./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8 --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 d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 --- 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-e04fb08 [2022-11-16 12:19:00,457 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:19:00,459 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:19:00,483 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:19:00,483 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:19:00,484 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:19:00,486 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:19:00,488 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:19:00,489 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:19:00,490 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:19:00,491 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:19:00,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:19:00,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:19:00,494 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:19:00,495 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:19:00,496 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:19:00,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:19:00,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:19:00,500 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:19:00,502 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:19:00,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:19:00,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:19:00,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:19:00,507 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:19:00,511 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:19:00,511 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:19:00,511 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:19:00,512 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:19:00,513 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:19:00,514 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:19:00,515 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:19:00,516 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:19:00,516 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:19:00,517 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:19:00,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:19:00,519 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:19:00,520 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:19:00,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:19:00,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:19:00,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:19:00,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:19:00,527 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-16 12:19:00,563 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:19:00,564 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:19:00,565 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:19:00,565 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:19:00,566 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:19:00,566 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:19:00,567 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:19:00,567 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:19:00,568 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:19:00,568 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:19:00,569 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 12:19:00,569 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:19:00,570 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 12:19:00,570 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:19:00,570 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:19:00,570 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:19:00,571 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:19:00,571 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 12:19:00,571 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:19:00,571 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:19:00,572 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:19:00,572 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:19:00,572 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:19:00,572 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:19:00,573 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:00,573 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:19:00,573 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:19:00,573 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:19:00,574 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:19:00,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:19:00,574 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:19:00,574 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:19:00,575 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:19:00,575 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_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d44823aac48cec2911f68e219166f3ac1836e56b97e3a905bce4580d699376f2 [2022-11-16 12:19:00,910 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:19:00,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:19:00,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:19:00,942 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:19:00,942 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:19:00,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-11-16 12:19:01,024 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/data/bbd517d32/776f8ac2fda84f42a81e425323779698/FLAG3750a316d [2022-11-16 12:19:01,597 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:19:01,597 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2022-11-16 12:19:01,610 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/data/bbd517d32/776f8ac2fda84f42a81e425323779698/FLAG3750a316d [2022-11-16 12:19:01,869 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/data/bbd517d32/776f8ac2fda84f42a81e425323779698 [2022-11-16 12:19:01,873 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:19:01,876 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:19:01,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:01,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:19:01,882 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:19:01,882 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:01" (1/1) ... [2022-11-16 12:19:01,885 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e7d885e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:01, skipping insertion in model container [2022-11-16 12:19:01,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:19:01" (1/1) ... [2022-11-16 12:19:01,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:19:01,954 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:19:02,276 WARN L229 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_361631bb-ae73-4953-babe-11a293708476/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2022-11-16 12:19:02,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:02,350 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:19:02,401 WARN L229 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_361631bb-ae73-4953-babe-11a293708476/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[13010,13023] [2022-11-16 12:19:02,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:19:02,439 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:19:02,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02 WrapperNode [2022-11-16 12:19:02,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:19:02,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:02,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:19:02,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:19:02,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,475 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,506 INFO L138 Inliner]: procedures = 56, calls = 155, calls flagged for inlining = 25, calls inlined = 21, statements flattened = 260 [2022-11-16 12:19:02,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:19:02,510 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:19:02,510 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:19:02,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:19:02,522 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,522 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,525 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,526 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,531 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,538 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,540 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:19:02,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:19:02,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:19:02,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:19:02,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (1/1) ... [2022-11-16 12:19:02,564 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:19:02,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:02,590 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:19:02,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:19:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:19:02,636 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2022-11-16 12:19:02,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2022-11-16 12:19:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2022-11-16 12:19:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2022-11-16 12:19:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2022-11-16 12:19:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2022-11-16 12:19:02,637 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2022-11-16 12:19:02,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2022-11-16 12:19:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2022-11-16 12:19:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2022-11-16 12:19:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:19:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2022-11-16 12:19:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2022-11-16 12:19:02,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:19:02,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:19:02,723 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:19:02,726 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:19:03,173 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:19:03,186 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:19:03,187 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-16 12:19:03,195 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:03 BoogieIcfgContainer [2022-11-16 12:19:03,196 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:19:03,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:19:03,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:19:03,201 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:19:03,202 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:19:01" (1/3) ... [2022-11-16 12:19:03,203 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4969dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:03, skipping insertion in model container [2022-11-16 12:19:03,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:19:02" (2/3) ... [2022-11-16 12:19:03,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4969dcf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:19:03, skipping insertion in model container [2022-11-16 12:19:03,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:03" (3/3) ... [2022-11-16 12:19:03,213 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2022-11-16 12:19:03,234 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:19:03,235 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:19:03,322 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:19:03,331 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;@38d98ca0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:19:03,331 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:19:03,336 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) [2022-11-16 12:19:03,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-16 12:19:03,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:03,347 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:03,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:03,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:03,356 INFO L85 PathProgramCache]: Analyzing trace with hash -340967460, now seen corresponding path program 1 times [2022-11-16 12:19:03,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:03,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1487780613] [2022-11-16 12:19:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:03,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:03,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:03,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:03,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:03,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1487780613] [2022-11-16 12:19:03,703 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1487780613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:03,703 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:03,704 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:19:03,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416390516] [2022-11-16 12:19:03,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:03,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 12:19:03,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:03,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 12:19:03,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:19:03,782 INFO L87 Difference]: Start difference. First operand has 83 states, 65 states have (on average 1.4) internal successors, (91), 73 states have internal predecessors, (91), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 8 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 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) [2022-11-16 12:19:03,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:03,847 INFO L93 Difference]: Finished difference Result 158 states and 217 transitions. [2022-11-16 12:19:03,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 12:19:03,849 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 [2022-11-16 12:19:03,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:03,861 INFO L225 Difference]: With dead ends: 158 [2022-11-16 12:19:03,862 INFO L226 Difference]: Without dead ends: 74 [2022-11-16 12:19:03,867 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 12:19:03,871 INFO L413 NwaCegarLoop]: 105 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, 105 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:03,872 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:19:03,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2022-11-16 12:19:03,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2022-11-16 12:19:03,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 58 states have (on average 1.3275862068965518) internal successors, (77), 65 states have internal predecessors, (77), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 7 states have call predecessors, (9), 9 states have call successors, (9) [2022-11-16 12:19:03,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 96 transitions. [2022-11-16 12:19:03,925 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 96 transitions. Word has length 19 [2022-11-16 12:19:03,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:03,926 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 96 transitions. [2022-11-16 12:19:03,926 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) [2022-11-16 12:19:03,926 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 96 transitions. [2022-11-16 12:19:03,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-16 12:19:03,929 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:03,929 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] [2022-11-16 12:19:03,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:19:03,930 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:03,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:03,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1018100204, now seen corresponding path program 1 times [2022-11-16 12:19:03,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:03,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380479951] [2022-11-16 12:19:03,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:03,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:04,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:04,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:04,149 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380479951] [2022-11-16 12:19:04,149 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380479951] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:04,149 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:04,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:19:04,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827239896] [2022-11-16 12:19:04,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:04,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:19:04,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:04,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:19:04,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:04,153 INFO L87 Difference]: Start difference. First operand 74 states and 96 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) [2022-11-16 12:19:04,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:04,178 INFO L93 Difference]: Finished difference Result 113 states and 147 transitions. [2022-11-16 12:19:04,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:19:04,179 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 [2022-11-16 12:19:04,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:04,186 INFO L225 Difference]: With dead ends: 113 [2022-11-16 12:19:04,186 INFO L226 Difference]: Without dead ends: 65 [2022-11-16 12:19:04,187 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:19:04,189 INFO L413 NwaCegarLoop]: 83 mSDtfsCounter, 13 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 149 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:04,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 149 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 12:19:04,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-16 12:19:04,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-16 12:19:04,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3461538461538463) internal successors, (70), 59 states have internal predecessors, (70), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 12:19:04,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 84 transitions. [2022-11-16 12:19:04,201 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 84 transitions. Word has length 20 [2022-11-16 12:19:04,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:04,202 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 84 transitions. [2022-11-16 12:19:04,203 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) [2022-11-16 12:19:04,203 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 84 transitions. [2022-11-16 12:19:04,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-11-16 12:19:04,204 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:04,204 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:04,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:19:04,205 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:04,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:04,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2024480710, now seen corresponding path program 1 times [2022-11-16 12:19:04,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:04,206 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716113337] [2022-11-16 12:19:04,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:04,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:04,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:04,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:04,453 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716113337] [2022-11-16 12:19:04,453 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716113337] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:04,454 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:04,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:19:04,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715604017] [2022-11-16 12:19:04,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:04,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:04,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:04,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:04,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:04,457 INFO L87 Difference]: Start difference. First operand 65 states and 84 transitions. Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) [2022-11-16 12:19:04,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:04,561 INFO L93 Difference]: Finished difference Result 123 states and 162 transitions. [2022-11-16 12:19:04,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:19:04,562 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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 [2022-11-16 12:19:04,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:04,564 INFO L225 Difference]: With dead ends: 123 [2022-11-16 12:19:04,564 INFO L226 Difference]: Without dead ends: 65 [2022-11-16 12:19:04,565 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:04,566 INFO L413 NwaCegarLoop]: 77 mSDtfsCounter, 109 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:04,567 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 175 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:19:04,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-11-16 12:19:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2022-11-16 12:19:04,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 52 states have (on average 1.3269230769230769) internal successors, (69), 59 states have internal predecessors, (69), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 5 states have call predecessors, (7), 7 states have call successors, (7) [2022-11-16 12:19:04,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 83 transitions. [2022-11-16 12:19:04,578 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 83 transitions. Word has length 25 [2022-11-16 12:19:04,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:04,578 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 83 transitions. [2022-11-16 12:19:04,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 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) [2022-11-16 12:19:04,579 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 83 transitions. [2022-11-16 12:19:04,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2022-11-16 12:19:04,580 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:04,580 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:04,581 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:19:04,581 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:04,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:04,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1530438702, now seen corresponding path program 1 times [2022-11-16 12:19:04,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:04,582 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094522698] [2022-11-16 12:19:04,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:04,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:04,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:04,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:04,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:19:04,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:04,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:04,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094522698] [2022-11-16 12:19:04,765 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094522698] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:04,767 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:04,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:19:04,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735788468] [2022-11-16 12:19:04,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:04,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:19:04,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:04,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:19:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:19:04,773 INFO L87 Difference]: Start difference. First operand 65 states and 83 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:19:05,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:05,000 INFO L93 Difference]: Finished difference Result 186 states and 238 transitions. [2022-11-16 12:19:05,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:05,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 35 [2022-11-16 12:19:05,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:05,002 INFO L225 Difference]: With dead ends: 186 [2022-11-16 12:19:05,002 INFO L226 Difference]: Without dead ends: 128 [2022-11-16 12:19:05,003 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:05,005 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 149 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:05,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 261 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:19:05,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-11-16 12:19:05,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 122. [2022-11-16 12:19:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 98 states have (on average 1.2755102040816326) internal successors, (125), 105 states have internal predecessors, (125), 10 states have call successors, (10), 10 states have call predecessors, (10), 13 states have return successors, (15), 11 states have call predecessors, (15), 10 states have call successors, (15) [2022-11-16 12:19:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 150 transitions. [2022-11-16 12:19:05,070 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 150 transitions. Word has length 35 [2022-11-16 12:19:05,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:05,071 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 150 transitions. [2022-11-16 12:19:05,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:19:05,071 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 150 transitions. [2022-11-16 12:19:05,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 12:19:05,073 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:05,073 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:05,074 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:19:05,075 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:05,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:05,076 INFO L85 PathProgramCache]: Analyzing trace with hash 699766483, now seen corresponding path program 1 times [2022-11-16 12:19:05,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:05,076 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752971478] [2022-11-16 12:19:05,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:05,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:05,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:05,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:05,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:05,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752971478] [2022-11-16 12:19:05,240 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752971478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:05,240 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:05,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:19:05,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684506183] [2022-11-16 12:19:05,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:05,244 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:05,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:05,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:05,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:05,247 INFO L87 Difference]: Start difference. First operand 122 states and 150 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:19:05,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:05,527 INFO L93 Difference]: Finished difference Result 346 states and 449 transitions. [2022-11-16 12:19:05,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:19:05,528 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-16 12:19:05,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:05,536 INFO L225 Difference]: With dead ends: 346 [2022-11-16 12:19:05,537 INFO L226 Difference]: Without dead ends: 231 [2022-11-16 12:19:05,543 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:19:05,547 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 145 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:05,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 354 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:19:05,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2022-11-16 12:19:05,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 198. [2022-11-16 12:19:05,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 159 states have (on average 1.2767295597484276) internal successors, (203), 168 states have internal predecessors, (203), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2022-11-16 12:19:05,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 249 transitions. [2022-11-16 12:19:05,603 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 249 transitions. Word has length 39 [2022-11-16 12:19:05,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:05,603 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 249 transitions. [2022-11-16 12:19:05,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:19:05,604 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 249 transitions. [2022-11-16 12:19:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 12:19:05,605 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:05,605 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:05,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:19:05,605 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:05,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:05,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1720834837, now seen corresponding path program 1 times [2022-11-16 12:19:05,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:05,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612639348] [2022-11-16 12:19:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:05,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:05,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:05,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:05,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:05,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:05,742 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612639348] [2022-11-16 12:19:05,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612639348] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:05,743 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:05,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:19:05,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641243066] [2022-11-16 12:19:05,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:05,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:05,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:05,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:05,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:05,746 INFO L87 Difference]: Start difference. First operand 198 states and 249 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:19:05,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:05,899 INFO L93 Difference]: Finished difference Result 403 states and 514 transitions. [2022-11-16 12:19:05,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:05,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-16 12:19:05,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:05,902 INFO L225 Difference]: With dead ends: 403 [2022-11-16 12:19:05,902 INFO L226 Difference]: Without dead ends: 212 [2022-11-16 12:19:05,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:19:05,904 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 59 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 331 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:05,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 331 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:19:05,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2022-11-16 12:19:05,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 204. [2022-11-16 12:19:05,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 165 states have (on average 1.2666666666666666) internal successors, (209), 174 states have internal predecessors, (209), 18 states have call successors, (18), 18 states have call predecessors, (18), 20 states have return successors, (28), 18 states have call predecessors, (28), 18 states have call successors, (28) [2022-11-16 12:19:05,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 255 transitions. [2022-11-16 12:19:05,942 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 255 transitions. Word has length 39 [2022-11-16 12:19:05,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:05,942 INFO L495 AbstractCegarLoop]: Abstraction has 204 states and 255 transitions. [2022-11-16 12:19:05,942 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:19:05,943 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 255 transitions. [2022-11-16 12:19:05,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-11-16 12:19:05,944 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:05,944 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:05,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:19:05,945 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:05,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:05,945 INFO L85 PathProgramCache]: Analyzing trace with hash 709717587, now seen corresponding path program 1 times [2022-11-16 12:19:05,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:05,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2117376346] [2022-11-16 12:19:05,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:05,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:05,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:06,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:06,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:06,026 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2117376346] [2022-11-16 12:19:06,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2117376346] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:06,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:06,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-16 12:19:06,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231609737] [2022-11-16 12:19:06,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:06,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 12:19:06,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:06,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 12:19:06,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:19:06,029 INFO L87 Difference]: Start difference. First operand 204 states and 255 transitions. Second operand has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:19:06,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:06,141 INFO L93 Difference]: Finished difference Result 372 states and 470 transitions. [2022-11-16 12:19:06,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-16 12:19:06,142 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 39 [2022-11-16 12:19:06,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:06,143 INFO L225 Difference]: With dead ends: 372 [2022-11-16 12:19:06,144 INFO L226 Difference]: Without dead ends: 175 [2022-11-16 12:19:06,145 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:19:06,145 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 60 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:06,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 217 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:19:06,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-11-16 12:19:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 170. [2022-11-16 12:19:06,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 170 states, 137 states have (on average 1.2408759124087592) internal successors, (170), 145 states have internal predecessors, (170), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (20), 15 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-16 12:19:06,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 205 transitions. [2022-11-16 12:19:06,165 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 205 transitions. Word has length 39 [2022-11-16 12:19:06,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:06,165 INFO L495 AbstractCegarLoop]: Abstraction has 170 states and 205 transitions. [2022-11-16 12:19:06,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.2) internal successors, (36), 4 states have internal predecessors, (36), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-16 12:19:06,166 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 205 transitions. [2022-11-16 12:19:06,167 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2022-11-16 12:19:06,167 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:06,167 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:06,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:19:06,167 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:06,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:06,168 INFO L85 PathProgramCache]: Analyzing trace with hash 11284582, now seen corresponding path program 1 times [2022-11-16 12:19:06,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:06,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708627205] [2022-11-16 12:19:06,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:06,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:06,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:19:06,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:06,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:06,273 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708627205] [2022-11-16 12:19:06,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708627205] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:06,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:06,274 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:19:06,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384208602] [2022-11-16 12:19:06,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:06,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:06,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:06,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:06,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:19:06,284 INFO L87 Difference]: Start difference. First operand 170 states and 205 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:19:06,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:06,449 INFO L93 Difference]: Finished difference Result 333 states and 402 transitions. [2022-11-16 12:19:06,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:19:06,449 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 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 41 [2022-11-16 12:19:06,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:06,451 INFO L225 Difference]: With dead ends: 333 [2022-11-16 12:19:06,451 INFO L226 Difference]: Without dead ends: 170 [2022-11-16 12:19:06,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:19:06,453 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 99 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 308 SdHoareTripleChecker+Invalid, 141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:06,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 308 Invalid, 141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:19:06,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-11-16 12:19:06,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2022-11-16 12:19:06,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 135 states have (on average 1.2296296296296296) internal successors, (166), 143 states have internal predecessors, (166), 15 states have call successors, (15), 15 states have call predecessors, (15), 17 states have return successors, (20), 15 states have call predecessors, (20), 15 states have call successors, (20) [2022-11-16 12:19:06,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 201 transitions. [2022-11-16 12:19:06,473 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 201 transitions. Word has length 41 [2022-11-16 12:19:06,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:06,474 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 201 transitions. [2022-11-16 12:19:06,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 2 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-16 12:19:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 201 transitions. [2022-11-16 12:19:06,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2022-11-16 12:19:06,476 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:06,476 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:06,476 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:19:06,476 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:06,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:06,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1672553323, now seen corresponding path program 1 times [2022-11-16 12:19:06,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:06,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794311430] [2022-11-16 12:19:06,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:06,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:06,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:19:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:19:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:06,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:06,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:06,601 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794311430] [2022-11-16 12:19:06,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794311430] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:06,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:06,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:06,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543779984] [2022-11-16 12:19:06,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:06,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:19:06,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:06,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:19:06,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:19:06,603 INFO L87 Difference]: Start difference. First operand 168 states and 201 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:19:06,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:06,934 INFO L93 Difference]: Finished difference Result 379 states and 482 transitions. [2022-11-16 12:19:06,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-11-16 12:19:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 43 [2022-11-16 12:19:06,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:06,937 INFO L225 Difference]: With dead ends: 379 [2022-11-16 12:19:06,937 INFO L226 Difference]: Without dead ends: 259 [2022-11-16 12:19:06,938 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:19:06,940 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 167 mSDsluCounter, 327 mSDsCounter, 0 mSdLazyCounter, 278 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 278 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:06,941 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 415 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 278 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:19:06,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2022-11-16 12:19:06,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 253. [2022-11-16 12:19:06,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 202 states have (on average 1.2277227722772277) internal successors, (248), 215 states have internal predecessors, (248), 24 states have call successors, (24), 23 states have call predecessors, (24), 26 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-11-16 12:19:06,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 313 transitions. [2022-11-16 12:19:06,977 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 313 transitions. Word has length 43 [2022-11-16 12:19:06,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:06,978 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 313 transitions. [2022-11-16 12:19:06,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-16 12:19:06,978 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 313 transitions. [2022-11-16 12:19:06,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-11-16 12:19:06,979 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:06,979 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:06,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:19:06,980 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:06,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:06,980 INFO L85 PathProgramCache]: Analyzing trace with hash -422364352, now seen corresponding path program 1 times [2022-11-16 12:19:06,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:06,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863166211] [2022-11-16 12:19:06,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:06,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:07,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:19:07,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2022-11-16 12:19:07,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-11-16 12:19:07,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:07,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:07,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863166211] [2022-11-16 12:19:07,145 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863166211] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:07,146 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:07,146 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:19:07,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789779533] [2022-11-16 12:19:07,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:07,147 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:19:07,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:07,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:19:07,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:19:07,148 INFO L87 Difference]: Start difference. First operand 253 states and 313 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 12:19:07,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:07,502 INFO L93 Difference]: Finished difference Result 272 states and 333 transitions. [2022-11-16 12:19:07,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:19:07,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 45 [2022-11-16 12:19:07,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:07,509 INFO L225 Difference]: With dead ends: 272 [2022-11-16 12:19:07,509 INFO L226 Difference]: Without dead ends: 270 [2022-11-16 12:19:07,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:19:07,511 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 177 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:07,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 359 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:19:07,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-11-16 12:19:07,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 253. [2022-11-16 12:19:07,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 202 states have (on average 1.2128712871287128) internal successors, (245), 215 states have internal predecessors, (245), 24 states have call successors, (24), 23 states have call predecessors, (24), 26 states have return successors, (41), 24 states have call predecessors, (41), 24 states have call successors, (41) [2022-11-16 12:19:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 310 transitions. [2022-11-16 12:19:07,546 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 310 transitions. Word has length 45 [2022-11-16 12:19:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:07,546 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 310 transitions. [2022-11-16 12:19:07,546 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 1 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2022-11-16 12:19:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 310 transitions. [2022-11-16 12:19:07,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-11-16 12:19:07,549 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:07,550 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:07,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:19:07,550 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:07,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:07,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1050725005, now seen corresponding path program 1 times [2022-11-16 12:19:07,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:07,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074989630] [2022-11-16 12:19:07,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:07,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:07,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:19:07,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:07,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:19:07,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2022-11-16 12:19:07,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:19:07,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,754 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 12 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:19:07,754 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:07,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074989630] [2022-11-16 12:19:07,755 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074989630] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:07,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446800493] [2022-11-16 12:19:07,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:07,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:07,756 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:07,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:07,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:19:07,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:07,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:19:07,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:08,102 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 12:19:08,103 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:19:08,279 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-16 12:19:08,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446800493] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:19:08,279 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:19:08,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 9 [2022-11-16 12:19:08,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257208442] [2022-11-16 12:19:08,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:19:08,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-16 12:19:08,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:08,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-16 12:19:08,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:19:08,282 INFO L87 Difference]: Start difference. First operand 253 states and 310 transitions. Second operand has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:19:08,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:08,842 INFO L93 Difference]: Finished difference Result 586 states and 754 transitions. [2022-11-16 12:19:08,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-11-16 12:19:08,843 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) Word has length 78 [2022-11-16 12:19:08,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:08,846 INFO L225 Difference]: With dead ends: 586 [2022-11-16 12:19:08,846 INFO L226 Difference]: Without dead ends: 381 [2022-11-16 12:19:08,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 162 SyntacticMatches, 8 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=163, Invalid=389, Unknown=0, NotChecked=0, Total=552 [2022-11-16 12:19:08,848 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 236 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 240 SdHoareTripleChecker+Valid, 524 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:08,848 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [240 Valid, 524 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:19:08,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2022-11-16 12:19:08,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 348. [2022-11-16 12:19:08,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 276 states have (on average 1.213768115942029) internal successors, (335), 294 states have internal predecessors, (335), 34 states have call successors, (34), 33 states have call predecessors, (34), 37 states have return successors, (61), 32 states have call predecessors, (61), 34 states have call successors, (61) [2022-11-16 12:19:08,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 430 transitions. [2022-11-16 12:19:08,882 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 430 transitions. Word has length 78 [2022-11-16 12:19:08,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:08,883 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 430 transitions. [2022-11-16 12:19:08,883 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 8.11111111111111) internal successors, (73), 6 states have internal predecessors, (73), 3 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (7), 3 states have call predecessors, (7), 2 states have call successors, (7) [2022-11-16 12:19:08,883 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 430 transitions. [2022-11-16 12:19:08,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-16 12:19:08,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:08,885 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:08,897 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:19:09,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:09,092 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:09,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:09,093 INFO L85 PathProgramCache]: Analyzing trace with hash 1937588267, now seen corresponding path program 2 times [2022-11-16 12:19:09,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:09,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823411413] [2022-11-16 12:19:09,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:09,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:19:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:09,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:19:09,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:19:09,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 12:19:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:19:09,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:19:09,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:19:09,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:09,599 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 54 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-11-16 12:19:09,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:09,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823411413] [2022-11-16 12:19:09,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823411413] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:19:09,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [42885220] [2022-11-16 12:19:09,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:19:09,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:19:09,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:19:09,630 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:19:09,741 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:19:09,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:19:09,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:19:09,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:19:09,907 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2022-11-16 12:19:09,907 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:19:09,907 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [42885220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:09,908 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:19:09,908 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2022-11-16 12:19:09,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913371687] [2022-11-16 12:19:09,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:09,909 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:19:09,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:09,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:19:09,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:19:09,911 INFO L87 Difference]: Start difference. First operand 348 states and 430 transitions. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-16 12:19:10,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:10,290 INFO L93 Difference]: Finished difference Result 927 states and 1188 transitions. [2022-11-16 12:19:10,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:19:10,291 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 113 [2022-11-16 12:19:10,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:10,295 INFO L225 Difference]: With dead ends: 927 [2022-11-16 12:19:10,295 INFO L226 Difference]: Without dead ends: 626 [2022-11-16 12:19:10,297 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 126 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:19:10,297 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 210 mSDsluCounter, 397 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:10,298 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 532 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:19:10,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2022-11-16 12:19:10,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 565. [2022-11-16 12:19:10,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 565 states, 450 states have (on average 1.2066666666666668) internal successors, (543), 475 states have internal predecessors, (543), 55 states have call successors, (55), 54 states have call predecessors, (55), 59 states have return successors, (96), 51 states have call predecessors, (96), 55 states have call successors, (96) [2022-11-16 12:19:10,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 565 states to 565 states and 694 transitions. [2022-11-16 12:19:10,372 INFO L78 Accepts]: Start accepts. Automaton has 565 states and 694 transitions. Word has length 113 [2022-11-16 12:19:10,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:10,373 INFO L495 AbstractCegarLoop]: Abstraction has 565 states and 694 transitions. [2022-11-16 12:19:10,373 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2022-11-16 12:19:10,373 INFO L276 IsEmpty]: Start isEmpty. Operand 565 states and 694 transitions. [2022-11-16 12:19:10,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-11-16 12:19:10,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:19:10,382 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:10,393 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 12:19:10,587 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:19:10,588 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:19:10,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:19:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1481360023, now seen corresponding path program 1 times [2022-11-16 12:19:10,589 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:19:10,589 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589465405] [2022-11-16 12:19:10,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:19:10,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:19:10,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2022-11-16 12:19:10,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2022-11-16 12:19:10,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-16 12:19:10,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-16 12:19:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-11-16 12:19:10,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:19:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-11-16 12:19:10,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:19:10,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:19:10,768 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-11-16 12:19:10,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:19:10,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589465405] [2022-11-16 12:19:10,769 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589465405] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:19:10,769 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:19:10,769 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:19:10,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394951698] [2022-11-16 12:19:10,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:19:10,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:19:10,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:19:10,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:19:10,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:19:10,771 INFO L87 Difference]: Start difference. First operand 565 states and 694 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-16 12:19:10,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:19:10,972 INFO L93 Difference]: Finished difference Result 773 states and 939 transitions. [2022-11-16 12:19:10,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:19:10,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 113 [2022-11-16 12:19:10,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:19:10,997 INFO L225 Difference]: With dead ends: 773 [2022-11-16 12:19:10,997 INFO L226 Difference]: Without dead ends: 0 [2022-11-16 12:19:10,999 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:19:11,000 INFO L413 NwaCegarLoop]: 53 mSDtfsCounter, 110 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:19:11,000 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 259 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:19:11,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-16 12:19:11,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-16 12:19:11,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 12:19:11,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-16 12:19:11,001 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 113 [2022-11-16 12:19:11,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:19:11,002 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-16 12:19:11,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 5 states have internal predecessors, (78), 2 states have call successors, (6), 5 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2022-11-16 12:19:11,002 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-16 12:19:11,002 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-16 12:19:11,005 INFO L805 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:19:11,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-16 12:19:11,007 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-16 12:19:13,110 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__baseEXIT(lines 731 737) no Hoare annotation was computed. [2022-11-16 12:19:13,110 INFO L902 garLoopResultBuilder]: At program point processEnvironment__wrappee__baseFINAL(lines 731 737) the Hoare annotation is: true [2022-11-16 12:19:13,110 INFO L902 garLoopResultBuilder]: At program point changeMethaneLevelENTRY(lines 624 635) the Hoare annotation is: true [2022-11-16 12:19:13,110 INFO L899 garLoopResultBuilder]: For program point changeMethaneLevelEXIT(lines 624 635) no Hoare annotation was computed. [2022-11-16 12:19:13,110 INFO L899 garLoopResultBuilder]: For program point L628-1(lines 624 635) no Hoare annotation was computed. [2022-11-16 12:19:13,110 INFO L899 garLoopResultBuilder]: For program point L890(lines 890 894) no Hoare annotation was computed. [2022-11-16 12:19:13,111 INFO L895 garLoopResultBuilder]: At program point L696(lines 691 699) 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 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,111 INFO L899 garLoopResultBuilder]: For program point L890-2(lines 890 894) no Hoare annotation was computed. [2022-11-16 12:19:13,111 INFO L895 garLoopResultBuilder]: At program point L779(line 779) 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 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,111 INFO L899 garLoopResultBuilder]: For program point timeShiftFINAL(lines 707 730) no Hoare annotation was computed. [2022-11-16 12:19:13,111 INFO L895 garLoopResultBuilder]: At program point L784(line 784) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 1 |old(~waterLevel~0)|)) (= |old(~waterLevel~0)| ~waterLevel~0)) (or .cse0 .cse2 (not (= |old(~waterLevel~0)| 1)) .cse1) (or .cse1 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) .cse2) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,112 INFO L895 garLoopResultBuilder]: At program point L784-1(lines 765 789) the Hoare annotation is: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse4 (= 1 ~systemActive~0))) (let ((.cse2 (not .cse4)) (.cse3 (and (<= 2 ~waterLevel~0) .cse4 .cse1)) (.cse0 (= ~pumpRunning~0 0))) (and (or (not (= |old(~pumpRunning~0)| 0)) (and .cse0 .cse1) .cse2 .cse3 (not (<= 1 |old(~waterLevel~0)|))) (or .cse2 .cse3 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse0 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|)))))) [2022-11-16 12:19:13,112 INFO L899 garLoopResultBuilder]: For program point L718-1(lines 718 724) no Hoare annotation was computed. [2022-11-16 12:19:13,112 INFO L899 garLoopResultBuilder]: For program point L553(line 553) no Hoare annotation was computed. [2022-11-16 12:19:13,112 INFO L895 garLoopResultBuilder]: At program point L673(lines 668 676) the Hoare annotation is: (let ((.cse1 (not (= |old(~pumpRunning~0)| 0))) (.cse0 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse1 .cse2 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (and (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|)) (not (<= 2 |old(~waterLevel~0)|))) (or .cse1 (not (= |old(~waterLevel~0)| 1)) .cse0 (and .cse2 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1))))) [2022-11-16 12:19:13,112 INFO L895 garLoopResultBuilder]: At program point L896(lines 881 899) 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 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,112 INFO L895 garLoopResultBuilder]: At program point L822(lines 817 825) 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 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,113 INFO L895 garLoopResultBuilder]: At program point L554(lines 549 556) 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 (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,113 INFO L899 garLoopResultBuilder]: For program point L711-1(lines 710 729) no Hoare annotation was computed. [2022-11-16 12:19:13,113 INFO L899 garLoopResultBuilder]: For program point L773(lines 773 781) no Hoare annotation was computed. [2022-11-16 12:19:13,113 INFO L899 garLoopResultBuilder]: For program point L769(lines 769 786) no Hoare annotation was computed. [2022-11-16 12:19:13,113 INFO L899 garLoopResultBuilder]: For program point L604(lines 604 608) no Hoare annotation was computed. [2022-11-16 12:19:13,113 INFO L895 garLoopResultBuilder]: At program point L604-2(lines 600 611) 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 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (<= 1 ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,113 INFO L895 garLoopResultBuilder]: At program point timeShiftENTRY(lines 707 730) the Hoare annotation is: (let ((.cse0 (not (= 1 ~systemActive~0)))) (and (or .cse0 (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) (not (<= 2 |old(~waterLevel~0)|))) (or (not (= |old(~pumpRunning~0)| 0)) (not (= |old(~waterLevel~0)| 1)) .cse0 (and (= ~pumpRunning~0 0) (= ~waterLevel~0 1))))) [2022-11-16 12:19:13,113 INFO L899 garLoopResultBuilder]: For program point L431(lines 431 437) no Hoare annotation was computed. [2022-11-16 12:19:13,114 INFO L899 garLoopResultBuilder]: For program point L427(lines 427 440) no Hoare annotation was computed. [2022-11-16 12:19:13,114 INFO L899 garLoopResultBuilder]: For program point timeShiftEXIT(lines 707 730) no Hoare annotation was computed. [2022-11-16 12:19:13,114 INFO L895 garLoopResultBuilder]: At program point L427-1(lines 419 443) the Hoare annotation is: (let ((.cse5 (= 1 ~systemActive~0))) (let ((.cse1 (and .cse5 (= |old(~waterLevel~0)| ~waterLevel~0) (<= 2 |timeShift_getWaterLevel_#res#1|) (<= 2 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|))) (.cse3 (not (<= 2 |old(~waterLevel~0)|))) (.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse4 (= ~pumpRunning~0 0)) (.cse2 (not .cse5))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse1 .cse2 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) .cse4 (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_getWaterLevel_#res#1|) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) .cse3) (or .cse0 (and (= |timeShift___utac_acc__Specification4_spec__1_~tmp~3#1| 1) .cse4 (= ~waterLevel~0 1) (= |timeShift_getWaterLevel_#res#1| 1)) (not (= |old(~waterLevel~0)| 1)) .cse2)))) [2022-11-16 12:19:13,114 INFO L899 garLoopResultBuilder]: For program point timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION(line 553) no Hoare annotation was computed. [2022-11-16 12:19:13,114 INFO L895 garLoopResultBuilder]: At program point L803(lines 798 805) 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 (and (= |timeShift_isLowWaterSensorDry_#res#1| 0) (= ~pumpRunning~0 0) (= |timeShift_isLowWaterLevel_~tmp~8#1| 0) (<= 1 |timeShift_isLowWaterLevel_#res#1|) (<= 1 |timeShift_processEnvironment_~tmp~6#1|) (<= 1 ~waterLevel~0) (<= 1 |timeShift_isLowWaterLevel_~tmp___0~2#1|)) (not (<= 2 |old(~waterLevel~0)|))))) [2022-11-16 12:19:13,114 INFO L899 garLoopResultBuilder]: For program point cleanupEXIT(lines 447 476) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L902 garLoopResultBuilder]: At program point cleanupENTRY(lines 447 476) the Hoare annotation is: true [2022-11-16 12:19:13,115 INFO L902 garLoopResultBuilder]: At program point L472(lines 447 476) the Hoare annotation is: true [2022-11-16 12:19:13,115 INFO L899 garLoopResultBuilder]: For program point L468(line 468) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L899 garLoopResultBuilder]: For program point L461(lines 461 465) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L902 garLoopResultBuilder]: At program point L461-1(lines 461 465) the Hoare annotation is: true [2022-11-16 12:19:13,115 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L902 garLoopResultBuilder]: At program point L457-2(lines 457 471) the Hoare annotation is: true [2022-11-16 12:19:13,115 INFO L902 garLoopResultBuilder]: At program point L453(line 453) the Hoare annotation is: true [2022-11-16 12:19:13,115 INFO L899 garLoopResultBuilder]: For program point L453-1(line 453) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L899 garLoopResultBuilder]: For program point L535(lines 535 542) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L899 garLoopResultBuilder]: For program point L535-2(lines 535 542) no Hoare annotation was computed. [2022-11-16 12:19:13,115 INFO L902 garLoopResultBuilder]: At program point L519(lines 512 521) the Hoare annotation is: true [2022-11-16 12:19:13,116 INFO L902 garLoopResultBuilder]: At program point L544(lines 525 547) the Hoare annotation is: true [2022-11-16 12:19:13,116 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-16 12:19:13,116 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-16 12:19:13,116 INFO L895 garLoopResultBuilder]: At program point L573(lines 569 575) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:19:13,116 INFO L899 garLoopResultBuilder]: For program point L957(lines 957 961) no Hoare annotation was computed. [2022-11-16 12:19:13,116 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-16 12:19:13,116 INFO L895 garLoopResultBuilder]: At program point L957-2(lines 949 962) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-16 12:19:13,116 INFO L899 garLoopResultBuilder]: For program point L920(lines 919 966) no Hoare annotation was computed. [2022-11-16 12:19:13,116 INFO L899 garLoopResultBuilder]: For program point L949(lines 949 962) no Hoare annotation was computed. [2022-11-16 12:19:13,116 INFO L895 garLoopResultBuilder]: At program point L941(line 941) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-16 12:19:13,117 INFO L902 garLoopResultBuilder]: At program point L970(lines 909 974) the Hoare annotation is: true [2022-11-16 12:19:13,117 INFO L899 garLoopResultBuilder]: For program point L929(lines 929 935) no Hoare annotation was computed. [2022-11-16 12:19:13,117 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-16 12:19:13,117 INFO L899 garLoopResultBuilder]: For program point L929-1(lines 929 935) no Hoare annotation was computed. [2022-11-16 12:19:13,117 INFO L895 garLoopResultBuilder]: At program point L508(lines 504 510) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:19:13,117 INFO L899 garLoopResultBuilder]: For program point L921(lines 921 925) no Hoare annotation was computed. [2022-11-16 12:19:13,117 INFO L895 garLoopResultBuilder]: At program point L905(lines 900 907) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-16 12:19:13,117 INFO L895 garLoopResultBuilder]: At program point L967(lines 918 968) the Hoare annotation is: false [2022-11-16 12:19:13,117 INFO L895 garLoopResultBuilder]: At program point L588(lines 583 591) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:19:13,117 INFO L899 garLoopResultBuilder]: For program point L939(lines 939 945) no Hoare annotation was computed. [2022-11-16 12:19:13,117 INFO L899 garLoopResultBuilder]: For program point L939-1(lines 939 945) no Hoare annotation was computed. [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point L580(lines 576 582) the Hoare annotation is: (and (= ~pumpRunning~0 0) (= 1 ~systemActive~0) (= ~waterLevel~0 1)) [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point L964(lines 919 966) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point L931(line 931) the Hoare annotation is: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (= |ULTIMATE.start_valid_product_#res#1| ~systemActive~0)) (.cse2 (= |ULTIMATE.start_test_~splverifierCounter~0#1| 0)) (.cse3 (= |ULTIMATE.start_main_~tmp~4#1| ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0 .cse1 .cse2 .cse3) (and (= ~pumpRunning~0 0) .cse0 .cse1 .cse2 (<= 1 ~waterLevel~0) .cse3))) [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point processEnvironment__wrappee__highWaterSensorENTRY(lines 739 763) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (= ~pumpRunning~0 0)) (.cse2 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 .cse2) (or .cse0 .cse1 .cse2 (not (<= 2 ~waterLevel~0))))) [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point L795(lines 790 797) the Hoare annotation is: (or (not (= ~waterLevel~0 1)) (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0))) [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point L758(line 758) the Hoare annotation is: (or (not (= |old(~pumpRunning~0)| 0)) (not (= 1 ~systemActive~0)) (not (<= 1 ~waterLevel~0))) [2022-11-16 12:19:13,118 INFO L899 garLoopResultBuilder]: For program point L758-1(lines 739 763) no Hoare annotation was computed. [2022-11-16 12:19:13,118 INFO L895 garLoopResultBuilder]: At program point L686(lines 677 690) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0))) (and (or .cse0 .cse1 (not (<= 2 ~waterLevel~0)) (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-11-16 12:19:13,118 INFO L899 garLoopResultBuilder]: For program point processEnvironment__wrappee__highWaterSensorEXIT(lines 739 763) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L895 garLoopResultBuilder]: At program point L753(line 753) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse1 (not (= 1 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 0)) (.cse3 (= |processEnvironment__wrappee__highWaterSensor_~tmp~5#1| 0))) (and (or .cse0 .cse1 (and .cse2 .cse3) (not (<= 2 ~waterLevel~0))) (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 .cse3 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))))) [2022-11-16 12:19:13,119 INFO L895 garLoopResultBuilder]: At program point L877(lines 862 880) the Hoare annotation is: (let ((.cse0 (not (= |old(~pumpRunning~0)| 0))) (.cse2 (= ~pumpRunning~0 0)) (.cse1 (not (= 1 ~systemActive~0)))) (and (or (not (= ~waterLevel~0 1)) .cse0 .cse1 (and .cse2 (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp___0~1#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_~tmp~7#1| 1) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterLevel_#res#1| 0) (= |processEnvironment__wrappee__highWaterSensor_isHighWaterSensorDry_#res#1| 1))) (or .cse0 .cse2 .cse1 (not (<= 2 ~waterLevel~0))))) [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point L747(lines 747 755) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point L681(lines 681 687) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point L743(lines 743 760) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point L871(lines 871 875) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point L871-2(lines 871 875) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point waterRiseEXIT(lines 612 623) no Hoare annotation was computed. [2022-11-16 12:19:13,119 INFO L899 garLoopResultBuilder]: For program point L616-1(lines 612 623) no Hoare annotation was computed. [2022-11-16 12:19:13,120 INFO L895 garLoopResultBuilder]: At program point waterRiseENTRY(lines 612 623) 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)|))))) [2022-11-16 12:19:13,124 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:19:13,126 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:19:13,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:19:13 BoogieIcfgContainer [2022-11-16 12:19:13,149 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:19:13,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:19:13,150 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:19:13,150 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:19:13,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:19:03" (3/4) ... [2022-11-16 12:19:13,153 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-16 12:19:13,159 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2022-11-16 12:19:13,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2022-11-16 12:19:13,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2022-11-16 12:19:13,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2022-11-16 12:19:13,160 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2022-11-16 12:19:13,161 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2022-11-16 12:19:13,167 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 53 nodes and edges [2022-11-16 12:19:13,168 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2022-11-16 12:19:13,168 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-16 12:19:13,168 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-16 12:19:13,169 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-16 12:19:13,169 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:19:13,170 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-16 12:19:13,197 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 [2022-11-16 12:19:13,198 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 [2022-11-16 12:19:13,198 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) [2022-11-16 12:19:13,200 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,201 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,202 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) [2022-11-16 12:19:13,203 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(1 == systemActive) || ((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) [2022-11-16 12:19:13,203 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((!(\old(pumpRunning) == 0) || (((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((((((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) [2022-11-16 12:19:13,203 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) [2022-11-16 12:19:13,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,204 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && tmp == 0) && 1 <= \result) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) [2022-11-16 12:19:13,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) [2022-11-16 12:19:13,205 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) [2022-11-16 12:19:13,237 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/witness.graphml [2022-11-16 12:19:13,237 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:19:13,237 INFO L158 Benchmark]: Toolchain (without parser) took 11361.67ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 71.3MB in the beginning and 106.3MB in the end (delta: -35.1MB). Peak memory consumption was 37.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,238 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:19:13,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 562.14ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 77.5MB in the end (delta: -6.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,238 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.36ms. Allocated memory is still 111.1MB. Free memory was 77.5MB in the beginning and 75.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,239 INFO L158 Benchmark]: Boogie Preprocessor took 32.29ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 73.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,239 INFO L158 Benchmark]: RCFGBuilder took 652.44ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 54.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,240 INFO L158 Benchmark]: TraceAbstraction took 9951.50ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 54.3MB in the beginning and 111.6MB in the end (delta: -57.2MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,240 INFO L158 Benchmark]: Witness Printer took 87.31ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 106.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-16 12:19:13,242 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 111.1MB. Free memory is still 89.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 562.14ms. Allocated memory is still 111.1MB. Free memory was 71.1MB in the beginning and 77.5MB in the end (delta: -6.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.36ms. Allocated memory is still 111.1MB. Free memory was 77.5MB in the beginning and 75.3MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.29ms. Allocated memory is still 111.1MB. Free memory was 75.3MB in the beginning and 73.3MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 652.44ms. Allocated memory is still 111.1MB. Free memory was 73.3MB in the beginning and 54.8MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 9951.50ms. Allocated memory was 111.1MB in the beginning and 182.5MB in the end (delta: 71.3MB). Free memory was 54.3MB in the beginning and 111.6MB in the end (delta: -57.2MB). Peak memory consumption was 79.1MB. Max. memory is 16.1GB. * Witness Printer took 87.31ms. Allocated memory is still 182.5MB. Free memory was 111.6MB in the beginning and 106.3MB in the end (delta: 5.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 553]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 9.8s, OverallIterations: 13, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1556 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1534 mSDsluCounter, 3989 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2879 mSDsCounter, 301 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1810 IncrementalHoareTripleChecker+Invalid, 2111 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 301 mSolverCounterUnsat, 1110 mSDtfsCounter, 1810 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 486 GetRequests, 353 SyntacticMatches, 11 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 259 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=565occurred in iteration=12, InterpolantAutomatonStates: 118, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 171 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 39 LocationsWithAnnotation, 999 PreInvPairs, 1082 NumberOfFragments, 1011 HoareAnnotationTreeSize, 999 FomulaSimplifications, 1361 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 39 FomulaSimplificationsInter, 3265 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 840 NumberOfCodeBlocks, 840 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 902 ConstructedInterpolants, 0 QuantifiedInterpolants, 1757 SizeOfPredicates, 8 NumberOfNonLiveVariables, 951 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 16 InterpolantComputations, 12 PerfectInterpolantSequences, 264/294 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: 576]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 677]: Loop Invariant Derived loop invariant: (((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) || (pumpRunning == 0 && \result == 0)) && (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || (pumpRunning == 0 && \result == 1)) - InvariantResult [Line: 419]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp)) || !(1 == systemActive)) || !(2 <= \old(waterLevel))) && ((((((1 == systemActive && \old(waterLevel) == waterLevel) && 2 <= \result) && 2 <= tmp) || !(1 == systemActive)) || ((((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || !(2 <= \old(waterLevel)))) && (((!(\old(pumpRunning) == 0) || (((tmp == 1 && pumpRunning == 0) && waterLevel == 1) && \result == 1)) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) - InvariantResult [Line: 569]: Loop Invariant Derived loop invariant: (pumpRunning == 0 && 1 == systemActive) && waterLevel == 1 - InvariantResult [Line: 900]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) - InvariantResult [Line: 457]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 817]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 909]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 798]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && waterLevel == 1 - InvariantResult [Line: 668]: Loop Invariant Derived loop invariant: (((!(1 == systemActive) || ((((((((\result == 0 && !(\old(pumpRunning) == 0)) && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= \result) && 1 <= tmp___0)) || (\old(waterLevel) == waterLevel && 2 <= \result)) || !(2 <= \old(waterLevel))) && (((!(\old(pumpRunning) == 0) || !(\old(waterLevel) == 1)) || !(1 == systemActive)) || ((pumpRunning == 0 && waterLevel == 1) && \result == 1)) - InvariantResult [Line: 862]: Loop Invariant Derived loop invariant: (((!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive)) || ((((pumpRunning == 0 && tmp___0 == 0) && tmp == 1) && \result == 0) && \result == 1)) && (((!(\old(pumpRunning) == 0) || pumpRunning == 0) || !(1 == systemActive)) || !(2 <= waterLevel)) - InvariantResult [Line: 525]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 600]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (pumpRunning == \old(pumpRunning) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 881]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || (((((pumpRunning == \old(pumpRunning) && \result == 0) && tmp == 0) && 1 <= \result) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 919]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && tmp == systemActive) || (((((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && splverifierCounter == 0) && 1 <= waterLevel) && tmp == systemActive) - InvariantResult [Line: 691]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && ((!(1 == systemActive) || ((pumpRunning == \old(pumpRunning) && \result == 0) && 1 <= waterLevel)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 447]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 765]: Loop Invariant Derived loop invariant: ((((!(\old(pumpRunning) == 0) || (pumpRunning == 0 && \old(waterLevel) == waterLevel)) || !(1 == systemActive)) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || !(1 <= \old(waterLevel))) && (((!(1 == systemActive) || ((2 <= waterLevel && 1 == systemActive) && \old(waterLevel) == waterLevel)) || ((((((\result == 0 && pumpRunning == 0) && tmp == 0) && 1 <= \result) && 1 <= tmp) && 1 <= waterLevel) && 1 <= tmp___0)) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 918]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 549]: Loop Invariant Derived loop invariant: ((!(\old(pumpRunning) == 0) || !(1 == systemActive)) || !(1 <= \old(waterLevel))) && (!(1 == systemActive) || !(2 <= \old(waterLevel))) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: (((pumpRunning == 0 && 1 == systemActive) && \result == systemActive) && tmp == systemActive) && waterLevel == 1 - InvariantResult [Line: 790]: Loop Invariant Derived loop invariant: (!(waterLevel == 1) || !(\old(pumpRunning) == 0)) || !(1 == systemActive) - InvariantResult [Line: 512]: Loop Invariant Derived loop invariant: 1 RESULT: Ultimate proved your program to be correct! [2022-11-16 12:19:13,273 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_361631bb-ae73-4953-babe-11a293708476/bin/uautomizer-tPACEb0tL8/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