./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ --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 bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 --- 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-dbf71c6-m [2022-10-17 10:53:24,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:53:24,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:53:24,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:53:24,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:53:24,448 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:53:24,450 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:53:24,453 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:53:24,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:53:24,463 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:53:24,464 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:53:24,466 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:53:24,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:53:24,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:53:24,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:53:24,479 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:53:24,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:53:24,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:53:24,493 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:53:24,495 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:53:24,502 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:53:24,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:53:24,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:53:24,509 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:53:24,515 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:53:24,521 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:53:24,522 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:53:24,523 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:53:24,525 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:53:24,526 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:53:24,527 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:53:24,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:53:24,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:53:24,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:53:24,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:53:24,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:53:24,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:53:24,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:53:24,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:53:24,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:53:24,537 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:53:24,538 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:53:24,582 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:53:24,582 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:53:24,583 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:53:24,583 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:53:24,584 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:53:24,585 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:53:24,585 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:53:24,586 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:53:24,586 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:53:24,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:53:24,587 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:53:24,588 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:53:24,588 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:53:24,588 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:53:24,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:53:24,589 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:53:24,589 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:53:24,589 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:53:24,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:53:24,590 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:53:24,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:53:24,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:53:24,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:53:24,591 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:53:24,591 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:24,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:53:24,591 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:53:24,592 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:53:24,592 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:53:24,592 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:53:24,592 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:53:24,593 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:53:24,593 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:53:24,593 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_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bd2232848f38516f4fb4022953e113fa5008bf5804c5e85e87585cfa28da0689 [2022-10-17 10:53:24,901 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:53:24,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:53:24,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:53:24,948 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:53:24,949 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:53:24,950 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2022-10-17 10:53:25,033 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/data/a8a957a23/c5e161475d344a90b8388503bf1d052c/FLAG24bae1a8d [2022-10-17 10:53:25,594 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:53:25,595 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c [2022-10-17 10:53:25,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/data/a8a957a23/c5e161475d344a90b8388503bf1d052c/FLAG24bae1a8d [2022-10-17 10:53:25,849 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/data/a8a957a23/c5e161475d344a90b8388503bf1d052c [2022-10-17 10:53:25,852 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:53:25,853 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:53:25,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:25,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:53:25,860 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:53:25,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:25" (1/1) ... [2022-10-17 10:53:25,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67c00ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:25, skipping insertion in model container [2022-10-17 10:53:25,863 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:53:25" (1/1) ... [2022-10-17 10:53:25,871 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:53:25,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:53:26,361 WARN L230 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_3d946297-1089-40ed-9ec9-a1d560ed0e0a/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2022-10-17 10:53:26,378 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:26,394 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:53:26,483 WARN L230 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_3d946297-1089-40ed-9ec9-a1d560ed0e0a/sv-benchmarks/c/product-lines/minepump_spec4_product54.cil.c[18533,18546] [2022-10-17 10:53:26,485 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:53:26,506 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:53:26,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26 WrapperNode [2022-10-17 10:53:26,507 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:53:26,508 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:26,509 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:53:26,509 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:53:26,518 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,536 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,572 INFO L138 Inliner]: procedures = 57, calls = 159, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 284 [2022-10-17 10:53:26,572 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:53:26,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:53:26,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:53:26,574 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:53:26,588 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,589 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,605 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,606 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,630 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,632 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,643 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:53:26,646 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:53:26,646 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:53:26,647 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:53:26,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (1/1) ... [2022-10-17 10:53:26,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:53:26,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:26,691 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:53:26,717 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-10-17 10:53:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-10-17 10:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-10-17 10:53:26,744 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-10-17 10:53:26,744 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-10-17 10:53:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-10-17 10:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-10-17 10:53:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-10-17 10:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-10-17 10:53:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-10-17 10:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2022-10-17 10:53:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2022-10-17 10:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2022-10-17 10:53:26,745 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2022-10-17 10:53:26,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-10-17 10:53:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-10-17 10:53:26,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:53:26,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:53:26,831 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:53:26,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:53:27,292 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:53:27,307 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:53:27,308 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-17 10:53:27,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:27 BoogieIcfgContainer [2022-10-17 10:53:27,312 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:53:27,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:53:27,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:53:27,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:53:27,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:53:25" (1/3) ... [2022-10-17 10:53:27,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db58488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:27, skipping insertion in model container [2022-10-17 10:53:27,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:53:26" (2/3) ... [2022-10-17 10:53:27,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6db58488 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:53:27, skipping insertion in model container [2022-10-17 10:53:27,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:27" (3/3) ... [2022-10-17 10:53:27,324 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product54.cil.c [2022-10-17 10:53:27,350 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:53:27,350 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:53:27,417 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:53:27,426 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;@30158ecc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:53:27,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:53:27,467 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 82 states have internal predecessors, (100), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) [2022-10-17 10:53:27,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-17 10:53:27,478 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:27,479 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:27,480 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:27,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:27,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1209428772, now seen corresponding path program 1 times [2022-10-17 10:53:27,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:27,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965815261] [2022-10-17 10:53:27,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:27,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:27,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:27,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:27,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:27,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965815261] [2022-10-17 10:53:27,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965815261] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:27,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:27,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:53:27,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306822481] [2022-10-17 10:53:27,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:27,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:53:27,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:27,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:53:27,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:53:27,844 INFO L87 Difference]: Start difference. First operand has 96 states, 72 states have (on average 1.3888888888888888) internal successors, (100), 82 states have internal predecessors, (100), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 9 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:27,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:27,888 INFO L93 Difference]: Finished difference Result 184 states and 251 transitions. [2022-10-17 10:53:27,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:53:27,890 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-17 10:53:27,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:27,905 INFO L225 Difference]: With dead ends: 184 [2022-10-17 10:53:27,905 INFO L226 Difference]: Without dead ends: 87 [2022-10-17 10:53:27,910 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:53:27,914 INFO L413 NwaCegarLoop]: 122 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, 122 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 [2022-10-17 10:53:27,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:53:27,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-17 10:53:27,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2022-10-17 10:53:27,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.323076923076923) internal successors, (86), 74 states have internal predecessors, (86), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2022-10-17 10:53:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 113 transitions. [2022-10-17 10:53:27,977 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 113 transitions. Word has length 19 [2022-10-17 10:53:27,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:27,978 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 113 transitions. [2022-10-17 10:53:27,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:27,979 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 113 transitions. [2022-10-17 10:53:27,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-17 10:53:27,982 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:27,982 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] [2022-10-17 10:53:27,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:53:27,983 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:27,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:27,984 INFO L85 PathProgramCache]: Analyzing trace with hash -560123068, now seen corresponding path program 1 times [2022-10-17 10:53:27,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:27,985 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723526700] [2022-10-17 10:53:27,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:27,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:28,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:28,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:28,218 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723526700] [2022-10-17 10:53:28,219 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1723526700] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:28,219 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:28,219 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:53:28,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068419420] [2022-10-17 10:53:28,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:28,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:53:28,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:28,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:53:28,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:53:28,223 INFO L87 Difference]: Start difference. First operand 87 states and 113 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:28,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:28,261 INFO L93 Difference]: Finished difference Result 139 states and 181 transitions. [2022-10-17 10:53:28,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:53:28,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-10-17 10:53:28,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:28,265 INFO L225 Difference]: With dead ends: 139 [2022-10-17 10:53:28,265 INFO L226 Difference]: Without dead ends: 78 [2022-10-17 10:53:28,266 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:53:28,268 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 13 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 183 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 [2022-10-17 10:53:28,269 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 183 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:53:28,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-17 10:53:28,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-10-17 10:53:28,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3389830508474576) internal successors, (79), 68 states have internal predecessors, (79), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:53:28,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 101 transitions. [2022-10-17 10:53:28,285 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 101 transitions. Word has length 20 [2022-10-17 10:53:28,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:28,286 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 101 transitions. [2022-10-17 10:53:28,286 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:28,286 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 101 transitions. [2022-10-17 10:53:28,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-17 10:53:28,288 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:28,288 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] [2022-10-17 10:53:28,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:53:28,289 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:28,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:28,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1515126443, now seen corresponding path program 1 times [2022-10-17 10:53:28,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:28,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266873654] [2022-10-17 10:53:28,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:28,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:28,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:28,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:28,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:28,445 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266873654] [2022-10-17 10:53:28,445 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266873654] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:28,446 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:28,446 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 10:53:28,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313162157] [2022-10-17 10:53:28,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:28,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 10:53:28,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:28,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 10:53:28,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:53:28,451 INFO L87 Difference]: Start difference. First operand 78 states and 101 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:28,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:28,505 INFO L93 Difference]: Finished difference Result 149 states and 196 transitions. [2022-10-17 10:53:28,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 10:53:28,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-17 10:53:28,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:28,508 INFO L225 Difference]: With dead ends: 149 [2022-10-17 10:53:28,508 INFO L226 Difference]: Without dead ends: 78 [2022-10-17 10:53:28,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 10:53:28,533 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 95 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:28,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 99 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:53:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-17 10:53:28,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2022-10-17 10:53:28,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 68 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 6 states have call predecessors, (11), 11 states have call successors, (11) [2022-10-17 10:53:28,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2022-10-17 10:53:28,552 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 25 [2022-10-17 10:53:28,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:28,552 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2022-10-17 10:53:28,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 10:53:28,553 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2022-10-17 10:53:28,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-17 10:53:28,555 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:28,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:28,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-17 10:53:28,556 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:28,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:28,557 INFO L85 PathProgramCache]: Analyzing trace with hash -736049444, now seen corresponding path program 1 times [2022-10-17 10:53:28,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:28,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614727408] [2022-10-17 10:53:28,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:28,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:28,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2022-10-17 10:53:28,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:28,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:28,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:28,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614727408] [2022-10-17 10:53:28,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614727408] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:28,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:28,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:53:28,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619261593] [2022-10-17 10:53:28,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:28,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:53:28,675 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:28,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:53:28,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:53:28,676 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-10-17 10:53:28,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:28,968 INFO L93 Difference]: Finished difference Result 220 states and 285 transitions. [2022-10-17 10:53:28,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:53:28,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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 34 [2022-10-17 10:53:28,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:28,971 INFO L225 Difference]: With dead ends: 220 [2022-10-17 10:53:28,973 INFO L226 Difference]: Without dead ends: 149 [2022-10-17 10:53:28,975 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:53:28,981 INFO L413 NwaCegarLoop]: 103 mSDtfsCounter, 137 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:28,984 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 211 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:53:28,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2022-10-17 10:53:29,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 143. [2022-10-17 10:53:29,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 110 states have (on average 1.2818181818181817) internal successors, (141), 118 states have internal predecessors, (141), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2022-10-17 10:53:29,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 180 transitions. [2022-10-17 10:53:29,036 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 180 transitions. Word has length 34 [2022-10-17 10:53:29,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:29,037 INFO L495 AbstractCegarLoop]: Abstraction has 143 states and 180 transitions. [2022-10-17 10:53:29,037 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 states have internal predecessors, (31), 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) [2022-10-17 10:53:29,037 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 180 transitions. [2022-10-17 10:53:29,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 10:53:29,045 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:29,046 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] [2022-10-17 10:53:29,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-17 10:53:29,047 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:29,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1212283015, now seen corresponding path program 1 times [2022-10-17 10:53:29,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:29,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1470757311] [2022-10-17 10:53:29,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:29,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:29,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:29,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:29,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:29,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:29,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:29,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:29,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:29,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1470757311] [2022-10-17 10:53:29,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1470757311] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:29,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:29,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:53:29,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377025333] [2022-10-17 10:53:29,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:29,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:53:29,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:29,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:53:29,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:53:29,389 INFO L87 Difference]: Start difference. First operand 143 states and 180 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-10-17 10:53:29,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:29,649 INFO L93 Difference]: Finished difference Result 292 states and 382 transitions. [2022-10-17 10:53:29,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:53:29,650 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 44 [2022-10-17 10:53:29,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:29,663 INFO L225 Difference]: With dead ends: 292 [2022-10-17 10:53:29,665 INFO L226 Difference]: Without dead ends: 156 [2022-10-17 10:53:29,667 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:53:29,668 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 165 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:29,669 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 297 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:53:29,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-10-17 10:53:29,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 145. [2022-10-17 10:53:29,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 112 states have (on average 1.2767857142857142) internal successors, (143), 120 states have internal predecessors, (143), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2022-10-17 10:53:29,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 182 transitions. [2022-10-17 10:53:29,715 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 182 transitions. Word has length 44 [2022-10-17 10:53:29,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:29,715 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 182 transitions. [2022-10-17 10:53:29,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-10-17 10:53:29,716 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 182 transitions. [2022-10-17 10:53:29,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 10:53:29,717 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:29,718 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] [2022-10-17 10:53:29,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-17 10:53:29,718 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:29,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:29,719 INFO L85 PathProgramCache]: Analyzing trace with hash -191214661, now seen corresponding path program 1 times [2022-10-17 10:53:29,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:29,719 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273100443] [2022-10-17 10:53:29,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:29,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:29,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:29,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:29,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273100443] [2022-10-17 10:53:29,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273100443] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:29,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:29,853 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:53:29,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056370986] [2022-10-17 10:53:29,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:29,854 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:53:29,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:29,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:53:29,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:53:29,855 INFO L87 Difference]: Start difference. First operand 145 states and 182 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-10-17 10:53:30,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:30,028 INFO L93 Difference]: Finished difference Result 291 states and 373 transitions. [2022-10-17 10:53:30,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:53:30,030 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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 44 [2022-10-17 10:53:30,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:30,032 INFO L225 Difference]: With dead ends: 291 [2022-10-17 10:53:30,032 INFO L226 Difference]: Without dead ends: 153 [2022-10-17 10:53:30,033 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:53:30,034 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 68 mSDsluCounter, 301 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:30,035 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 399 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:53:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2022-10-17 10:53:30,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 148. [2022-10-17 10:53:30,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 115 states have (on average 1.2695652173913043) internal successors, (146), 123 states have internal predecessors, (146), 14 states have call successors, (14), 13 states have call predecessors, (14), 18 states have return successors, (25), 16 states have call predecessors, (25), 14 states have call successors, (25) [2022-10-17 10:53:30,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 185 transitions. [2022-10-17 10:53:30,064 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 185 transitions. Word has length 44 [2022-10-17 10:53:30,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:30,065 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 185 transitions. [2022-10-17 10:53:30,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 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) [2022-10-17 10:53:30,065 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 185 transitions. [2022-10-17 10:53:30,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-17 10:53:30,067 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:30,067 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] [2022-10-17 10:53:30,067 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-17 10:53:30,067 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:30,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:30,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1088539575, now seen corresponding path program 1 times [2022-10-17 10:53:30,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:30,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798670180] [2022-10-17 10:53:30,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:30,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:30,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:30,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:30,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798670180] [2022-10-17 10:53:30,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798670180] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:30,212 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:30,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-17 10:53:30,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956617752] [2022-10-17 10:53:30,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:30,213 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:53:30,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:30,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:53:30,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-17 10:53:30,215 INFO L87 Difference]: Start difference. First operand 148 states and 185 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-10-17 10:53:30,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:30,484 INFO L93 Difference]: Finished difference Result 414 states and 543 transitions. [2022-10-17 10:53:30,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:53:30,485 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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 44 [2022-10-17 10:53:30,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:30,488 INFO L225 Difference]: With dead ends: 414 [2022-10-17 10:53:30,489 INFO L226 Difference]: Without dead ends: 273 [2022-10-17 10:53:30,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:53:30,491 INFO L413 NwaCegarLoop]: 148 mSDtfsCounter, 200 mSDsluCounter, 182 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:30,491 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 330 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:53:30,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-10-17 10:53:30,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 265. [2022-10-17 10:53:30,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 204 states have (on average 1.25) internal successors, (255), 216 states have internal predecessors, (255), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2022-10-17 10:53:30,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 339 transitions. [2022-10-17 10:53:30,528 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 339 transitions. Word has length 44 [2022-10-17 10:53:30,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:30,528 INFO L495 AbstractCegarLoop]: Abstraction has 265 states and 339 transitions. [2022-10-17 10:53:30,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 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) [2022-10-17 10:53:30,529 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 339 transitions. [2022-10-17 10:53:30,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2022-10-17 10:53:30,530 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:30,531 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, 1] [2022-10-17 10:53:30,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-17 10:53:30,531 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:30,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:30,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1642882216, now seen corresponding path program 1 times [2022-10-17 10:53:30,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:30,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800908198] [2022-10-17 10:53:30,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:30,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:30,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:30,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:53:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:30,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:30,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:30,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800908198] [2022-10-17 10:53:30,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800908198] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:30,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:30,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-17 10:53:30,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201080138] [2022-10-17 10:53:30,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:30,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-17 10:53:30,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:30,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-17 10:53:30,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-17 10:53:30,718 INFO L87 Difference]: Start difference. First operand 265 states and 339 transitions. Second operand has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:53:30,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:30,963 INFO L93 Difference]: Finished difference Result 523 states and 670 transitions. [2022-10-17 10:53:30,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 10:53:30,964 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 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 46 [2022-10-17 10:53:30,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:30,968 INFO L225 Difference]: With dead ends: 523 [2022-10-17 10:53:30,968 INFO L226 Difference]: Without dead ends: 265 [2022-10-17 10:53:30,969 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-10-17 10:53:30,970 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 113 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:30,971 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 372 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-17 10:53:30,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-10-17 10:53:31,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2022-10-17 10:53:31,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 202 states have (on average 1.2425742574257426) internal successors, (251), 214 states have internal predecessors, (251), 29 states have call successors, (29), 28 states have call predecessors, (29), 31 states have return successors, (55), 30 states have call predecessors, (55), 29 states have call successors, (55) [2022-10-17 10:53:31,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 335 transitions. [2022-10-17 10:53:31,021 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 335 transitions. Word has length 46 [2022-10-17 10:53:31,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:31,024 INFO L495 AbstractCegarLoop]: Abstraction has 263 states and 335 transitions. [2022-10-17 10:53:31,024 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.5) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-10-17 10:53:31,024 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 335 transitions. [2022-10-17 10:53:31,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-17 10:53:31,026 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:31,026 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, 1, 1, 1] [2022-10-17 10:53:31,027 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-17 10:53:31,027 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:31,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:31,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1115763235, now seen corresponding path program 1 times [2022-10-17 10:53:31,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:31,028 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945659025] [2022-10-17 10:53:31,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:31,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:31,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:31,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:53:31,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:31,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-10-17 10:53:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:31,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:31,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:31,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:31,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:31,246 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945659025] [2022-10-17 10:53:31,246 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945659025] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:31,246 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:53:31,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-17 10:53:31,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409499716] [2022-10-17 10:53:31,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:31,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-17 10:53:31,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:31,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-17 10:53:31,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-17 10:53:31,249 INFO L87 Difference]: Start difference. First operand 263 states and 335 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:53:31,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:31,810 INFO L93 Difference]: Finished difference Result 548 states and 721 transitions. [2022-10-17 10:53:31,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-17 10:53:31,811 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 48 [2022-10-17 10:53:31,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:31,816 INFO L225 Difference]: With dead ends: 548 [2022-10-17 10:53:31,816 INFO L226 Difference]: Without dead ends: 338 [2022-10-17 10:53:31,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=106, Invalid=236, Unknown=0, NotChecked=0, Total=342 [2022-10-17 10:53:31,821 INFO L413 NwaCegarLoop]: 150 mSDtfsCounter, 190 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:31,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 503 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-17 10:53:31,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states. [2022-10-17 10:53:31,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 302. [2022-10-17 10:53:31,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 233 states have (on average 1.2188841201716738) internal successors, (284), 249 states have internal predecessors, (284), 32 states have call successors, (32), 28 states have call predecessors, (32), 36 states have return successors, (69), 34 states have call predecessors, (69), 32 states have call successors, (69) [2022-10-17 10:53:31,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 385 transitions. [2022-10-17 10:53:31,869 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 385 transitions. Word has length 48 [2022-10-17 10:53:31,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:31,870 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 385 transitions. [2022-10-17 10:53:31,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 5 states have internal predecessors, (41), 1 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2022-10-17 10:53:31,870 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 385 transitions. [2022-10-17 10:53:31,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2022-10-17 10:53:31,872 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:31,873 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:31,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-17 10:53:31,873 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:31,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:31,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1250129477, now seen corresponding path program 1 times [2022-10-17 10:53:31,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:31,874 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1497057485] [2022-10-17 10:53:31,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:31,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:31,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:53:32,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:53:32,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-10-17 10:53:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,071 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-17 10:53:32,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:32,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1497057485] [2022-10-17 10:53:32,072 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1497057485] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:53:32,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946035322] [2022-10-17 10:53:32,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:32,072 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:53:32,073 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:32,074 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:53:32,097 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:53:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:32,195 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-17 10:53:32,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:53:32,450 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:32,450 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:53:32,680 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 13 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:53:32,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946035322] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:53:32,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:53:32,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6, 6] total 12 [2022-10-17 10:53:32,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147426697] [2022-10-17 10:53:32,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:53:32,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-17 10:53:32,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:32,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-17 10:53:32,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2022-10-17 10:53:32,683 INFO L87 Difference]: Start difference. First operand 302 states and 385 transitions. Second operand has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 10:53:34,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:34,111 INFO L93 Difference]: Finished difference Result 734 states and 991 transitions. [2022-10-17 10:53:34,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-17 10:53:34,112 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) Word has length 77 [2022-10-17 10:53:34,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:34,118 INFO L225 Difference]: With dead ends: 734 [2022-10-17 10:53:34,118 INFO L226 Difference]: Without dead ends: 487 [2022-10-17 10:53:34,121 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 171 SyntacticMatches, 6 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 834 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=481, Invalid=2275, Unknown=0, NotChecked=0, Total=2756 [2022-10-17 10:53:34,122 INFO L413 NwaCegarLoop]: 160 mSDtfsCounter, 739 mSDsluCounter, 686 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 846 SdHoareTripleChecker+Invalid, 1445 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:34,123 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 846 Invalid, 1445 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 1152 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-17 10:53:34,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2022-10-17 10:53:34,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 417. [2022-10-17 10:53:34,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 417 states, 318 states have (on average 1.2138364779874213) internal successors, (386), 341 states have internal predecessors, (386), 47 states have call successors, (47), 41 states have call predecessors, (47), 51 states have return successors, (107), 46 states have call predecessors, (107), 47 states have call successors, (107) [2022-10-17 10:53:34,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 540 transitions. [2022-10-17 10:53:34,189 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 540 transitions. Word has length 77 [2022-10-17 10:53:34,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:34,190 INFO L495 AbstractCegarLoop]: Abstraction has 417 states and 540 transitions. [2022-10-17 10:53:34,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.583333333333334) internal successors, (103), 9 states have internal predecessors, (103), 3 states have call successors, (12), 6 states have call predecessors, (12), 4 states have return successors, (10), 4 states have call predecessors, (10), 2 states have call successors, (10) [2022-10-17 10:53:34,190 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 540 transitions. [2022-10-17 10:53:34,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-17 10:53:34,200 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:34,200 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:34,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:53:34,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-17 10:53:34,421 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:34,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:34,422 INFO L85 PathProgramCache]: Analyzing trace with hash -1710488291, now seen corresponding path program 1 times [2022-10-17 10:53:34,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:34,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902065381] [2022-10-17 10:53:34,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:34,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:53:34,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:53:34,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:34,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:53:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:53:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:53:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:34,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:35,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:53:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:35,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:53:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:35,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:35,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:35,012 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 52 proven. 23 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-10-17 10:53:35,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:35,012 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902065381] [2022-10-17 10:53:35,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902065381] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:53:35,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313282780] [2022-10-17 10:53:35,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:35,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:53:35,013 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:35,018 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:53:35,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:53:35,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:35,158 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-17 10:53:35,168 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:53:35,415 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 80 proven. 11 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:53:35,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:53:35,728 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 53 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-10-17 10:53:35,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313282780] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:53:35,728 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:53:35,729 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 9] total 17 [2022-10-17 10:53:35,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369924390] [2022-10-17 10:53:35,729 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:53:35,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-10-17 10:53:35,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:35,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-10-17 10:53:35,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=211, Unknown=0, NotChecked=0, Total=272 [2022-10-17 10:53:35,732 INFO L87 Difference]: Start difference. First operand 417 states and 540 transitions. Second operand has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 15 states have internal predecessors, (143), 6 states have call successors, (27), 8 states have call predecessors, (27), 6 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-10-17 10:53:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:37,140 INFO L93 Difference]: Finished difference Result 1151 states and 1582 transitions. [2022-10-17 10:53:37,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-17 10:53:37,141 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 15 states have internal predecessors, (143), 6 states have call successors, (27), 8 states have call predecessors, (27), 6 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) Word has length 134 [2022-10-17 10:53:37,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:37,148 INFO L225 Difference]: With dead ends: 1151 [2022-10-17 10:53:37,149 INFO L226 Difference]: Without dead ends: 788 [2022-10-17 10:53:37,152 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 289 SyntacticMatches, 6 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=384, Invalid=1098, Unknown=0, NotChecked=0, Total=1482 [2022-10-17 10:53:37,153 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 564 mSDsluCounter, 815 mSDsCounter, 0 mSdLazyCounter, 1134 mSolverCounterSat, 279 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 568 SdHoareTripleChecker+Valid, 1028 SdHoareTripleChecker+Invalid, 1413 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 279 IncrementalHoareTripleChecker+Valid, 1134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:37,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [568 Valid, 1028 Invalid, 1413 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [279 Valid, 1134 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-10-17 10:53:37,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2022-10-17 10:53:37,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 685. [2022-10-17 10:53:37,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 685 states, 518 states have (on average 1.2065637065637065) internal successors, (625), 549 states have internal predecessors, (625), 78 states have call successors, (78), 71 states have call predecessors, (78), 88 states have return successors, (172), 80 states have call predecessors, (172), 78 states have call successors, (172) [2022-10-17 10:53:37,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 685 states to 685 states and 875 transitions. [2022-10-17 10:53:37,251 INFO L78 Accepts]: Start accepts. Automaton has 685 states and 875 transitions. Word has length 134 [2022-10-17 10:53:37,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:37,252 INFO L495 AbstractCegarLoop]: Abstraction has 685 states and 875 transitions. [2022-10-17 10:53:37,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.411764705882353) internal successors, (143), 15 states have internal predecessors, (143), 6 states have call successors, (27), 8 states have call predecessors, (27), 6 states have return successors, (18), 6 states have call predecessors, (18), 6 states have call successors, (18) [2022-10-17 10:53:37,253 INFO L276 IsEmpty]: Start isEmpty. Operand 685 states and 875 transitions. [2022-10-17 10:53:37,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2022-10-17 10:53:37,257 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:53:37,257 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:37,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:53:37,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-17 10:53:37,478 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:53:37,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:53:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1764881189, now seen corresponding path program 1 times [2022-10-17 10:53:37,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:53:37,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069695751] [2022-10-17 10:53:37,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:37,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:53:37,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-10-17 10:53:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-10-17 10:53:37,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-10-17 10:53:37,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:37,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2022-10-17 10:53:37,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-10-17 10:53:37,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:53:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:37,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-17 10:53:37,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-17 10:53:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-17 10:53:37,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,718 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 45 proven. 6 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-17 10:53:37,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:53:37,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069695751] [2022-10-17 10:53:37,719 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069695751] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:53:37,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419031871] [2022-10-17 10:53:37,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:53:37,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:53:37,720 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:53:37,722 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:53:37,740 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:53:37,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:53:37,860 INFO L263 TraceCheckSpWp]: Trace formula consists of 572 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-17 10:53:37,865 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:53:37,883 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-10-17 10:53:37,883 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-17 10:53:37,884 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419031871] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:53:37,884 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-17 10:53:37,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 8 [2022-10-17 10:53:37,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30304208] [2022-10-17 10:53:37,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:53:37,885 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-17 10:53:37,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:53:37,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-17 10:53:37,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-10-17 10:53:37,887 INFO L87 Difference]: Start difference. First operand 685 states and 875 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-17 10:53:37,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:53:37,956 INFO L93 Difference]: Finished difference Result 904 states and 1143 transitions. [2022-10-17 10:53:37,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-17 10:53:37,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 134 [2022-10-17 10:53:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:53:37,958 INFO L225 Difference]: With dead ends: 904 [2022-10-17 10:53:37,958 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 10:53:37,961 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2022-10-17 10:53:37,962 INFO L413 NwaCegarLoop]: 98 mSDtfsCounter, 9 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 10:53:37,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 375 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 10:53:37,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 10:53:37,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 10:53:37,964 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) [2022-10-17 10:53:37,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 10:53:37,964 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 134 [2022-10-17 10:53:37,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:53:37,965 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 10:53:37,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 5 states have internal predecessors, (93), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2022-10-17 10:53:37,965 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 10:53:37,965 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 10:53:37,968 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 10:53:38,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-17 10:53:38,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-17 10:53:38,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 10:53:40,980 INFO L895 garLoopResultBuilder]: At program point deactivatePumpENTRY(lines 252 259) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-10-17 10:53:40,981 INFO L899 garLoopResultBuilder]: For program point deactivatePumpEXIT(lines 252 259) no Hoare annotation was computed. [2022-10-17 10:53:40,981 INFO L899 garLoopResultBuilder]: For program point deactivatePumpFINAL(lines 252 259) no Hoare annotation was computed. [2022-10-17 10:53:40,981 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 159 165) no Hoare annotation was computed. [2022-10-17 10:53:40,981 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 159 165) the Hoare annotation is: true [2022-10-17 10:53:40,981 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 882 893) the Hoare annotation is: true [2022-10-17 10:53:40,981 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 882 893) no Hoare annotation was computed. [2022-10-17 10:53:40,981 INFO L899 garLoopResultBuilder]: For program point L886-1(lines 882 893) no Hoare annotation was computed. [2022-10-17 10:53:40,981 INFO L902 garLoopResultBuilder]: At program point L417(lines 392 421) the Hoare annotation is: true [2022-10-17 10:53:40,982 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 392 421) no Hoare annotation was computed. [2022-10-17 10:53:40,982 INFO L899 garLoopResultBuilder]: For program point L413(line 413) no Hoare annotation was computed. [2022-10-17 10:53:40,982 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 392 421) the Hoare annotation is: true [2022-10-17 10:53:40,982 INFO L899 garLoopResultBuilder]: For program point L406(lines 406 410) no Hoare annotation was computed. [2022-10-17 10:53:40,982 INFO L902 garLoopResultBuilder]: At program point L406-1(lines 406 410) the Hoare annotation is: true [2022-10-17 10:53:40,982 INFO L899 garLoopResultBuilder]: For program point L403(line 403) no Hoare annotation was computed. [2022-10-17 10:53:40,982 INFO L902 garLoopResultBuilder]: At program point L402-2(lines 402 416) the Hoare annotation is: true [2022-10-17 10:53:40,982 INFO L902 garLoopResultBuilder]: At program point L398(line 398) the Hoare annotation is: true [2022-10-17 10:53:40,982 INFO L899 garLoopResultBuilder]: For program point L398-1(line 398) no Hoare annotation was computed. [2022-10-17 10:53:40,983 INFO L895 garLoopResultBuilder]: At program point L238(line 238) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 (= |old(~waterLevel~0)| ~waterLevel~0)) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2022-10-17 10:53:40,983 INFO L895 garLoopResultBuilder]: At program point L238-1(lines 219 243) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not (= 1 ~systemActive~0))) (.cse3 (< |old(~waterLevel~0)| 2))) (and (let ((.cse1 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and .cse0 .cse1) .cse2 .cse3 (and (<= 2 ~waterLevel~0) .cse1))) (or .cse4 (not (= |old(~waterLevel~0)| 1)) .cse2 (and .cse0 (= ~waterLevel~0 1))) (or .cse4 .cse2 .cse3 (= |old(~waterLevel~0)| ~waterLevel~0)))) [2022-10-17 10:53:40,983 INFO L895 garLoopResultBuilder]: At program point L267(lines 260 270) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-10-17 10:53:40,983 INFO L899 garLoopResultBuilder]: For program point L139-1(lines 138 157) no Hoare annotation was computed. [2022-10-17 10:53:40,984 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 135 158) no Hoare annotation was computed. [2022-10-17 10:53:40,984 INFO L895 garLoopResultBuilder]: At program point L899(lines 894 902) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-10-17 10:53:40,984 INFO L899 garLoopResultBuilder]: For program point L862(lines 862 866) no Hoare annotation was computed. [2022-10-17 10:53:40,984 INFO L895 garLoopResultBuilder]: At program point L862-2(lines 858 869) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-10-17 10:53:40,984 INFO L895 garLoopResultBuilder]: At program point L276(lines 271 279) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-10-17 10:53:40,985 INFO L899 garLoopResultBuilder]: For program point L227(lines 227 235) no Hoare annotation was computed. [2022-10-17 10:53:40,985 INFO L899 garLoopResultBuilder]: For program point L223(lines 223 240) no Hoare annotation was computed. [2022-10-17 10:53:40,985 INFO L899 garLoopResultBuilder]: For program point L963(line 963) no Hoare annotation was computed. [2022-10-17 10:53:40,985 INFO L899 garLoopResultBuilder]: For program point L377(lines 377 383) no Hoare annotation was computed. [2022-10-17 10:53:40,985 INFO L899 garLoopResultBuilder]: For program point L373(lines 373 386) no Hoare annotation was computed. [2022-10-17 10:53:40,985 INFO L895 garLoopResultBuilder]: At program point L373-1(lines 365 389) the Hoare annotation is: (let ((.cse5 (<= 2 ~waterLevel~0)) (.cse10 (= 1 ~systemActive~0)) (.cse6 (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|)) (.cse3 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse8 (<= 2 |timeShift_getWaterLevel_#res#1|))) (let ((.cse2 (= ~pumpRunning~0 0)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (and .cse5 .cse10 .cse6 .cse3 .cse8)) (.cse4 (not .cse10)) (.cse9 (< |old(~waterLevel~0)| 2))) (and (or .cse0 .cse1 (and .cse2 .cse3) .cse4 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse4 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1| 1) (= |timeShift_getWaterLevel_#res#1| 1))) (let ((.cse7 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and .cse5 .cse6 .cse7 .cse8) .cse4 .cse9 (and .cse2 (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~6#1|) .cse7 (<= 1 |timeShift_getWaterLevel_#res#1|)))) (or .cse0 .cse1 .cse4 .cse9)))) [2022-10-17 10:53:40,985 INFO L899 garLoopResultBuilder]: For program point L146-1(lines 146 152) no Hoare annotation was computed. [2022-10-17 10:53:40,986 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 135 158) the Hoare annotation is: (let ((.cse1 (not (= 1 ~systemActive~0))) (.cse0 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and (= ~pumpRunning~0 0) .cse0) .cse1 (not (<= 1 |old(~waterLevel~0)|))) (or .cse1 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse0)))) [2022-10-17 10:53:40,986 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 135 158) no Hoare annotation was computed. [2022-10-17 10:53:40,986 INFO L895 garLoopResultBuilder]: At program point L233(line 233) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-10-17 10:53:40,986 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 963) no Hoare annotation was computed. [2022-10-17 10:53:40,986 INFO L895 garLoopResultBuilder]: At program point L229(line 229) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))))) [2022-10-17 10:53:40,987 INFO L895 garLoopResultBuilder]: At program point L964(lines 959 966) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|))) (or .cse0 (< |old(~waterLevel~0)| 2)))) [2022-10-17 10:53:40,987 INFO L895 garLoopResultBuilder]: At program point L931(lines 926 934) the Hoare annotation is: (let ((.cse3 (<= 2 |timeShift_getWaterLevel_#res#1|)) (.cse2 (< |old(~waterLevel~0)| 2)) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 .cse2 (and (= |old(~waterLevel~0)| ~waterLevel~0) .cse3)) (let ((.cse4 (<= |old(~waterLevel~0)| (+ ~waterLevel~0 1)))) (or (and (<= 2 ~waterLevel~0) .cse4 .cse3) .cse1 .cse2 (and .cse5 .cse4 (<= 1 |timeShift_getWaterLevel_#res#1|)))) (or .cse0 (not (= |old(~waterLevel~0)| 1)) .cse1 (and .cse5 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-10-17 10:53:40,987 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 91) no Hoare annotation was computed. [2022-10-17 10:53:40,987 INFO L899 garLoopResultBuilder]: For program point L85-1(lines 85 91) no Hoare annotation was computed. [2022-10-17 10:53:40,987 INFO L895 garLoopResultBuilder]: At program point L110(lines 65 112) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-10-17 10:53:40,988 INFO L895 garLoopResultBuilder]: At program point L77(line 77) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-10-17 10:53:40,988 INFO L895 garLoopResultBuilder]: At program point L998(lines 993 1001) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:53:40,988 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 10:53:40,988 INFO L895 garLoopResultBuilder]: At program point L990(lines 986 992) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:53:40,988 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 10:53:40,988 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 10:53:40,988 INFO L895 garLoopResultBuilder]: At program point L359(lines 354 361) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-10-17 10:53:40,988 INFO L899 garLoopResultBuilder]: For program point L103(lines 103 107) no Hoare annotation was computed. [2022-10-17 10:53:40,989 INFO L895 garLoopResultBuilder]: At program point L103-2(lines 95 108) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-10-17 10:53:40,989 INFO L895 garLoopResultBuilder]: At program point L450(lines 446 452) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:53:40,989 INFO L899 garLoopResultBuilder]: For program point L66(lines 65 112) no Hoare annotation was computed. [2022-10-17 10:53:40,989 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 10:53:40,989 INFO L899 garLoopResultBuilder]: For program point L95(lines 95 108) no Hoare annotation was computed. [2022-10-17 10:53:40,989 INFO L895 garLoopResultBuilder]: At program point L983(lines 979 985) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-10-17 10:53:40,989 INFO L895 garLoopResultBuilder]: At program point L87(line 87) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0))) (or (and (not (< ~waterLevel~0 2)) .cse0 .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1 (<= 1 ~waterLevel~0)))) [2022-10-17 10:53:40,991 INFO L902 garLoopResultBuilder]: At program point L116(lines 55 120) the Hoare annotation is: true [2022-10-17 10:53:40,991 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 81) no Hoare annotation was computed. [2022-10-17 10:53:40,991 INFO L899 garLoopResultBuilder]: For program point L75-1(lines 75 81) no Hoare annotation was computed. [2022-10-17 10:53:40,991 INFO L899 garLoopResultBuilder]: For program point L67(lines 67 71) no Hoare annotation was computed. [2022-10-17 10:53:40,992 INFO L899 garLoopResultBuilder]: For program point L476(lines 476 483) no Hoare annotation was computed. [2022-10-17 10:53:40,992 INFO L899 garLoopResultBuilder]: For program point L476-2(lines 476 483) no Hoare annotation was computed. [2022-10-17 10:53:40,992 INFO L895 garLoopResultBuilder]: At program point L113(lines 64 114) the Hoare annotation is: false [2022-10-17 10:53:40,992 INFO L902 garLoopResultBuilder]: At program point L460(lines 453 462) the Hoare annotation is: true [2022-10-17 10:53:40,992 INFO L902 garLoopResultBuilder]: At program point L485(lines 466 488) the Hoare annotation is: true [2022-10-17 10:53:40,992 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 167 191) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (= ~pumpRunning~0 0) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-10-17 10:53:40,993 INFO L895 garLoopResultBuilder]: At program point L186(line 186) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-10-17 10:53:40,993 INFO L899 garLoopResultBuilder]: For program point L186-1(lines 167 191) no Hoare annotation was computed. [2022-10-17 10:53:40,993 INFO L895 garLoopResultBuilder]: At program point L944(lines 935 948) the Hoare annotation is: (let ((.cse0 (= ~pumpRunning~0 0))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and .cse0 (<= 2 ~waterLevel~0)) (and (<= 1 |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1|) .cse0))) [2022-10-17 10:53:40,993 INFO L895 garLoopResultBuilder]: At program point L331(lines 316 334) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0)))) (and (or .cse0 (= ~pumpRunning~0 0) .cse1 (not (<= 1 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0))))) [2022-10-17 10:53:40,994 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 329) no Hoare annotation was computed. [2022-10-17 10:53:40,994 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 329) no Hoare annotation was computed. [2022-10-17 10:53:40,994 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 167 191) no Hoare annotation was computed. [2022-10-17 10:53:40,994 INFO L895 garLoopResultBuilder]: At program point L249(lines 244 251) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-10-17 10:53:40,994 INFO L895 garLoopResultBuilder]: At program point L181(line 181) the Hoare annotation is: (let ((.cse3 (= 1 ~systemActive~0))) (let ((.cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0) .cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~1#1| 0))) (.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (not .cse3))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (< ~waterLevel~0 2))))) [2022-10-17 10:53:40,995 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 183) no Hoare annotation was computed. [2022-10-17 10:53:40,995 INFO L899 garLoopResultBuilder]: For program point L171(lines 171 188) no Hoare annotation was computed. [2022-10-17 10:53:40,995 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2022-10-17 10:53:40,995 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 870 881) no Hoare annotation was computed. [2022-10-17 10:53:40,995 INFO L899 garLoopResultBuilder]: For program point L874-1(lines 870 881) no Hoare annotation was computed. [2022-10-17 10:53:40,995 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 870 881) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (= |old(~waterLevel~0)| ~waterLevel~0))) (and (or (not (= ~pumpRunning~0 0)) .cse0 (not (<= 1 |old(~waterLevel~0)|)) .cse1) (or .cse0 .cse1 (not (<= 2 |old(~waterLevel~0)|))))) [2022-10-17 10:53:40,996 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__lowWaterSensorENTRY(lines 193 217) the Hoare annotation is: (or (= ~pumpRunning~0 |old(~pumpRunning~0)|) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-10-17 10:53:40,996 INFO L895 garLoopResultBuilder]: At program point L954(lines 949 957) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or .cse0 .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-10-17 10:53:40,996 INFO L895 garLoopResultBuilder]: At program point L207(line 207) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-10-17 10:53:40,996 INFO L895 garLoopResultBuilder]: At program point L203(line 203) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1) (or .cse0 .cse1 (and (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~5#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~2#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_~tmp~2#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0))))) [2022-10-17 10:53:40,997 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 209) no Hoare annotation was computed. [2022-10-17 10:53:40,997 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 214) no Hoare annotation was computed. [2022-10-17 10:53:40,997 INFO L895 garLoopResultBuilder]: At program point L350(lines 335 353) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0))) (.cse1 (not (<= 1 ~waterLevel~0)))) (and (or (and (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp~5#1| 0) (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_#res#1|) (<= 1 |processEnvironment__wrappee__lowWaterSensor_isLowWaterLevel_~tmp___0~2#1|) (= |processEnvironment__wrappee__lowWaterSensor_isLowWaterSensorDry_#res#1| 0)) .cse0 .cse1) (or (not (= |old(~pumpRunning~0)| 0)) .cse0 .cse1))) [2022-10-17 10:53:40,997 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__lowWaterSensorEXIT(lines 193 217) no Hoare annotation was computed. [2022-10-17 10:53:40,997 INFO L899 garLoopResultBuilder]: For program point L344(lines 344 348) no Hoare annotation was computed. [2022-10-17 10:53:40,997 INFO L899 garLoopResultBuilder]: For program point L344-2(lines 344 348) no Hoare annotation was computed. [2022-10-17 10:53:40,998 INFO L895 garLoopResultBuilder]: At program point L212(line 212) the Hoare annotation is: (or (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0)) (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~pumpRunning~0 0))) [2022-10-17 10:53:40,998 INFO L899 garLoopResultBuilder]: For program point L212-1(lines 193 217) no Hoare annotation was computed. [2022-10-17 10:53:41,001 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:53:41,004 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 10:53:41,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 10:53:41 BoogieIcfgContainer [2022-10-17 10:53:41,031 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 10:53:41,031 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 10:53:41,031 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 10:53:41,032 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 10:53:41,032 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:53:27" (3/4) ... [2022-10-17 10:53:41,036 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 10:53:41,042 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2022-10-17 10:53:41,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-10-17 10:53:41,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-10-17 10:53:41,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-10-17 10:53:41,043 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-10-17 10:53:41,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-10-17 10:53:41,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-10-17 10:53:41,044 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2022-10-17 10:53:41,053 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 55 nodes and edges [2022-10-17 10:53:41,054 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-10-17 10:53:41,055 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-10-17 10:53:41,056 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 10:53:41,056 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 10:53:41,057 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:53:41,058 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 10:53:41,087 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-10-17 10:53:41,087 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || \old(waterLevel) < 2) || (2 <= waterLevel && \old(waterLevel) <= waterLevel + 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || \old(waterLevel) == waterLevel) [2022-10-17 10:53:41,088 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || (\old(waterLevel) == waterLevel && 2 <= \result)) && (((((2 <= waterLevel && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) && 1 <= \result))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-10-17 10:53:41,089 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-10-17 10:53:41,089 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((!(\old(pumpRunning) == 0) || ((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && ((((((2 <= waterLevel && 2 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || (((pumpRunning == 0 && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result))) && (((!(\old(pumpRunning) == 0) || ((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || \old(waterLevel) < 2) [2022-10-17 10:53:41,090 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) [2022-10-17 10:53:41,090 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2022-10-17 10:53:41,090 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) [2022-10-17 10:53:41,090 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0) [2022-10-17 10:53:41,091 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((tmp == 0 && pumpRunning == \old(pumpRunning)) && 1 <= \result) && 1 <= tmp___0) && \result == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) [2022-10-17 10:53:41,091 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) [2022-10-17 10:53:41,091 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (tmp___0 == 0 && \result == 0)) [2022-10-17 10:53:41,092 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-10-17 10:53:41,126 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 10:53:41,126 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 10:53:41,127 INFO L158 Benchmark]: Toolchain (without parser) took 15273.23ms. Allocated memory was 111.1MB in the beginning and 211.8MB in the end (delta: 100.7MB). Free memory was 70.3MB in the beginning and 110.2MB in the end (delta: -39.9MB). Peak memory consumption was 59.8MB. Max. memory is 16.1GB. [2022-10-17 10:53:41,127 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:53:41,127 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.97ms. Allocated memory is still 111.1MB. Free memory was 70.1MB in the beginning and 75.8MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-10-17 10:53:41,128 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.25ms. Allocated memory is still 111.1MB. Free memory was 75.8MB in the beginning and 73.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-10-17 10:53:41,128 INFO L158 Benchmark]: Boogie Preprocessor took 71.85ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 71.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 10:53:41,129 INFO L158 Benchmark]: RCFGBuilder took 666.09ms. Allocated memory is still 111.1MB. Free memory was 71.6MB in the beginning and 51.9MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-10-17 10:53:41,129 INFO L158 Benchmark]: TraceAbstraction took 13716.18ms. Allocated memory was 111.1MB in the beginning and 211.8MB in the end (delta: 100.7MB). Free memory was 51.2MB in the beginning and 116.5MB in the end (delta: -65.3MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2022-10-17 10:53:41,130 INFO L158 Benchmark]: Witness Printer took 94.89ms. Allocated memory is still 211.8MB. Free memory was 116.5MB in the beginning and 110.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-10-17 10:53:41,132 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 111.1MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.97ms. Allocated memory is still 111.1MB. Free memory was 70.1MB in the beginning and 75.8MB in the end (delta: -5.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.25ms. Allocated memory is still 111.1MB. Free memory was 75.8MB in the beginning and 73.3MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.85ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 71.7MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 666.09ms. Allocated memory is still 111.1MB. Free memory was 71.6MB in the beginning and 51.9MB in the end (delta: 19.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13716.18ms. Allocated memory was 111.1MB in the beginning and 211.8MB in the end (delta: 100.7MB). Free memory was 51.2MB in the beginning and 116.5MB in the end (delta: -65.3MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Witness Printer took 94.89ms. Allocated memory is still 211.8MB. Free memory was 116.5MB in the beginning and 110.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 963]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 13.6s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2319 SdHoareTripleChecker+Valid, 3.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2293 mSDsluCounter, 4765 SdHoareTripleChecker+Invalid, 2.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3289 mSDsCounter, 814 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3298 IncrementalHoareTripleChecker+Invalid, 4112 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 814 mSolverCounterUnsat, 1476 mSDtfsCounter, 3298 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 827 GetRequests, 666 SyntacticMatches, 15 SemanticMatches, 146 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1213 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=685occurred in iteration=11, InterpolantAutomatonStates: 142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 12 MinimizatonAttempts, 241 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 46 LocationsWithAnnotation, 1311 PreInvPairs, 1420 NumberOfFragments, 1052 HoareAnnotationTreeSize, 1311 FomulaSimplifications, 1047 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 46 FomulaSimplificationsInter, 5807 FormulaSimplificationTreeSizeReductionInter, 2.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.4s InterpolantComputationTime, 1014 NumberOfCodeBlocks, 1014 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 1208 ConstructedInterpolants, 0 QuantifiedInterpolants, 2229 SizeOfPredicates, 10 NumberOfNonLiveVariables, 1567 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 17 InterpolantComputations, 10 PerfectInterpolantSequences, 444/516 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: 979]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 993]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 65]: Loop Invariant Derived loop invariant: ((2 <= waterLevel && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 365]: Loop Invariant Derived loop invariant: ((((((!(\old(pumpRunning) == 0) || ((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (tmp == 1 && \result == 1))) && ((((((2 <= waterLevel && 2 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || (((pumpRunning == 0 && 1 <= tmp) && \old(waterLevel) <= waterLevel + 1) && 1 <= \result))) && (((!(\old(pumpRunning) == 0) || ((((2 <= waterLevel && 1 == systemActive) && 2 <= tmp) && \old(waterLevel) == waterLevel) && 2 <= \result)) || !(1 == systemActive)) || \old(waterLevel) < 2) - InvariantResult [Line: 935]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) || (pumpRunning == 0 && 2 <= waterLevel)) || (1 <= \result && pumpRunning == 0) - InvariantResult [Line: 959]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 316]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (tmp___0 == 0 && \result == 0)) - InvariantResult [Line: 949]: Loop Invariant Derived loop invariant: ((!(1 == systemActive) || !(1 <= waterLevel)) || (pumpRunning == \old(pumpRunning) && \result == 0)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 926]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || (\old(waterLevel) == waterLevel && 2 <= \result)) && (((((2 <= waterLevel && \old(waterLevel) <= waterLevel + 1) && 2 <= \result) || !(1 == systemActive)) || \old(waterLevel) < 2) || ((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) && 1 <= \result))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 335]: Loop Invariant Derived loop invariant: ((((((tmp == 0 && pumpRunning == \old(pumpRunning)) && 1 <= \result) && 1 <= tmp___0) && \result == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) && ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= waterLevel)) - InvariantResult [Line: 858]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 271]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || \old(waterLevel) < 2) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 894]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || \old(waterLevel) < 2) || (pumpRunning == \old(pumpRunning) && \old(waterLevel) <= waterLevel + 1)) - InvariantResult [Line: 453]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 354]: Loop Invariant Derived loop invariant: ((!(waterLevel < 2) && 1 == systemActive) && splverifierCounter == 0) || (((pumpRunning == 0 && 1 == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) - InvariantResult [Line: 244]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 446]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 466]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 986]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 402]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 219]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0 && \old(waterLevel) <= waterLevel + 1) || !(1 == systemActive)) || \old(waterLevel) < 2) || (2 <= waterLevel && \old(waterLevel) <= waterLevel + 1)) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || (pumpRunning == 0 && waterLevel == 1))) && (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || \old(waterLevel) < 2) || \old(waterLevel) == waterLevel) - InvariantResult [Line: 392]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-10-17 10:53:41,195 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d946297-1089-40ed-9ec9-a1d560ed0e0a/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE