] CALL __utac_acc__Specification3_spec__1() [L376] int tmp ; [L377] int tmp___0 ; [L378] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L861] int retValue_acc ; [L864] retValue_acc = methaneLevelCritical [L865] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L382] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L382] tmp = isMethaneLevelCritical() [L384] COND FALSE !(\read(tmp)) [L388] CALL, EXPR getWaterLevel() [L893] int retValue_acc ; [L896] retValue_acc = waterLevel [L897] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=0, waterLevel=2] [L388] RET, EXPR getWaterLevel() [L388] tmp___0 = getWaterLevel() [L390] COND TRUE tmp___0 == 2 [L392] CALL, EXPR isPumpRunning() [L267] int retValue_acc ; [L270] retValue_acc = pumpRunning [L271] return (retValue_acc); VAL [\old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=0, waterLevel=2] [L392] RET, EXPR isPumpRunning() [L392] tmp___1 = isPumpRunning() [L394] COND FALSE !(\read(tmp___1)) [L398] CALL __automaton_fail() [L779] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 101 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.8s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 333 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 329 mSDsluCounter, 1292 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 715 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 577 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=288occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-18 19:50:09,983 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6600737c-62f8-49e4-84e0-5a56b7a60aac/bin/uautomizer-TMbwUNV5ro/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE