./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.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_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/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_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/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_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/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 e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 --- 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 21:03:03,414 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:03:03,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:03:03,462 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:03:03,464 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:03:03,468 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:03:03,470 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:03:03,474 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:03:03,477 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:03:03,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:03:03,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:03:03,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:03:03,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:03:03,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:03:03,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:03:03,494 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:03:03,496 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:03:03,497 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:03:03,499 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:03:03,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:03:03,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:03:03,508 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:03:03,509 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:03:03,512 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:03:03,518 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:03:03,522 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:03:03,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:03:03,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:03:03,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:03:03,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:03:03,526 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:03:03,527 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:03:03,528 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:03:03,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:03:03,531 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:03:03,531 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:03:03,532 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:03:03,532 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:03:03,533 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:03:03,533 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:03:03,534 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:03:03,535 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 21:03:03,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:03:03,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:03:03,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:03:03,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:03:03,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:03:03,575 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:03:03,576 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:03:03,576 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:03:03,576 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:03:03,576 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:03:03,577 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:03:03,578 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:03:03,578 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:03:03,578 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:03:03,578 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:03:03,579 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:03:03,579 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:03:03,579 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:03:03,579 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:03:03,579 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:03:03,580 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:03:03,580 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:03:03,580 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:03:03,580 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:03:03,581 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:03:03,581 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:03:03,581 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:03:03,581 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:03:03,581 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:03:03,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:03:03,582 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:03:03,582 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:03:03,582 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:03:03,583 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_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e2e0ba6a085074e8295b6882a51ff57a646359fc725b3e12397ae540b49c1d93 [2022-11-18 21:03:03,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:03:03,886 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:03:03,890 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:03:03,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:03:03,905 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:03:03,906 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2022-11-18 21:03:03,971 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/data/fca465eec/19b63d4c56f7445c98ef4dfb6583ff02/FLAGa4b1edea1 [2022-11-18 21:03:04,499 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:03:04,502 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c [2022-11-18 21:03:04,514 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/data/fca465eec/19b63d4c56f7445c98ef4dfb6583ff02/FLAGa4b1edea1 [2022-11-18 21:03:04,813 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/data/fca465eec/19b63d4c56f7445c98ef4dfb6583ff02 [2022-11-18 21:03:04,816 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:03:04,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:03:04,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:03:04,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:03:04,825 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:03:04,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:03:04" (1/1) ... [2022-11-18 21:03:04,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@555f9c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:04, skipping insertion in model container [2022-11-18 21:03:04,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:03:04" (1/1) ... [2022-11-18 21:03:04,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:03:04,875 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:03:05,211 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_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13988,14001] [2022-11-18 21:03:05,230 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:03:05,239 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:03:05,293 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_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/sv-benchmarks/c/product-lines/minepump_spec3_product33.cil.c[13988,14001] [2022-11-18 21:03:05,304 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:03:05,320 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:03:05,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05 WrapperNode [2022-11-18 21:03:05,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:03:05,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:03:05,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:03:05,323 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:03:05,337 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,392 INFO L138 Inliner]: procedures = 52, calls = 94, calls flagged for inlining = 20, calls inlined = 17, statements flattened = 173 [2022-11-18 21:03:05,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:03:05,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:03:05,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:03:05,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:03:05,406 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,413 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,417 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,435 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:03:05,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:03:05,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:03:05,450 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:03:05,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (1/1) ... [2022-11-18 21:03:05,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:03:05,471 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:03:05,485 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:03:05,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:03:05,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:03:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-18 21:03:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-18 21:03:05,536 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-18 21:03:05,536 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-18 21:03:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-18 21:03:05,537 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-18 21:03:05,537 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2022-11-18 21:03:05,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2022-11-18 21:03:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-18 21:03:05,539 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-18 21:03:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:03:05,539 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-18 21:03:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-18 21:03:05,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:03:05,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:03:05,636 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:03:05,638 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:03:05,912 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:03:05,920 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:03:05,921 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 21:03:05,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:03:05 BoogieIcfgContainer [2022-11-18 21:03:05,924 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:03:05,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:03:05,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:03:05,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:03:05,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:03:04" (1/3) ... [2022-11-18 21:03:05,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cab7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:03:05, skipping insertion in model container [2022-11-18 21:03:05,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:03:05" (2/3) ... [2022-11-18 21:03:05,933 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74cab7f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:03:05, skipping insertion in model container [2022-11-18 21:03:05,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:03:05" (3/3) ... [2022-11-18 21:03:05,935 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2022-11-18 21:03:05,955 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:03:05,955 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:03:06,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:03:06,054 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;@bb472c4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:03:06,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:03:06,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-18 21:03:06,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-18 21:03:06,076 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:06,077 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 21:03:06,077 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:06,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:06,084 INFO L85 PathProgramCache]: Analyzing trace with hash 2051524167, now seen corresponding path program 1 times [2022-11-18 21:03:06,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:06,096 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347703806] [2022-11-18 21:03:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:06,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:06,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:06,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-11-18 21:03:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:06,394 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 21:03:06,396 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:06,397 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347703806] [2022-11-18 21:03:06,398 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347703806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:06,398 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:06,399 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:03:06,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046374871] [2022-11-18 21:03:06,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:06,407 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:03:06,408 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:06,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:03:06,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:03:06,474 INFO L87 Difference]: Start difference. First operand has 76 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 65 states have internal predecessors, (83), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) 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 21:03:06,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:06,519 INFO L93 Difference]: Finished difference Result 144 states and 197 transitions. [2022-11-18 21:03:06,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:03:06,521 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 21:03:06,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:06,531 INFO L225 Difference]: With dead ends: 144 [2022-11-18 21:03:06,531 INFO L226 Difference]: Without dead ends: 67 [2022-11-18 21:03:06,535 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 21:03:06,543 INFO L413 NwaCegarLoop]: 95 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, 95 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 21:03:06,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:06,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-18 21:03:06,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 67. [2022-11-18 21:03:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 57 states have internal predecessors, (69), 9 states have call successors, (9), 6 states have call predecessors, (9), 5 states have return successors, (8), 7 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 21:03:06,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 86 transitions. [2022-11-18 21:03:06,618 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 86 transitions. Word has length 25 [2022-11-18 21:03:06,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:06,618 INFO L495 AbstractCegarLoop]: Abstraction has 67 states and 86 transitions. [2022-11-18 21:03:06,619 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 21:03:06,619 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 86 transitions. [2022-11-18 21:03:06,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-11-18 21:03:06,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:06,624 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 21:03:06,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:03:06,625 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:06,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:06,627 INFO L85 PathProgramCache]: Analyzing trace with hash -755812007, now seen corresponding path program 1 times [2022-11-18 21:03:06,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:06,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266973829] [2022-11-18 21:03:06,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:06,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:06,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:06,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2022-11-18 21:03:06,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:06,793 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 21:03:06,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:06,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266973829] [2022-11-18 21:03:06,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266973829] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:06,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:06,795 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:03:06,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201105322] [2022-11-18 21:03:06,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:06,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:03:06,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:06,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:03:06,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:06,798 INFO L87 Difference]: Start difference. First operand 67 states and 86 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 21:03:06,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:06,813 INFO L93 Difference]: Finished difference Result 100 states and 128 transitions. [2022-11-18 21:03:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:03:06,814 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 21:03:06,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:06,815 INFO L225 Difference]: With dead ends: 100 [2022-11-18 21:03:06,815 INFO L226 Difference]: Without dead ends: 58 [2022-11-18 21:03:06,816 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 21:03:06,817 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 12 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 130 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 21:03:06,818 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 130 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-18 21:03:06,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-18 21:03:06,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 51 states have internal predecessors, (62), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 21:03:06,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 74 transitions. [2022-11-18 21:03:06,826 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 74 transitions. Word has length 26 [2022-11-18 21:03:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:06,826 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 74 transitions. [2022-11-18 21:03:06,826 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 21:03:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 74 transitions. [2022-11-18 21:03:06,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-11-18 21:03:06,827 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:06,828 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] [2022-11-18 21:03:06,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:03:06,828 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:06,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:06,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1418329719, now seen corresponding path program 1 times [2022-11-18 21:03:06,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:06,829 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1264894705] [2022-11-18 21:03:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:06,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 21:03:07,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,067 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 21:03:07,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:07,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1264894705] [2022-11-18 21:03:07,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1264894705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:07,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:07,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:03:07,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298827658] [2022-11-18 21:03:07,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:07,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:03:07,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:07,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:03:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:03:07,071 INFO L87 Difference]: Start difference. First operand 58 states and 74 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 21:03:07,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:07,197 INFO L93 Difference]: Finished difference Result 109 states and 142 transitions. [2022-11-18 21:03:07,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:03:07,202 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2022-11-18 21:03:07,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:07,204 INFO L225 Difference]: With dead ends: 109 [2022-11-18 21:03:07,204 INFO L226 Difference]: Without dead ends: 58 [2022-11-18 21:03:07,204 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:03:07,206 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 100 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 151 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:07,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 151 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:07,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-11-18 21:03:07,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-11-18 21:03:07,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 46 states have (on average 1.326086956521739) internal successors, (61), 51 states have internal predecessors, (61), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-18 21:03:07,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 73 transitions. [2022-11-18 21:03:07,229 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 73 transitions. Word has length 30 [2022-11-18 21:03:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:07,230 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 73 transitions. [2022-11-18 21:03:07,230 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 21:03:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 73 transitions. [2022-11-18 21:03:07,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-18 21:03:07,234 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:07,235 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] [2022-11-18 21:03:07,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:03:07,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:07,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:07,236 INFO L85 PathProgramCache]: Analyzing trace with hash -1398795374, now seen corresponding path program 1 times [2022-11-18 21:03:07,236 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:07,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029223541] [2022-11-18 21:03:07,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:07,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:07,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2022-11-18 21:03:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-18 21:03:07,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,333 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 21:03:07,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:07,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029223541] [2022-11-18 21:03:07,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029223541] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:07,334 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:07,334 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:03:07,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032339129] [2022-11-18 21:03:07,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:07,335 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:03:07,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:07,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:03:07,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:07,337 INFO L87 Difference]: Start difference. First operand 58 states and 73 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:03:07,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:07,368 INFO L93 Difference]: Finished difference Result 149 states and 192 transitions. [2022-11-18 21:03:07,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:03:07,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2022-11-18 21:03:07,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:07,379 INFO L225 Difference]: With dead ends: 149 [2022-11-18 21:03:07,379 INFO L226 Difference]: Without dead ends: 98 [2022-11-18 21:03:07,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 21:03:07,381 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 47 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:07,382 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 144 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:07,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-18 21:03:07,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2022-11-18 21:03:07,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 75 states have (on average 1.32) internal successors, (99), 81 states have internal predecessors, (99), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (12), 10 states have call predecessors, (12), 10 states have call successors, (12) [2022-11-18 21:03:07,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 121 transitions. [2022-11-18 21:03:07,416 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 121 transitions. Word has length 35 [2022-11-18 21:03:07,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:07,417 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 121 transitions. [2022-11-18 21:03:07,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:03:07,418 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 121 transitions. [2022-11-18 21:03:07,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 21:03:07,419 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:07,419 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, 1] [2022-11-18 21:03:07,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:03:07,420 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:07,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:07,421 INFO L85 PathProgramCache]: Analyzing trace with hash -2080139765, now seen corresponding path program 1 times [2022-11-18 21:03:07,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:07,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561103004] [2022-11-18 21:03:07,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:07,422 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:07,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 21:03:07,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,534 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 21:03:07,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:07,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561103004] [2022-11-18 21:03:07,535 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561103004] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:07,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:07,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:03:07,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253614697] [2022-11-18 21:03:07,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:07,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:03:07,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:07,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:03:07,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:03:07,538 INFO L87 Difference]: Start difference. First operand 96 states and 121 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 21:03:07,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:07,585 INFO L93 Difference]: Finished difference Result 264 states and 348 transitions. [2022-11-18 21:03:07,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:03:07,586 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 39 [2022-11-18 21:03:07,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:07,588 INFO L225 Difference]: With dead ends: 264 [2022-11-18 21:03:07,588 INFO L226 Difference]: Without dead ends: 175 [2022-11-18 21:03:07,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 21:03:07,591 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 43 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:07,591 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 135 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:07,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-18 21:03:07,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 173. [2022-11-18 21:03:07,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 136 states have (on average 1.3161764705882353) internal successors, (179), 144 states have internal predecessors, (179), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2022-11-18 21:03:07,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 223 transitions. [2022-11-18 21:03:07,621 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 223 transitions. Word has length 39 [2022-11-18 21:03:07,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:07,622 INFO L495 AbstractCegarLoop]: Abstraction has 173 states and 223 transitions. [2022-11-18 21:03:07,622 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 21:03:07,622 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 223 transitions. [2022-11-18 21:03:07,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 21:03:07,624 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:07,624 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, 1] [2022-11-18 21:03:07,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:03:07,625 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:07,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:07,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1262491315, now seen corresponding path program 1 times [2022-11-18 21:03:07,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:07,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747158092] [2022-11-18 21:03:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:07,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:07,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,704 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 21:03:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,707 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 21:03:07,708 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:07,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747158092] [2022-11-18 21:03:07,708 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747158092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:07,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:07,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:03:07,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271322804] [2022-11-18 21:03:07,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:07,710 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:03:07,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:07,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:03:07,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:07,711 INFO L87 Difference]: Start difference. First operand 173 states and 223 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 21:03:07,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:07,780 INFO L93 Difference]: Finished difference Result 375 states and 493 transitions. [2022-11-18 21:03:07,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:03:07,781 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 39 [2022-11-18 21:03:07,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:07,783 INFO L225 Difference]: With dead ends: 375 [2022-11-18 21:03:07,784 INFO L226 Difference]: Without dead ends: 209 [2022-11-18 21:03:07,785 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 21:03:07,786 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 62 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:07,787 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 331 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:07,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2022-11-18 21:03:07,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 179. [2022-11-18 21:03:07,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 142 states have (on average 1.3028169014084507) internal successors, (185), 150 states have internal predecessors, (185), 19 states have call successors, (19), 19 states have call predecessors, (19), 17 states have return successors, (25), 17 states have call predecessors, (25), 19 states have call successors, (25) [2022-11-18 21:03:07,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 229 transitions. [2022-11-18 21:03:07,820 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 229 transitions. Word has length 39 [2022-11-18 21:03:07,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:07,821 INFO L495 AbstractCegarLoop]: Abstraction has 179 states and 229 transitions. [2022-11-18 21:03:07,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 21:03:07,822 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 229 transitions. [2022-11-18 21:03:07,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-18 21:03:07,823 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:07,824 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, 1] [2022-11-18 21:03:07,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:03:07,824 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:07,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:07,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1038331275, now seen corresponding path program 1 times [2022-11-18 21:03:07,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:07,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978903917] [2022-11-18 21:03:07,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:07,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:07,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2022-11-18 21:03:07,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:07,900 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 21:03:07,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:07,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978903917] [2022-11-18 21:03:07,901 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978903917] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:07,902 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:07,902 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:03:07,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390307076] [2022-11-18 21:03:07,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:07,903 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:03:07,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:07,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:03:07,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:03:07,904 INFO L87 Difference]: Start difference. First operand 179 states and 229 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 21:03:07,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:07,968 INFO L93 Difference]: Finished difference Result 334 states and 431 transitions. [2022-11-18 21:03:07,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:03:07,969 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 39 [2022-11-18 21:03:07,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:07,971 INFO L225 Difference]: With dead ends: 334 [2022-11-18 21:03:07,971 INFO L226 Difference]: Without dead ends: 162 [2022-11-18 21:03:07,972 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:07,973 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 37 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:07,974 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 211 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:07,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2022-11-18 21:03:07,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 144. [2022-11-18 21:03:07,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 114 states have (on average 1.280701754385965) internal successors, (146), 121 states have internal predecessors, (146), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-18 21:03:07,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 178 transitions. [2022-11-18 21:03:07,995 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 178 transitions. Word has length 39 [2022-11-18 21:03:07,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:07,995 INFO L495 AbstractCegarLoop]: Abstraction has 144 states and 178 transitions. [2022-11-18 21:03:07,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (2), 1 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 21:03:07,996 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 178 transitions. [2022-11-18 21:03:07,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-18 21:03:07,997 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:07,997 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, 1, 1, 1] [2022-11-18 21:03:07,998 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:03:07,998 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:07,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:07,999 INFO L85 PathProgramCache]: Analyzing trace with hash -1305949366, now seen corresponding path program 1 times [2022-11-18 21:03:07,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:07,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [694064331] [2022-11-18 21:03:07,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:08,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:08,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2022-11-18 21:03:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2022-11-18 21:03:08,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,086 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 21:03:08,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:08,086 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [694064331] [2022-11-18 21:03:08,086 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [694064331] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:08,087 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:08,087 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:03:08,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471228138] [2022-11-18 21:03:08,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:08,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:03:08,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:08,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:03:08,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:08,089 INFO L87 Difference]: Start difference. First operand 144 states and 178 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:03:08,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:08,149 INFO L93 Difference]: Finished difference Result 282 states and 350 transitions. [2022-11-18 21:03:08,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:03:08,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2022-11-18 21:03:08,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:08,151 INFO L225 Difference]: With dead ends: 282 [2022-11-18 21:03:08,152 INFO L226 Difference]: Without dead ends: 145 [2022-11-18 21:03:08,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 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 21:03:08,153 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 30 mSDsluCounter, 207 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 283 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:08,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 283 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:03:08,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2022-11-18 21:03:08,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 142. [2022-11-18 21:03:08,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 112 states have (on average 1.2678571428571428) internal successors, (142), 119 states have internal predecessors, (142), 15 states have call successors, (15), 15 states have call predecessors, (15), 14 states have return successors, (17), 14 states have call predecessors, (17), 15 states have call successors, (17) [2022-11-18 21:03:08,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 174 transitions. [2022-11-18 21:03:08,172 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 174 transitions. Word has length 41 [2022-11-18 21:03:08,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:08,173 INFO L495 AbstractCegarLoop]: Abstraction has 142 states and 174 transitions. [2022-11-18 21:03:08,173 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-18 21:03:08,173 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 174 transitions. [2022-11-18 21:03:08,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-18 21:03:08,174 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:08,175 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, 1, 1, 1, 1, 1] [2022-11-18 21:03:08,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 21:03:08,175 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:08,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1289793507, now seen corresponding path program 1 times [2022-11-18 21:03:08,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:08,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564315691] [2022-11-18 21:03:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:08,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:08,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:08,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-11-18 21:03:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,326 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 21:03:08,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:08,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564315691] [2022-11-18 21:03:08,328 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564315691] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:08,328 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:08,328 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:03:08,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086552739] [2022-11-18 21:03:08,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:08,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:03:08,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:08,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:03:08,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:03:08,332 INFO L87 Difference]: Start difference. First operand 142 states and 174 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2022-11-18 21:03:08,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:08,654 INFO L93 Difference]: Finished difference Result 265 states and 330 transitions. [2022-11-18 21:03:08,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-11-18 21:03:08,654 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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 43 [2022-11-18 21:03:08,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:08,656 INFO L225 Difference]: With dead ends: 265 [2022-11-18 21:03:08,656 INFO L226 Difference]: Without dead ends: 105 [2022-11-18 21:03:08,657 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2022-11-18 21:03:08,660 INFO L413 NwaCegarLoop]: 92 mSDtfsCounter, 137 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:08,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 466 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-18 21:03:08,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2022-11-18 21:03:08,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 99. [2022-11-18 21:03:08,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.2179487179487178) internal successors, (95), 83 states have internal predecessors, (95), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-11-18 21:03:08,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 116 transitions. [2022-11-18 21:03:08,693 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 116 transitions. Word has length 43 [2022-11-18 21:03:08,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:08,694 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 116 transitions. [2022-11-18 21:03:08,694 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 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) [2022-11-18 21:03:08,694 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 116 transitions. [2022-11-18 21:03:08,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 21:03:08,699 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:08,699 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:08,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 21:03:08,699 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:08,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:08,700 INFO L85 PathProgramCache]: Analyzing trace with hash -168912990, now seen corresponding path program 1 times [2022-11-18 21:03:08,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:08,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753149927] [2022-11-18 21:03:08,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:08,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:08,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:03:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 21:03:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:08,817 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 21:03:08,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:08,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753149927] [2022-11-18 21:03:08,818 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753149927] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:08,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:08,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 21:03:08,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397348041] [2022-11-18 21:03:08,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:08,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:03:08,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:08,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:03:08,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:03:08,822 INFO L87 Difference]: Start difference. First operand 99 states and 116 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 21:03:08,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:08,913 INFO L93 Difference]: Finished difference Result 168 states and 200 transitions. [2022-11-18 21:03:08,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:03:08,914 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-18 21:03:08,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:08,916 INFO L225 Difference]: With dead ends: 168 [2022-11-18 21:03:08,916 INFO L226 Difference]: Without dead ends: 117 [2022-11-18 21:03:08,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 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 21:03:08,917 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 75 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:08,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 190 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:08,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2022-11-18 21:03:08,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 99. [2022-11-18 21:03:08,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 78 states have (on average 1.205128205128205) internal successors, (94), 83 states have internal predecessors, (94), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-11-18 21:03:08,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 115 transitions. [2022-11-18 21:03:08,938 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 115 transitions. Word has length 45 [2022-11-18 21:03:08,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:08,938 INFO L495 AbstractCegarLoop]: Abstraction has 99 states and 115 transitions. [2022-11-18 21:03:08,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 21:03:08,940 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 115 transitions. [2022-11-18 21:03:08,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 21:03:08,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:08,947 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:08,947 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 21:03:08,947 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:08,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:08,948 INFO L85 PathProgramCache]: Analyzing trace with hash -986561440, now seen corresponding path program 1 times [2022-11-18 21:03:08,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:08,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218908274] [2022-11-18 21:03:08,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:08,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:08,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:09,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:03:09,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 21:03:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,069 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 21:03:09,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:09,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218908274] [2022-11-18 21:03:09,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218908274] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:09,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:09,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-18 21:03:09,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661190145] [2022-11-18 21:03:09,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:09,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:03:09,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:09,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:03:09,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:03:09,073 INFO L87 Difference]: Start difference. First operand 99 states and 115 transitions. Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 21:03:09,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:09,208 INFO L93 Difference]: Finished difference Result 153 states and 179 transitions. [2022-11-18 21:03:09,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:03:09,208 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-18 21:03:09,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:09,211 INFO L225 Difference]: With dead ends: 153 [2022-11-18 21:03:09,211 INFO L226 Difference]: Without dead ends: 97 [2022-11-18 21:03:09,212 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2022-11-18 21:03:09,212 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 67 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:09,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 274 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:09,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-11-18 21:03:09,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2022-11-18 21:03:09,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 81 states have internal predecessors, (91), 10 states have call successors, (10), 10 states have call predecessors, (10), 10 states have return successors, (11), 9 states have call predecessors, (11), 10 states have call successors, (11) [2022-11-18 21:03:09,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 112 transitions. [2022-11-18 21:03:09,234 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 112 transitions. Word has length 45 [2022-11-18 21:03:09,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:09,234 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 112 transitions. [2022-11-18 21:03:09,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.75) internal successors, (38), 7 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 21:03:09,235 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 112 transitions. [2022-11-18 21:03:09,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-18 21:03:09,235 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:03:09,236 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, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:09,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 21:03:09,236 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:03:09,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:03:09,236 INFO L85 PathProgramCache]: Analyzing trace with hash -387767708, now seen corresponding path program 1 times [2022-11-18 21:03:09,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:03:09,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734754107] [2022-11-18 21:03:09,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:03:09,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:03:09,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-18 21:03:09,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-11-18 21:03:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-18 21:03:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:03:09,380 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 21:03:09,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:03:09,381 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734754107] [2022-11-18 21:03:09,381 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734754107] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:03:09,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:03:09,381 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 21:03:09,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752163004] [2022-11-18 21:03:09,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:03:09,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 21:03:09,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:03:09,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 21:03:09,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:03:09,383 INFO L87 Difference]: Start difference. First operand 97 states and 112 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 21:03:09,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:03:09,523 INFO L93 Difference]: Finished difference Result 162 states and 193 transitions. [2022-11-18 21:03:09,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:03:09,524 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2022-11-18 21:03:09,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:03:09,524 INFO L225 Difference]: With dead ends: 162 [2022-11-18 21:03:09,524 INFO L226 Difference]: Without dead ends: 0 [2022-11-18 21:03:09,525 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-18 21:03:09,526 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 79 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 170 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:03:09,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 170 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:03:09,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-18 21:03:09,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-18 21:03:09,528 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) [2022-11-18 21:03:09,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-18 21:03:09,528 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 45 [2022-11-18 21:03:09,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:03:09,528 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-18 21:03:09,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-11-18 21:03:09,529 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-18 21:03:09,529 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-18 21:03:09,532 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:03:09,533 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-18 21:03:09,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-18 21:03:11,384 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 724 730) no Hoare annotation was computed. [2022-11-18 21:03:11,384 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 724 730) the Hoare annotation is: true [2022-11-18 21:03:11,384 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 83 94) the Hoare annotation is: true [2022-11-18 21:03:11,384 INFO L899 garLoopResultBuilder]: For program point L87-1(lines 83 94) no Hoare annotation was computed. [2022-11-18 21:03:11,384 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 83 94) no Hoare annotation was computed. [2022-11-18 21:03:11,385 INFO L899 garLoopResultBuilder]: For program point L704-1(lines 703 722) no Hoare annotation was computed. [2022-11-18 21:03:11,385 INFO L895 garLoopResultBuilder]: At program point L762(lines 757 764) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (and (not (= ~pumpRunning~0 0)) (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (= |old(~pumpRunning~0)| 0)))) [2022-11-18 21:03:11,385 INFO L895 garLoopResultBuilder]: At program point L746(line 746) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) (= |timeShift_isHighWaterLevel_~tmp~6#1| 1)) (not (= |old(~waterLevel~0)| 1)) .cse0) (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (and (= ~pumpRunning~0 0) (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) (= |old(~waterLevel~0)| ~waterLevel~0)) .cse0))) [2022-11-18 21:03:11,385 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 700 723) no Hoare annotation was computed. [2022-11-18 21:03:11,386 INFO L899 garLoopResultBuilder]: For program point L858(lines 858 878) no Hoare annotation was computed. [2022-11-18 21:03:11,386 INFO L895 garLoopResultBuilder]: At program point L751(line 751) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-18 21:03:11,386 INFO L899 garLoopResultBuilder]: For program point L623(line 623) no Hoare annotation was computed. [2022-11-18 21:03:11,386 INFO L895 garLoopResultBuilder]: At program point L751-1(lines 732 756) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not .cse2))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse2 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1))) (or .cse3 .cse1 .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse5) .cse1 (and .cse3 .cse5)))))) [2022-11-18 21:03:11,386 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 146) no Hoare annotation was computed. [2022-11-18 21:03:11,387 INFO L899 garLoopResultBuilder]: For program point L838(lines 838 842) no Hoare annotation was computed. [2022-11-18 21:03:11,387 INFO L899 garLoopResultBuilder]: For program point L838-2(lines 838 842) no Hoare annotation was computed. [2022-11-18 21:03:11,387 INFO L895 garLoopResultBuilder]: At program point L132(lines 127 135) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse4)) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (not .cse0))) (and (or (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse0 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1)) .cse1 (not (= |old(~waterLevel~0)| 1)) .cse2) (or .cse3 .cse2 .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse1 .cse2 (and (not (= 2 |timeShift_getWaterLevel_#res#1|)) (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse5) (and .cse3 .cse5)))))) [2022-11-18 21:03:11,387 INFO L895 garLoopResultBuilder]: At program point L789(lines 784 792) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0)))) (and (or (and (not (= ~pumpRunning~0 0)) (not (= |timeShift_isPumpRunning_#res#1| 0))) .cse0) (or .cse1 .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0))) [2022-11-18 21:03:11,388 INFO L895 garLoopResultBuilder]: At program point L145(lines 136 149) the Hoare annotation is: (let ((.cse0 (= |timeShift_isHighWaterSensorDry_#res#1| 1)) (.cse3 (not (= 1 ~systemActive~0)))) (and (let ((.cse1 (= ~pumpRunning~0 0)) (.cse2 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse0 .cse1 (not (= 2 ~waterLevel~0)) .cse2) .cse3 (and .cse1 (= |timeShift_isHighWaterSensorDry_#res#1| 0) .cse2))) (or .cse3 (= |old(~pumpRunning~0)| 0)) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse3))) [2022-11-18 21:03:11,388 INFO L895 garLoopResultBuilder]: At program point L624(lines 619 626) the Hoare annotation is: (not (= 1 ~systemActive~0)) [2022-11-18 21:03:11,388 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 711 717) no Hoare annotation was computed. [2022-11-18 21:03:11,388 INFO L899 garLoopResultBuilder]: For program point L740(lines 740 748) no Hoare annotation was computed. [2022-11-18 21:03:11,388 INFO L899 garLoopResultBuilder]: For program point L868(lines 868 874) no Hoare annotation was computed. [2022-11-18 21:03:11,388 INFO L899 garLoopResultBuilder]: For program point L736(lines 736 753) no Hoare annotation was computed. [2022-11-18 21:03:11,388 INFO L899 garLoopResultBuilder]: For program point L864(lines 864 877) no Hoare annotation was computed. [2022-11-18 21:03:11,389 INFO L899 garLoopResultBuilder]: For program point L63(lines 63 67) no Hoare annotation was computed. [2022-11-18 21:03:11,389 INFO L895 garLoopResultBuilder]: At program point L864-1(lines 849 881) the Hoare annotation is: (let ((.cse1 (= ~pumpRunning~0 0)) (.cse3 (= 1 ~systemActive~0)) (.cse6 (= |old(~pumpRunning~0)| 0))) (let ((.cse2 (= |timeShift_processEnvironment_~tmp~5#1| 0)) (.cse0 (not .cse6)) (.cse4 (not .cse3)) (.cse5 (not .cse1))) (and (or .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse1 .cse2 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1) .cse3) (not (= |old(~waterLevel~0)| 1)) .cse4) (or .cse5 .cse4 .cse6) (let ((.cse7 (= |old(~waterLevel~0)| ~waterLevel~0))) (or (and .cse1 (not (= 2 ~waterLevel~0)) .cse2 .cse3 .cse7) .cse0 .cse4 (and .cse5 .cse7)))))) [2022-11-18 21:03:11,389 INFO L895 garLoopResultBuilder]: At program point L63-2(lines 59 70) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= ~pumpRunning~0 0)) .cse0) (or (not (= |old(~pumpRunning~0)| 0)) .cse0))) [2022-11-18 21:03:11,389 INFO L895 garLoopResultBuilder]: At program point L856(line 856) the Hoare annotation is: (let ((.cse2 (= ~pumpRunning~0 0)) (.cse4 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (not .cse4)) (.cse1 (not (= 1 ~systemActive~0))) (.cse3 (not .cse2))) (and (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse2 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1))) (or .cse3 .cse1 .cse4) (let ((.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and (not (= 2 ~waterLevel~0)) (= |timeShift_processEnvironment_~tmp~5#1| 0) .cse5) .cse1 (and .cse3 .cse5)))))) [2022-11-18 21:03:11,389 INFO L899 garLoopResultBuilder]: For program point L856-1(line 856) no Hoare annotation was computed. [2022-11-18 21:03:11,390 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 700 723) the Hoare annotation is: (let ((.cse1 (= |old(~pumpRunning~0)| 0)) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 .cse1 (and (not .cse2) .cse3)) (or (not .cse1) (and .cse2 .cse3) .cse0))) [2022-11-18 21:03:11,390 INFO L895 garLoopResultBuilder]: At program point L844(lines 829 847) the Hoare annotation is: (let ((.cse4 (= 1 ~systemActive~0))) (let ((.cse0 (not .cse4)) (.cse2 (= |timeShift_isHighWaterLevel_~tmp___0~1#1| 0)) (.cse1 (= |timeShift_isHighWaterLevel_#res#1| 0))) (and (or .cse0 (= |old(~pumpRunning~0)| 0)) (or (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= |timeShift_isHighWaterSensorDry_#res#1| 1) .cse1 (= |timeShift_isHighWaterLevel_~tmp~6#1| 1) .cse2)) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0))) (or .cse0 (and .cse3 (not (= 2 ~waterLevel~0)) .cse4 .cse5) (and .cse3 (not .cse2) .cse4 .cse5 (not .cse1))))))) [2022-11-18 21:03:11,390 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 700 723) no Hoare annotation was computed. [2022-11-18 21:03:11,390 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 623) no Hoare annotation was computed. [2022-11-18 21:03:11,399 INFO L902 garLoopResultBuilder]: At program point L163-2(lines 163 177) the Hoare annotation is: true [2022-11-18 21:03:11,399 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 153 182) no Hoare annotation was computed. [2022-11-18 21:03:11,400 INFO L902 garLoopResultBuilder]: At program point L159(line 159) the Hoare annotation is: true [2022-11-18 21:03:11,400 INFO L899 garLoopResultBuilder]: For program point L159-1(line 159) no Hoare annotation was computed. [2022-11-18 21:03:11,400 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 153 182) the Hoare annotation is: true [2022-11-18 21:03:11,400 INFO L902 garLoopResultBuilder]: At program point L178(lines 153 182) the Hoare annotation is: true [2022-11-18 21:03:11,400 INFO L899 garLoopResultBuilder]: For program point L174(line 174) no Hoare annotation was computed. [2022-11-18 21:03:11,401 INFO L899 garLoopResultBuilder]: For program point L167(lines 167 171) no Hoare annotation was computed. [2022-11-18 21:03:11,401 INFO L902 garLoopResultBuilder]: At program point L167-1(lines 167 171) the Hoare annotation is: true [2022-11-18 21:03:11,401 INFO L899 garLoopResultBuilder]: For program point L164(line 164) no Hoare annotation was computed. [2022-11-18 21:03:11,401 INFO L902 garLoopResultBuilder]: At program point isMethaneLevelCriticalENTRY(lines 95 103) the Hoare annotation is: true [2022-11-18 21:03:11,405 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalFINAL(lines 95 103) no Hoare annotation was computed. [2022-11-18 21:03:11,406 INFO L899 garLoopResultBuilder]: For program point isMethaneLevelCriticalEXIT(lines 95 103) no Hoare annotation was computed. [2022-11-18 21:03:11,406 INFO L895 garLoopResultBuilder]: At program point L684(lines 637 685) the Hoare annotation is: false [2022-11-18 21:03:11,406 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-18 21:03:11,406 INFO L899 garLoopResultBuilder]: For program point L639(lines 638 683) no Hoare annotation was computed. [2022-11-18 21:03:11,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-18 21:03:11,406 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-18 21:03:11,407 INFO L899 garLoopResultBuilder]: For program point L668(lines 668 679) no Hoare annotation was computed. [2022-11-18 21:03:11,407 INFO L895 garLoopResultBuilder]: At program point L660(line 660) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 21:03:11,407 INFO L899 garLoopResultBuilder]: For program point L239(lines 239 246) no Hoare annotation was computed. [2022-11-18 21:03:11,408 INFO L899 garLoopResultBuilder]: For program point L239-2(lines 239 246) no Hoare annotation was computed. [2022-11-18 21:03:11,408 INFO L895 garLoopResultBuilder]: At program point L681(lines 638 683) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= 2 ~waterLevel~0)) .cse0 .cse1 .cse2 .cse3) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3))) [2022-11-18 21:03:11,408 INFO L899 garLoopResultBuilder]: For program point L648(lines 648 654) no Hoare annotation was computed. [2022-11-18 21:03:11,408 INFO L899 garLoopResultBuilder]: For program point L648-1(lines 648 654) no Hoare annotation was computed. [2022-11-18 21:03:11,408 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-18 21:03:11,408 INFO L899 garLoopResultBuilder]: For program point L640(lines 640 644) no Hoare annotation was computed. [2022-11-18 21:03:11,408 INFO L902 garLoopResultBuilder]: At program point L223(lines 216 225) the Hoare annotation is: true [2022-11-18 21:03:11,408 INFO L902 garLoopResultBuilder]: At program point L248(lines 229 251) the Hoare annotation is: true [2022-11-18 21:03:11,408 INFO L895 garLoopResultBuilder]: At program point L913(lines 908 916) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 21:03:11,409 INFO L895 garLoopResultBuilder]: At program point L905(lines 901 907) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 21:03:11,409 INFO L899 garLoopResultBuilder]: For program point L674(lines 674 678) no Hoare annotation was computed. [2022-11-18 21:03:11,409 INFO L895 garLoopResultBuilder]: At program point L674-2(lines 668 679) the Hoare annotation is: (and (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) [2022-11-18 21:03:11,409 INFO L895 garLoopResultBuilder]: At program point L212(lines 208 214) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= |ULTIMATE.start_main_~tmp~0#1| 1) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 21:03:11,409 INFO L899 garLoopResultBuilder]: For program point L658(lines 658 664) no Hoare annotation was computed. [2022-11-18 21:03:11,409 INFO L899 garLoopResultBuilder]: For program point L658-1(lines 658 664) no Hoare annotation was computed. [2022-11-18 21:03:11,409 INFO L902 garLoopResultBuilder]: At program point L687(lines 628 691) the Hoare annotation is: true [2022-11-18 21:03:11,409 INFO L895 garLoopResultBuilder]: At program point L650(line 650) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_main_~tmp~0#1| 1)) (.cse1 (= 1 ~systemActive~0)) (.cse2 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse3 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (= 2 ~waterLevel~0)) .cse0 .cse1 .cse2 .cse3) (and (not (= ~pumpRunning~0 0)) .cse0 .cse1 .cse2 .cse3))) [2022-11-18 21:03:11,409 INFO L895 garLoopResultBuilder]: At program point L898(lines 894 900) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-18 21:03:11,410 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 71 82) no Hoare annotation was computed. [2022-11-18 21:03:11,410 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 71 82) no Hoare annotation was computed. [2022-11-18 21:03:11,410 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 71 82) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (or (= ~pumpRunning~0 0) .cse0 .cse1))) [2022-11-18 21:03:11,413 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:03:11,415 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:03:11,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:03:11 BoogieIcfgContainer [2022-11-18 21:03:11,462 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:03:11,463 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:03:11,463 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:03:11,463 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:03:11,464 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:03:05" (3/4) ... [2022-11-18 21:03:11,467 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-18 21:03:11,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-18 21:03:11,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-18 21:03:11,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-18 21:03:11,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-18 21:03:11,473 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2022-11-18 21:03:11,474 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-18 21:03:11,479 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-18 21:03:11,480 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-18 21:03:11,480 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-18 21:03:11,481 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:03:11,481 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-18 21:03:11,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 21:03:11,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-18 21:03:11,506 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(2 == waterLevel) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) || ((((!(pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) [2022-11-18 21:03:11,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(pumpRunning == 0) || !(1 == systemActive)) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) [2022-11-18 21:03:11,507 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && tmp == 1)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || ((!(2 == waterLevel) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-18 21:03:11,508 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || ((((\result == 1 && pumpRunning == 0) && tmp == 0) && tmp == 1) && 1 == systemActive)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((((((pumpRunning == 0 && !(2 == waterLevel)) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-18 21:03:11,508 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((\result == 1 && pumpRunning == 0) && tmp == 1) && \result == 1) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((!(2 == \result) && !(2 == waterLevel)) && tmp == 0) && \old(waterLevel) == waterLevel)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) [2022-11-18 21:03:11,508 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((\result == 1 && pumpRunning == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || \old(pumpRunning) == 0)) && ((\result == 1 || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-18 21:03:11,509 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || \old(pumpRunning) == 0) && ((!(\old(waterLevel) == 1) || !(1 == systemActive)) || (((\result == 1 && \result == 0) && tmp == 1) && tmp___0 == 0))) && ((!(1 == systemActive) || (((pumpRunning == 0 && !(2 == waterLevel)) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((pumpRunning == 0 && !(tmp___0 == 0)) && 1 == systemActive) && \old(waterLevel) == waterLevel) && !(\result == 0))) [2022-11-18 21:03:11,509 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(pumpRunning == 0) && !(\result == 0)) || !(1 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-18 21:03:11,509 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(waterLevel) == 1) || !(1 == systemActive)) && (!(1 == systemActive) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (!(1 == systemActive) || \old(pumpRunning) == 0) [2022-11-18 21:03:11,527 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/witness.graphml [2022-11-18 21:03:11,528 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:03:11,528 INFO L158 Benchmark]: Toolchain (without parser) took 6711.09ms. Allocated memory was 115.3MB in the beginning and 209.7MB in the end (delta: 94.4MB). Free memory was 78.6MB in the beginning and 140.2MB in the end (delta: -61.6MB). Peak memory consumption was 32.8MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,529 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:03:11,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.59ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 83.3MB in the end (delta: -4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,529 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.26ms. Allocated memory is still 115.3MB. Free memory was 83.3MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,529 INFO L158 Benchmark]: Boogie Preprocessor took 42.43ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,530 INFO L158 Benchmark]: RCFGBuilder took 483.85ms. Allocated memory is still 115.3MB. Free memory was 79.6MB in the beginning and 64.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,530 INFO L158 Benchmark]: TraceAbstraction took 5536.15ms. Allocated memory was 115.3MB in the beginning and 209.7MB in the end (delta: 94.4MB). Free memory was 63.3MB in the beginning and 145.4MB in the end (delta: -82.1MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,530 INFO L158 Benchmark]: Witness Printer took 64.67ms. Allocated memory is still 209.7MB. Free memory was 145.4MB in the beginning and 140.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-18 21:03:11,532 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 115.3MB. Free memory is still 96.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.59ms. Allocated memory is still 115.3MB. Free memory was 78.4MB in the beginning and 83.3MB in the end (delta: -4.9MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.26ms. Allocated memory is still 115.3MB. Free memory was 83.3MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 42.43ms. Allocated memory is still 115.3MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 483.85ms. Allocated memory is still 115.3MB. Free memory was 79.6MB in the beginning and 64.3MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 5536.15ms. Allocated memory was 115.3MB in the beginning and 209.7MB in the end (delta: 94.4MB). Free memory was 63.3MB in the beginning and 145.4MB in the end (delta: -82.1MB). Peak memory consumption was 69.0MB. Max. memory is 16.1GB. * Witness Printer took 64.67ms. Allocated memory is still 209.7MB. Free memory was 145.4MB in the beginning and 140.2MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 623]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.4s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 702 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 689 mSDsluCounter, 2580 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1684 mSDsCounter, 90 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 553 IncrementalHoareTripleChecker+Invalid, 643 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 90 mSolverCounterUnsat, 896 mSDtfsCounter, 553 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 128 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=179occurred in iteration=6, InterpolantAutomatonStates: 64, 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, 12 MinimizatonAttempts, 79 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 34 LocationsWithAnnotation, 502 PreInvPairs, 600 NumberOfFragments, 763 HoareAnnotationTreeSize, 502 FomulaSimplifications, 80 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 34 FomulaSimplificationsInter, 4275 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 452 NumberOfCodeBlocks, 452 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 440 ConstructedInterpolants, 0 QuantifiedInterpolants, 736 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 908]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: ((((((\result == 1 && pumpRunning == 0) && !(2 == waterLevel)) && \old(waterLevel) == waterLevel) || !(1 == systemActive)) || ((pumpRunning == 0 && \result == 0) && \old(waterLevel) == waterLevel)) && (!(1 == systemActive) || \old(pumpRunning) == 0)) && ((\result == 1 || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 163]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 901]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 628]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 637]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 829]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || \old(pumpRunning) == 0) && ((!(\old(waterLevel) == 1) || !(1 == systemActive)) || (((\result == 1 && \result == 0) && tmp == 1) && tmp___0 == 0))) && ((!(1 == systemActive) || (((pumpRunning == 0 && !(2 == waterLevel)) && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((pumpRunning == 0 && !(tmp___0 == 0)) && 1 == systemActive) && \old(waterLevel) == waterLevel) && !(\result == 0))) - InvariantResult [Line: 208]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && tmp == 1) && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 784]: Loop Invariant Derived loop invariant: (((!(pumpRunning == 0) && !(\result == 0)) || !(1 == systemActive)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) == waterLevel)) && ((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 757]: Loop Invariant Derived loop invariant: ((!(\old(waterLevel) == 1) || !(1 == systemActive)) && (!(1 == systemActive) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel))) && (!(1 == systemActive) || \old(pumpRunning) == 0) - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((\result == 1 && pumpRunning == 0) && tmp == 1) && \result == 1) || !(\old(pumpRunning) == 0)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || (((!(2 == \result) && !(2 == waterLevel)) && tmp == 0) && \old(waterLevel) == waterLevel)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 732]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((\result == 1 && pumpRunning == 0) && tmp == 1)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((!(\old(pumpRunning) == 0) || ((!(2 == waterLevel) && tmp == 0) && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 638]: Loop Invariant Derived loop invariant: ((((!(2 == waterLevel) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) || ((((!(pumpRunning == 0) && tmp == 1) && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) - InvariantResult [Line: 153]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: (!(pumpRunning == 0) || !(1 == systemActive)) && (!(\old(pumpRunning) == 0) || !(1 == systemActive)) - InvariantResult [Line: 229]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 849]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || ((((\result == 1 && pumpRunning == 0) && tmp == 0) && tmp == 1) && 1 == systemActive)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) && ((!(pumpRunning == 0) || !(1 == systemActive)) || \old(pumpRunning) == 0)) && (((((((pumpRunning == 0 && !(2 == waterLevel)) && tmp == 0) && 1 == systemActive) && \old(waterLevel) == waterLevel) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (!(pumpRunning == 0) && \old(waterLevel) == waterLevel)) - InvariantResult [Line: 619]: Loop Invariant Derived loop invariant: !(1 == systemActive) - InvariantResult [Line: 216]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-18 21:03:11,563 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_89401eb2-f0de-4bac-bc11-6dc9b95fabf2/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE