./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c --full-output --architecture 32bit
--------------------------------------------------------------------------------
Checking for ERROR reachability
Using default analysis
Version 63182f13
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y --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 f8aef606697b9aeff574acbbe43b28a142b9105524bb5bbab5e1458056090146
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:25:23,392 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:25:23,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:25:23,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:25:23,432 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:25:23,436 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:25:23,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:25:23,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:25:23,448 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:25:23,456 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:25:23,458 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:25:23,459 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:25:23,460 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:25:23,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:25:23,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:25:23,469 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:25:23,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:25:23,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:25:23,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:25:23,486 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:25:23,489 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:25:23,490 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:25:23,494 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:25:23,495 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:25:23,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:25:23,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:25:23,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:25:23,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:25:23,512 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:25:23,513 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:25:23,514 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:25:23,515 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:25:23,517 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:25:23,519 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:25:23,521 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:25:23,521 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:25:23,522 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:25:23,522 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:25:23,523 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:25:23,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:25:23,525 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:25:23,526 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Default.epf
[2021-11-13 18:25:23,551 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:25:23,552 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:25:23,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:25:23,552 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:25:23,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:25:23,553 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:25:23,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:25:23,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:25:23,555 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:25:23,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:25:23,555 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:25:23,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-11-13 18:25:23,556 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:25:23,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:25:23,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:25:23,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:25:23,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:25:23,557 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:25:23,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:25:23,557 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:25:23,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:25:23,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:25:23,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:25:23,559 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:25:23,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:25:23,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:25:23,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:25:23,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:25:23,560 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-11-13 18:25:23,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-11-13 18:25:23,560 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:25:23,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:25:23,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:25:23,561 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:25:23,561 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_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8aef606697b9aeff574acbbe43b28a142b9105524bb5bbab5e1458056090146
[2021-11-13 18:25:23,845 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:25:23,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:25:23,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:25:23,873 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:25:23,874 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:25:23,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c
[2021-11-13 18:25:23,945 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/58ee39691/135cd685c7e34e2bbc6b7432869042df/FLAG8d77cb492
[2021-11-13 18:25:24,511 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:25:24,512 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c
[2021-11-13 18:25:24,538 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/58ee39691/135cd685c7e34e2bbc6b7432869042df/FLAG8d77cb492
[2021-11-13 18:25:24,811 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/58ee39691/135cd685c7e34e2bbc6b7432869042df
[2021-11-13 18:25:24,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:25:24,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:25:24,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:25:24,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:25:24,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:25:24,822 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:24" (1/1) ...
[2021-11-13 18:25:24,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6654de61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:24, skipping insertion in model container
[2021-11-13 18:25:24,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:24" (1/1) ...
[2021-11-13 18:25:24,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:25:24,884 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:25:25,191 WARN L228 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_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15994,16007]
[2021-11-13 18:25:25,213 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:25:25,230 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:25:25,347 WARN L228 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_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15994,16007]
[2021-11-13 18:25:25,364 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:25:25,385 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:25:25,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25 WrapperNode
[2021-11-13 18:25:25,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:25:25,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:25:25,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:25:25,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:25:25,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,417 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:25:25,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:25:25,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:25:25,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:25:25,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,470 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,479 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,484 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:25:25,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:25:25,497 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:25:25,497 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:25:25,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (1/1) ...
[2021-11-13 18:25:25,528 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:25:25,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:25:25,569 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:25,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:25:25,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:25:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2021-11-13 18:25:25,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2021-11-13 18:25:25,619 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2021-11-13 18:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2021-11-13 18:25:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2021-11-13 18:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2021-11-13 18:25:25,620 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2021-11-13 18:25:25,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2021-11-13 18:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2021-11-13 18:25:25,621 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2021-11-13 18:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int
[2021-11-13 18:25:25,621 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2021-11-13 18:25:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2021-11-13 18:25:25,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:25:25,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:25:26,500 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:25:26,501 INFO L299 CfgBuilder]: Removed 2 assume(true) statements.
[2021-11-13 18:25:26,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:26 BoogieIcfgContainer
[2021-11-13 18:25:26,504 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:25:26,507 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:25:26,507 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:25:26,511 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:25:26,511 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:25:24" (1/3) ...
[2021-11-13 18:25:26,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:25:26, skipping insertion in model container
[2021-11-13 18:25:26,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:25" (2/3) ...
[2021-11-13 18:25:26,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a862 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:25:26, skipping insertion in model container
[2021-11-13 18:25:26,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:26" (3/3) ...
[2021-11-13 18:25:26,515 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c
[2021-11-13 18:25:26,522 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:25:26,523 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:25:26,599 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:25:26,611 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 18:25:26,612 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 18:25:26,655 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:25:26,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-11-13 18:25:26,665 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:26,666 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:26,667 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:26,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:26,674 INFO L85 PathProgramCache]: Analyzing trace with hash -1535333319, now seen corresponding path program 1 times
[2021-11-13 18:25:26,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:26,686 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550000353]
[2021-11-13 18:25:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:26,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:26,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14
[2021-11-13 18:25:26,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:26,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:26,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:26,998 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550000353]
[2021-11-13 18:25:26,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550000353] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:27,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:27,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-11-13 18:25:27,002 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030416526]
[2021-11-13 18:25:27,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:27,007 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 18:25:27,007 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:27,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 18:25:27,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 18:25:27,042 INFO L87 Difference]: Start difference. First operand has 80 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:25:27,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:27,076 INFO L93 Difference]: Finished difference Result 152 states and 207 transitions.
[2021-11-13 18:25:27,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 18:25:27,080 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 23
[2021-11-13 18:25:27,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:27,088 INFO L225 Difference]: With dead ends: 152
[2021-11-13 18:25:27,088 INFO L226 Difference]: Without dead ends: 71
[2021-11-13 18:25:27,092 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 18:25:27,096 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.65ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:27,098 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 1.65ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 18:25:27,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2021-11-13 18:25:27,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2021-11-13 18:25:27,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9)
[2021-11-13 18:25:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions.
[2021-11-13 18:25:27,149 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 23
[2021-11-13 18:25:27,150 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:27,150 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions.
[2021-11-13 18:25:27,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.5) internal successors, (19), 2 states have internal predecessors, (19), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:25:27,151 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions.
[2021-11-13 18:25:27,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 18:25:27,155 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:27,155 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:27,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-11-13 18:25:27,156 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:27,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:27,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1879035650, now seen corresponding path program 1 times
[2021-11-13 18:25:27,157 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:27,158 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489693844]
[2021-11-13 18:25:27,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:27,159 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15
[2021-11-13 18:25:27,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:27,297 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:27,297 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489693844]
[2021-11-13 18:25:27,297 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [489693844] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:27,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:27,298 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 18:25:27,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875357056]
[2021-11-13 18:25:27,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:27,300 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:25:27,300 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:27,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:25:27,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:27,301 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:25:27,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:27,322 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions.
[2021-11-13 18:25:27,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:25:27,324 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24
[2021-11-13 18:25:27,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:27,328 INFO L225 Difference]: With dead ends: 107
[2021-11-13 18:25:27,328 INFO L226 Difference]: Without dead ends: 62
[2021-11-13 18:25:27,334 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:27,337 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 13 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.33ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.57ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:27,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 139 Invalid, 1 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 5.57ms Time]
[2021-11-13 18:25:27,342 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2021-11-13 18:25:27,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2021-11-13 18:25:27,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7)
[2021-11-13 18:25:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions.
[2021-11-13 18:25:27,363 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 24
[2021-11-13 18:25:27,364 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:27,364 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions.
[2021-11-13 18:25:27,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:25:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions.
[2021-11-13 18:25:27,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-11-13 18:25:27,369 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:27,369 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:27,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-11-13 18:25:27,370 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:27,371 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:27,376 INFO L85 PathProgramCache]: Analyzing trace with hash -110528575, now seen corresponding path program 1 times
[2021-11-13 18:25:27,376 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:27,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311081974]
[2021-11-13 18:25:27,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:27,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2021-11-13 18:25:27,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:27,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:27,504 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311081974]
[2021-11-13 18:25:27,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311081974] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:27,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:27,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 18:25:27,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752071258]
[2021-11-13 18:25:27,506 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:27,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:25:27,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:27,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:25:27,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:27,508 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:25:27,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:27,542 INFO L93 Difference]: Finished difference Result 117 states and 152 transitions.
[2021-11-13 18:25:27,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:25:27,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29
[2021-11-13 18:25:27,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:27,550 INFO L225 Difference]: With dead ends: 117
[2021-11-13 18:25:27,551 INFO L226 Difference]: Without dead ends: 62
[2021-11-13 18:25:27,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:27,558 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.46ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20.60ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:27,560 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 1.46ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 20.60ms Time]
[2021-11-13 18:25:27,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2021-11-13 18:25:27,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2021-11-13 18:25:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 54 states have internal predecessors, (64), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7)
[2021-11-13 18:25:27,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions.
[2021-11-13 18:25:27,579 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 29
[2021-11-13 18:25:27,579 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:27,579 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions.
[2021-11-13 18:25:27,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1)
[2021-11-13 18:25:27,580 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions.
[2021-11-13 18:25:27,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2021-11-13 18:25:27,587 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:27,587 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:27,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-11-13 18:25:27,588 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:27,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:27,589 INFO L85 PathProgramCache]: Analyzing trace with hash -1402592638, now seen corresponding path program 1 times
[2021-11-13 18:25:27,589 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:27,589 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956788109]
[2021-11-13 18:25:27,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:27,590 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20
[2021-11-13 18:25:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25
[2021-11-13 18:25:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:27,727 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:27,727 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1956788109]
[2021-11-13 18:25:27,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1956788109] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:27,728 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:27,728 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-11-13 18:25:27,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231647852]
[2021-11-13 18:25:27,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:27,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:25:27,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:27,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:25:27,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:27,731 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:27,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:27,788 INFO L93 Difference]: Finished difference Result 157 states and 201 transitions.
[2021-11-13 18:25:27,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:25:27,789 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34
[2021-11-13 18:25:27,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:27,791 INFO L225 Difference]: With dead ends: 157
[2021-11-13 18:25:27,791 INFO L226 Difference]: Without dead ends: 102
[2021-11-13 18:25:27,792 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:27,793 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 51 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.01ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32.29ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:27,798 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 140 Invalid, 10 Unknown, 0 Unchecked, 2.01ms Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 32.29ms Time]
[2021-11-13 18:25:27,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2021-11-13 18:25:27,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100.
[2021-11-13 18:25:27,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.294871794871795) internal successors, (101), 85 states have internal predecessors, (101), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13)
[2021-11-13 18:25:27,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions.
[2021-11-13 18:25:27,814 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 34
[2021-11-13 18:25:27,814 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:27,815 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions.
[2021-11-13 18:25:27,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:27,815 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions.
[2021-11-13 18:25:27,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:25:27,818 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:27,818 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:27,818 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-11-13 18:25:27,818 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:27,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:27,819 INFO L85 PathProgramCache]: Analyzing trace with hash -741551432, now seen corresponding path program 1 times
[2021-11-13 18:25:27,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:27,820 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835286328]
[2021-11-13 18:25:27,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:27,820 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:27,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2021-11-13 18:25:27,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2021-11-13 18:25:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:27,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:27,901 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:27,901 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835286328]
[2021-11-13 18:25:27,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835286328] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:27,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:27,902 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-11-13 18:25:27,902 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096820977]
[2021-11-13 18:25:27,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:27,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:25:27,903 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:27,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:25:27,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:25:27,904 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:28,003 INFO L93 Difference]: Finished difference Result 261 states and 338 transitions.
[2021-11-13 18:25:28,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 18:25:28,004 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 40
[2021-11-13 18:25:28,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:28,011 INFO L225 Difference]: With dead ends: 261
[2021-11-13 18:25:28,012 INFO L226 Difference]: Without dead ends: 168
[2021-11-13 18:25:28,013 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56
[2021-11-13 18:25:28,015 INFO L933 BasicCegarLoop]: 104 mSDtfsCounter, 142 mSDsluCounter, 167 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 37.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.73ms SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 49.94ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:28,018 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [142 Valid, 271 Invalid, 33 Unknown, 0 Unchecked, 3.73ms Time], IncrementalHoareTripleChecker [13 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 49.94ms Time]
[2021-11-13 18:25:28,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states.
[2021-11-13 18:25:28,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 102.
[2021-11-13 18:25:28,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2875) internal successors, (103), 87 states have internal predecessors, (103), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13)
[2021-11-13 18:25:28,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions.
[2021-11-13 18:25:28,037 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 40
[2021-11-13 18:25:28,038 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:28,038 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions.
[2021-11-13 18:25:28,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:28,038 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions.
[2021-11-13 18:25:28,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:25:28,039 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:28,040 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:28,040 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-11-13 18:25:28,040 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:28,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:28,041 INFO L85 PathProgramCache]: Analyzing trace with hash 1252593274, now seen corresponding path program 1 times
[2021-11-13 18:25:28,041 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:28,041 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866529176]
[2021-11-13 18:25:28,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:28,041 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:28,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26
[2021-11-13 18:25:28,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31
[2021-11-13 18:25:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:28,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:28,135 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866529176]
[2021-11-13 18:25:28,136 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866529176] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:28,136 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:28,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 18:25:28,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081043441]
[2021-11-13 18:25:28,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:28,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:25:28,138 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:28,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:25:28,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:25:28,139 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:28,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:28,332 INFO L93 Difference]: Finished difference Result 292 states and 376 transitions.
[2021-11-13 18:25:28,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 18:25:28,333 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 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 40
[2021-11-13 18:25:28,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:28,340 INFO L225 Difference]: With dead ends: 292
[2021-11-13 18:25:28,340 INFO L226 Difference]: Without dead ends: 197
[2021-11-13 18:25:28,341 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2021-11-13 18:25:28,343 INFO L933 BasicCegarLoop]: 82 mSDtfsCounter, 43 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 108.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 371 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.03ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 133.13ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:28,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [46 Valid, 371 Invalid, 44 Unknown, 0 Unchecked, 6.03ms Time], IncrementalHoareTripleChecker [4 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 133.13ms Time]
[2021-11-13 18:25:28,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2021-11-13 18:25:28,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191.
[2021-11-13 18:25:28,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 148 states have (on average 1.2702702702702702) internal successors, (188), 161 states have internal predecessors, (188), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28)
[2021-11-13 18:25:28,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 238 transitions.
[2021-11-13 18:25:28,402 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 238 transitions. Word has length 40
[2021-11-13 18:25:28,402 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:28,402 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 238 transitions.
[2021-11-13 18:25:28,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:28,403 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 238 transitions.
[2021-11-13 18:25:28,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2021-11-13 18:25:28,407 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:28,407 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:28,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-11-13 18:25:28,408 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:28,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:28,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1511884254, now seen corresponding path program 1 times
[2021-11-13 18:25:28,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:28,409 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965192018]
[2021-11-13 18:25:28,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:28,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:28,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2021-11-13 18:25:28,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,507 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2021-11-13 18:25:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35
[2021-11-13 18:25:28,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:28,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:28,515 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:28,515 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965192018]
[2021-11-13 18:25:28,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965192018] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:28,516 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:28,516 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 18:25:28,516 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128201528]
[2021-11-13 18:25:28,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:28,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:25:28,517 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:28,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:25:28,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:25:28,517 INFO L87 Difference]: Start difference. First operand 191 states and 238 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:25:28,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:28,854 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions.
[2021-11-13 18:25:28,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 18:25:28,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 44
[2021-11-13 18:25:28,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:28,860 INFO L225 Difference]: With dead ends: 199
[2021-11-13 18:25:28,860 INFO L226 Difference]: Without dead ends: 197
[2021-11-13 18:25:28,861 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:25:28,865 INFO L933 BasicCegarLoop]: 86 mSDtfsCounter, 85 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 228.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 190 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.29ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 275.93ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:28,865 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 217 Invalid, 190 Unknown, 0 Unchecked, 4.29ms Time], IncrementalHoareTripleChecker [24 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 275.93ms Time]
[2021-11-13 18:25:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2021-11-13 18:25:28,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191.
[2021-11-13 18:25:28,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 148 states have (on average 1.2635135135135136) internal successors, (187), 161 states have internal predecessors, (187), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28)
[2021-11-13 18:25:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions.
[2021-11-13 18:25:28,901 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 44
[2021-11-13 18:25:28,902 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:28,902 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions.
[2021-11-13 18:25:28,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 5 states have internal predecessors, (37), 1 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3)
[2021-11-13 18:25:28,902 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions.
[2021-11-13 18:25:28,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2021-11-13 18:25:28,904 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:28,904 INFO L514 BasicCegarLoop]: trace histogram [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]
[2021-11-13 18:25:28,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-11-13 18:25:28,905 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:28,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:28,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1017405715, now seen corresponding path program 1 times
[2021-11-13 18:25:28,907 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:28,907 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506817280]
[2021-11-13 18:25:28,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:28,907 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:28,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2021-11-13 18:25:29,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2021-11-13 18:25:29,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2021-11-13 18:25:29,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 18:25:29,045 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:29,045 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506817280]
[2021-11-13 18:25:29,045 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506817280] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:29,045 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:29,046 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6
[2021-11-13 18:25:29,046 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788862641]
[2021-11-13 18:25:29,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:29,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:25:29,048 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:29,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:25:29,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:25:29,049 INFO L87 Difference]: Start difference. First operand 191 states and 237 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-11-13 18:25:29,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:29,384 INFO L93 Difference]: Finished difference Result 419 states and 533 transitions.
[2021-11-13 18:25:29,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:25:29,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50
[2021-11-13 18:25:29,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:29,392 INFO L225 Difference]: With dead ends: 419
[2021-11-13 18:25:29,392 INFO L226 Difference]: Without dead ends: 235
[2021-11-13 18:25:29,393 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2021-11-13 18:25:29,393 INFO L933 BasicCegarLoop]: 84 mSDtfsCounter, 82 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 221.83ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.76ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 267.57ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:29,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 208 Invalid, 193 Unknown, 0 Unchecked, 4.76ms Time], IncrementalHoareTripleChecker [22 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 267.57ms Time]
[2021-11-13 18:25:29,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states.
[2021-11-13 18:25:29,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 197.
[2021-11-13 18:25:29,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 154 states have (on average 1.2532467532467533) internal successors, (193), 167 states have internal predecessors, (193), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28)
[2021-11-13 18:25:29,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 243 transitions.
[2021-11-13 18:25:29,415 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 243 transitions. Word has length 50
[2021-11-13 18:25:29,415 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:29,415 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 243 transitions.
[2021-11-13 18:25:29,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-11-13 18:25:29,416 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 243 transitions.
[2021-11-13 18:25:29,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2021-11-13 18:25:29,417 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:29,417 INFO L514 BasicCegarLoop]: trace histogram [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]
[2021-11-13 18:25:29,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-11-13 18:25:29,417 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:29,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:29,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1089379607, now seen corresponding path program 1 times
[2021-11-13 18:25:29,418 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:29,418 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613518683]
[2021-11-13 18:25:29,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:29,418 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:29,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13
[2021-11-13 18:25:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30
[2021-11-13 18:25:29,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41
[2021-11-13 18:25:29,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,508 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 18:25:29,509 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:29,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613518683]
[2021-11-13 18:25:29,509 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1613518683] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:29,509 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:29,509 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-11-13 18:25:29,509 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773414774]
[2021-11-13 18:25:29,509 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:29,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:25:29,510 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:29,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:25:29,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:29,510 INFO L87 Difference]: Start difference. First operand 197 states and 243 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-11-13 18:25:29,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:29,723 INFO L93 Difference]: Finished difference Result 469 states and 584 transitions.
[2021-11-13 18:25:29,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:25:29,723 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 50
[2021-11-13 18:25:29,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:29,725 INFO L225 Difference]: With dead ends: 469
[2021-11-13 18:25:29,725 INFO L226 Difference]: Without dead ends: 279
[2021-11-13 18:25:29,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:25:29,727 INFO L933 BasicCegarLoop]: 73 mSDtfsCounter, 85 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 140.32ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.80ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 180.17ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:29,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [89 Valid, 122 Invalid, 87 Unknown, 0 Unchecked, 1.80ms Time], IncrementalHoareTripleChecker [22 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 180.17ms Time]
[2021-11-13 18:25:29,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states.
[2021-11-13 18:25:29,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 279.
[2021-11-13 18:25:29,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 218 states have (on average 1.224770642201835) internal successors, (267), 233 states have internal predecessors, (267), 32 states have call successors, (32), 30 states have call predecessors, (32), 28 states have return successors, (39), 30 states have call predecessors, (39), 32 states have call successors, (39)
[2021-11-13 18:25:29,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 338 transitions.
[2021-11-13 18:25:29,751 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 338 transitions. Word has length 50
[2021-11-13 18:25:29,751 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:29,751 INFO L470 AbstractCegarLoop]: Abstraction has 279 states and 338 transitions.
[2021-11-13 18:25:29,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)
[2021-11-13 18:25:29,751 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 338 transitions.
[2021-11-13 18:25:29,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2021-11-13 18:25:29,753 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:29,753 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:25:29,753 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-11-13 18:25:29,753 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:29,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:29,754 INFO L85 PathProgramCache]: Analyzing trace with hash -743952113, now seen corresponding path program 1 times
[2021-11-13 18:25:29,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:29,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750194886]
[2021-11-13 18:25:29,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:29,754 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:29,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11
[2021-11-13 18:25:29,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17
[2021-11-13 18:25:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34
[2021-11-13 18:25:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45
[2021-11-13 18:25:29,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:29,884 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 18:25:29,885 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-11-13 18:25:29,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750194886]
[2021-11-13 18:25:29,885 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750194886] provided 0 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:25:29,885 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870779898]
[2021-11-13 18:25:29,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:29,894 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-11-13 18:25:29,894 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:25:29,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
[2021-11-13 18:25:29,906 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process
[2021-11-13 18:25:30,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:30,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 424 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 18:25:30,110 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:30,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:30,528 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect
[2021-11-13 18:25:30,529 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870779898] provided 1 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:30,529 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-13 18:25:30,529 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14
[2021-11-13 18:25:30,529 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397360215]
[2021-11-13 18:25:30,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:30,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 18:25:30,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-11-13 18:25:30,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 18:25:30,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182
[2021-11-13 18:25:30,534 INFO L87 Difference]: Start difference. First operand 279 states and 338 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-11-13 18:25:30,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:30,883 INFO L93 Difference]: Finished difference Result 559 states and 681 transitions.
[2021-11-13 18:25:30,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:25:30,884 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54
[2021-11-13 18:25:30,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:30,889 INFO L225 Difference]: With dead ends: 559
[2021-11-13 18:25:30,889 INFO L226 Difference]: Without dead ends: 287
[2021-11-13 18:25:30,890 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272
[2021-11-13 18:25:30,892 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 71 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 220.45ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.64ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 260.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:30,893 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 741 Invalid, 61 Unknown, 0 Unchecked, 6.64ms Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 260.00ms Time]
[2021-11-13 18:25:30,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states.
[2021-11-13 18:25:30,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 277.
[2021-11-13 18:25:30,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 216 states have (on average 1.2083333333333333) internal successors, (261), 230 states have internal predecessors, (261), 32 states have call successors, (32), 30 states have call predecessors, (32), 28 states have return successors, (35), 30 states have call predecessors, (35), 32 states have call successors, (35)
[2021-11-13 18:25:30,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 328 transitions.
[2021-11-13 18:25:30,923 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 328 transitions. Word has length 54
[2021-11-13 18:25:30,924 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:30,924 INFO L470 AbstractCegarLoop]: Abstraction has 277 states and 328 transitions.
[2021-11-13 18:25:30,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-11-13 18:25:30,924 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 328 transitions.
[2021-11-13 18:25:30,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-11-13 18:25:30,926 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:30,927 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1]
[2021-11-13 18:25:30,975 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:31,154 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9
[2021-11-13 18:25:31,155 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:31,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:31,155 INFO L85 PathProgramCache]: Analyzing trace with hash -159739820, now seen corresponding path program 1 times
[2021-11-13 18:25:31,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-11-13 18:25:31,156 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767323685]
[2021-11-13 18:25:31,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:31,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2021-11-13 18:25:31,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:25:31,247 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:25:31,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:25:31,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace
[2021-11-13 18:25:31,415 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 18:25:31,417 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 18:25:31,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-11-13 18:25:31,423 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:25:31,428 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 18:25:31,525 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.NullPointerException
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2021-11-13 18:25:31,528 INFO L158 Benchmark]: Toolchain (without parser) took 6713.19ms. Allocated memory was 109.1MB in the beginning and 169.9MB in the end (delta: 60.8MB). Free memory was 65.7MB in the beginning and 65.1MB in the end (delta: 538.3kB). Peak memory consumption was 60.1MB. Max. memory is 16.1GB.
[2021-11-13 18:25:31,529 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:25:31,529 INFO L158 Benchmark]: CACSL2BoogieTranslator took 569.81ms. Allocated memory is still 109.1MB. Free memory was 65.5MB in the beginning and 75.9MB in the end (delta: -10.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB.
[2021-11-13 18:25:31,530 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.00ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 73.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:25:31,531 INFO L158 Benchmark]: Boogie Preprocessor took 42.34ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 71.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:25:31,531 INFO L158 Benchmark]: RCFGBuilder took 1007.42ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 71.5MB in the beginning and 107.1MB in the end (delta: -35.6MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB.
[2021-11-13 18:25:31,532 INFO L158 Benchmark]: TraceAbstraction took 5021.01ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 106.6MB in the beginning and 65.1MB in the end (delta: 41.4MB). Peak memory consumption was 72.9MB. Max. memory is 16.1GB.
[2021-11-13 18:25:31,535 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.36ms. Allocated memory is still 109.1MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 569.81ms. Allocated memory is still 109.1MB. Free memory was 65.5MB in the beginning and 75.9MB in the end (delta: -10.5MB). Peak memory consumption was 8.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 65.00ms. Allocated memory is still 109.1MB. Free memory was 75.9MB in the beginning and 73.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 42.34ms. Allocated memory is still 109.1MB. Free memory was 73.4MB in the beginning and 71.5MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 1007.42ms. Allocated memory was 109.1MB in the beginning and 138.4MB in the end (delta: 29.4MB). Free memory was 71.5MB in the beginning and 107.1MB in the end (delta: -35.6MB). Peak memory consumption was 41.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 5021.01ms. Allocated memory was 138.4MB in the beginning and 169.9MB in the end (delta: 31.5MB). Free memory was 106.6MB in the beginning and 65.1MB in the end (delta: 41.4MB). Peak memory consumption was 72.9MB. 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
- ExceptionOrErrorResult: NullPointerException: null
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2021-11-13 18:25:31,604 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/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
Using bit-precise analysis
Retrying with bit-precise analysis
### Bit-precise run ###
Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y --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 f8aef606697b9aeff574acbbe43b28a142b9105524bb5bbab5e1458056090146
--- Real Ultimate output ---
This is Ultimate 0.2.1-dev-63182f1
[2021-11-13 18:25:34,460 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-11-13 18:25:34,465 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-11-13 18:25:34,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-11-13 18:25:34,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-11-13 18:25:34,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-11-13 18:25:34,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-11-13 18:25:34,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-11-13 18:25:34,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-11-13 18:25:34,556 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-11-13 18:25:34,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-11-13 18:25:34,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-11-13 18:25:34,561 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-11-13 18:25:34,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-11-13 18:25:34,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-11-13 18:25:34,575 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-11-13 18:25:34,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-11-13 18:25:34,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-11-13 18:25:34,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-11-13 18:25:34,590 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-11-13 18:25:34,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-11-13 18:25:34,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-11-13 18:25:34,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-11-13 18:25:34,601 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-11-13 18:25:34,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-11-13 18:25:34,613 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-11-13 18:25:34,613 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-11-13 18:25:34,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-11-13 18:25:34,617 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-11-13 18:25:34,618 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-11-13 18:25:34,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-11-13 18:25:34,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-11-13 18:25:34,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-11-13 18:25:34,624 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-11-13 18:25:34,626 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-11-13 18:25:34,626 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-11-13 18:25:34,628 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-11-13 18:25:34,628 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-11-13 18:25:34,628 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-11-13 18:25:34,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-11-13 18:25:34,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-11-13 18:25:34,633 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/config/svcomp-Reach-32bit-Automizer_Bitvector.epf
[2021-11-13 18:25:34,684 INFO L113 SettingsManager]: Loading preferences was successful
[2021-11-13 18:25:34,684 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-11-13 18:25:34,685 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-11-13 18:25:34,686 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-11-13 18:25:34,687 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2021-11-13 18:25:34,687 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2021-11-13 18:25:34,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-11-13 18:25:34,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-11-13 18:25:34,689 INFO L138 SettingsManager]: * Use SBE=true
[2021-11-13 18:25:34,690 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-11-13 18:25:34,691 INFO L138 SettingsManager]: * sizeof long=4
[2021-11-13 18:25:34,692 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-11-13 18:25:34,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-11-13 18:25:34,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-11-13 18:25:34,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-11-13 18:25:34,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-11-13 18:25:34,693 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true
[2021-11-13 18:25:34,694 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution
[2021-11-13 18:25:34,694 INFO L138 SettingsManager]: * sizeof long double=12
[2021-11-13 18:25:34,694 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-11-13 18:25:34,694 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-11-13 18:25:34,695 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-11-13 18:25:34,695 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-11-13 18:25:34,695 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-11-13 18:25:34,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-11-13 18:25:34,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:25:34,696 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-11-13 18:25:34,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-11-13 18:25:34,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-11-13 18:25:34,697 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF
[2021-11-13 18:25:34,698 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt
[2021-11-13 18:25:34,698 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-11-13 18:25:34,698 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET
[2021-11-13 18:25:34,699 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-11-13 18:25:34,699 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE
[2021-11-13 18:25:34,699 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
[2021-11-13 18:25:34,699 INFO L138 SettingsManager]: * Logic for external solver=AUFBV
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_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) )
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit
Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f8aef606697b9aeff574acbbe43b28a142b9105524bb5bbab5e1458056090146
[2021-11-13 18:25:35,228 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-11-13 18:25:35,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-11-13 18:25:35,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-11-13 18:25:35,276 INFO L271 PluginConnector]: Initializing CDTParser...
[2021-11-13 18:25:35,277 INFO L275 PluginConnector]: CDTParser initialized
[2021-11-13 18:25:35,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c
[2021-11-13 18:25:35,377 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/5df3d846b/6c24b5173f274d4ea901be79d64d0966/FLAG93bb84830
[2021-11-13 18:25:36,052 INFO L306 CDTParser]: Found 1 translation units.
[2021-11-13 18:25:36,052 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c
[2021-11-13 18:25:36,066 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/5df3d846b/6c24b5173f274d4ea901be79d64d0966/FLAG93bb84830
[2021-11-13 18:25:36,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/data/5df3d846b/6c24b5173f274d4ea901be79d64d0966
[2021-11-13 18:25:36,340 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-11-13 18:25:36,342 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements.
[2021-11-13 18:25:36,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator----------------------------
[2021-11-13 18:25:36,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator...
[2021-11-13 18:25:36,355 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized
[2021-11-13 18:25:36,356 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:36" (1/1) ...
[2021-11-13 18:25:36,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f53dba4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:36, skipping insertion in model container
[2021-11-13 18:25:36,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:25:36" (1/1) ...
[2021-11-13 18:25:36,368 INFO L145 MainTranslator]: Starting translation in SV-COMP mode
[2021-11-13 18:25:36,427 INFO L178 MainTranslator]: Built tables and reachable declarations
[2021-11-13 18:25:36,852 WARN L228 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_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15994,16007]
[2021-11-13 18:25:36,884 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:25:36,913 INFO L203 MainTranslator]: Completed pre-run
[2021-11-13 18:25:37,046 WARN L228 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_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15994,16007]
[2021-11-13 18:25:37,063 INFO L206 PostProcessor]: Analyzing one entry point: main
[2021-11-13 18:25:37,092 INFO L208 MainTranslator]: Completed translation
[2021-11-13 18:25:37,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37 WrapperNode
[2021-11-13 18:25:37,093 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator----------------------------
[2021-11-13 18:25:37,095 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-11-13 18:25:37,095 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-11-13 18:25:37,095 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-11-13 18:25:37,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,138 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-11-13 18:25:37,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-11-13 18:25:37,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-11-13 18:25:37,196 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-11-13 18:25:37,207 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,208 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,238 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,262 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-11-13 18:25:37,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-11-13 18:25:37,267 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-11-13 18:25:37,267 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-11-13 18:25:37,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (1/1) ...
[2021-11-13 18:25:37,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-11-13 18:25:37,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3
[2021-11-13 18:25:37,321 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:37,339 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process
[2021-11-13 18:25:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack
[2021-11-13 18:25:37,382 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base
[2021-11-13 18:25:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base
[2021-11-13 18:25:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup
[2021-11-13 18:25:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup
[2021-11-13 18:25:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift
[2021-11-13 18:25:37,383 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift
[2021-11-13 18:25:37,383 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical
[2021-11-13 18:25:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical
[2021-11-13 18:25:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise
[2021-11-13 18:25:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise
[2021-11-13 18:25:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1
[2021-11-13 18:25:37,384 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel
[2021-11-13 18:25:37,384 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel
[2021-11-13 18:25:37,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-11-13 18:25:37,385 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-11-13 18:25:39,890 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-11-13 18:25:39,891 INFO L299 CfgBuilder]: Removed 2 assume(true) statements.
[2021-11-13 18:25:39,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:39 BoogieIcfgContainer
[2021-11-13 18:25:39,893 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-11-13 18:25:39,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-11-13 18:25:39,898 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-11-13 18:25:39,902 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-11-13 18:25:39,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 06:25:36" (1/3) ...
[2021-11-13 18:25:39,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee1e848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:25:39, skipping insertion in model container
[2021-11-13 18:25:39,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:25:37" (2/3) ...
[2021-11-13 18:25:39,904 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ee1e848 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 06:25:39, skipping insertion in model container
[2021-11-13 18:25:39,904 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:25:39" (3/3) ...
[2021-11-13 18:25:39,906 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product42.cil.c
[2021-11-13 18:25:39,913 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-11-13 18:25:39,913 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-11-13 18:25:39,993 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2021-11-13 18:25:40,002 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR
[2021-11-13 18:25:40,002 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations.
[2021-11-13 18:25:40,048 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10)
[2021-11-13 18:25:40,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24
[2021-11-13 18:25:40,059 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:40,059 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:40,061 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:40,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:40,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1535333319, now seen corresponding path program 1 times
[2021-11-13 18:25:40,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:40,090 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [571990263]
[2021-11-13 18:25:40,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:40,091 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:40,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:40,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:40,106 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process
[2021-11-13 18:25:40,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:40,418 INFO L263 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 1 conjunts are in the unsatisfiable core
[2021-11-13 18:25:40,424 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:40,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:40,585 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:40,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:40,695 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:40,696 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [571990263]
[2021-11-13 18:25:40,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [571990263] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:40,698 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:40,698 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2
[2021-11-13 18:25:40,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032969009]
[2021-11-13 18:25:40,702 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:40,709 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states
[2021-11-13 18:25:40,710 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:40,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants.
[2021-11-13 18:25:40,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 18:25:40,759 INFO L87 Difference]: Start difference. First operand has 80 states, 62 states have (on average 1.3870967741935485) internal successors, (86), 68 states have internal predecessors, (86), 10 states have call successors, (10), 6 states have call predecessors, (10), 6 states have return successors, (10), 9 states have call predecessors, (10), 10 states have call successors, (10) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:40,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:40,820 INFO L93 Difference]: Finished difference Result 152 states and 207 transitions.
[2021-11-13 18:25:40,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2021-11-13 18:25:40,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 23
[2021-11-13 18:25:40,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:40,843 INFO L225 Difference]: With dead ends: 152
[2021-11-13 18:25:40,843 INFO L226 Difference]: Without dead ends: 71
[2021-11-13 18:25:40,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2
[2021-11-13 18:25:40,854 INFO L933 BasicCegarLoop]: 100 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:40,856 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 4.12ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time]
[2021-11-13 18:25:40,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states.
[2021-11-13 18:25:40,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71.
[2021-11-13 18:25:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.309090909090909) internal successors, (72), 60 states have internal predecessors, (72), 10 states have call successors, (10), 6 states have call predecessors, (10), 5 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9)
[2021-11-13 18:25:40,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 91 transitions.
[2021-11-13 18:25:40,934 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 91 transitions. Word has length 23
[2021-11-13 18:25:40,934 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:40,934 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 91 transitions.
[2021-11-13 18:25:40,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 91 transitions.
[2021-11-13 18:25:40,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25
[2021-11-13 18:25:40,938 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:40,938 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:40,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:41,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:41,153 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:41,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:41,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1879035650, now seen corresponding path program 1 times
[2021-11-13 18:25:41,155 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:41,155 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1979293079]
[2021-11-13 18:25:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:41,156 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:41,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:41,157 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:41,163 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process
[2021-11-13 18:25:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:41,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:25:41,386 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:41,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:41,519 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:41,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:41,594 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:41,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1979293079]
[2021-11-13 18:25:41,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1979293079] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:41,595 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:41,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:25:41,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374598691]
[2021-11-13 18:25:41,596 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:41,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:25:41,598 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:41,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:25:41,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:41,599 INFO L87 Difference]: Start difference. First operand 71 states and 91 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:41,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:41,628 INFO L93 Difference]: Finished difference Result 107 states and 137 transitions.
[2021-11-13 18:25:41,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:25:41,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 24
[2021-11-13 18:25:41,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:41,630 INFO L225 Difference]: With dead ends: 107
[2021-11-13 18:25:41,631 INFO L226 Difference]: Without dead ends: 62
[2021-11-13 18:25:41,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:41,633 INFO L933 BasicCegarLoop]: 78 mSDtfsCounter, 26 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.54ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.40ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.08ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:41,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [29 Valid, 139 Invalid, 4 Unknown, 0 Unchecked, 2.40ms Time], IncrementalHoareTripleChecker [3 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 9.08ms Time]
[2021-11-13 18:25:41,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2021-11-13 18:25:41,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2021-11-13 18:25:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3265306122448979) internal successors, (65), 54 states have internal predecessors, (65), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7)
[2021-11-13 18:25:41,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions.
[2021-11-13 18:25:41,645 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 24
[2021-11-13 18:25:41,645 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:41,646 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions.
[2021-11-13 18:25:41,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:41,646 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions.
[2021-11-13 18:25:41,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-11-13 18:25:41,648 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:41,648 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:41,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:41,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:41,862 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:41,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:41,863 INFO L85 PathProgramCache]: Analyzing trace with hash -110528575, now seen corresponding path program 1 times
[2021-11-13 18:25:41,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:41,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [168322887]
[2021-11-13 18:25:41,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:41,864 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:41,864 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:41,867 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:41,874 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process
[2021-11-13 18:25:42,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:42,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 2 conjunts are in the unsatisfiable core
[2021-11-13 18:25:42,092 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:42,187 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:42,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:42,287 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:42,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [168322887]
[2021-11-13 18:25:42,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [168322887] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:42,288 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:42,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4
[2021-11-13 18:25:42,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943485587]
[2021-11-13 18:25:42,293 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:42,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:25:42,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:42,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:25:42,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:42,296 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:42,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:42,359 INFO L93 Difference]: Finished difference Result 117 states and 152 transitions.
[2021-11-13 18:25:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:25:42,362 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29
[2021-11-13 18:25:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:42,366 INFO L225 Difference]: With dead ends: 117
[2021-11-13 18:25:42,366 INFO L226 Difference]: Without dead ends: 62
[2021-11-13 18:25:42,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:42,375 INFO L933 BasicCegarLoop]: 77 mSDtfsCounter, 73 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 31.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.72ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 36.33ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:42,376 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 77 Invalid, 2 Unknown, 0 Unchecked, 2.72ms Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 36.33ms Time]
[2021-11-13 18:25:42,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states.
[2021-11-13 18:25:42,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 62.
[2021-11-13 18:25:42,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 49 states have (on average 1.3061224489795917) internal successors, (64), 54 states have internal predecessors, (64), 7 states have call successors, (7), 5 states have call predecessors, (7), 5 states have return successors, (7), 6 states have call predecessors, (7), 7 states have call successors, (7)
[2021-11-13 18:25:42,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 78 transitions.
[2021-11-13 18:25:42,395 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 78 transitions. Word has length 29
[2021-11-13 18:25:42,395 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:42,396 INFO L470 AbstractCegarLoop]: Abstraction has 62 states and 78 transitions.
[2021-11-13 18:25:42,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 3 states have call successors, (4), 4 states have call predecessors, (4), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2)
[2021-11-13 18:25:42,396 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 78 transitions.
[2021-11-13 18:25:42,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35
[2021-11-13 18:25:42,398 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:42,398 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:42,412 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:42,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:42,603 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:42,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:42,604 INFO L85 PathProgramCache]: Analyzing trace with hash -1402592638, now seen corresponding path program 1 times
[2021-11-13 18:25:42,604 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:42,605 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [893646817]
[2021-11-13 18:25:42,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:42,605 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:42,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:42,606 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:42,640 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process
[2021-11-13 18:25:42,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:42,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:25:42,819 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:42,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:42,967 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:43,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:43,099 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:43,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [893646817]
[2021-11-13 18:25:43,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [893646817] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:43,099 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:43,100 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 3
[2021-11-13 18:25:43,100 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197177652]
[2021-11-13 18:25:43,100 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:43,101 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2021-11-13 18:25:43,101 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:43,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-11-13 18:25:43,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:43,102 INFO L87 Difference]: Start difference. First operand 62 states and 78 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2021-11-13 18:25:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:43,146 INFO L93 Difference]: Finished difference Result 157 states and 201 transitions.
[2021-11-13 18:25:43,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-11-13 18:25:43,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 34
[2021-11-13 18:25:43,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:43,149 INFO L225 Difference]: With dead ends: 157
[2021-11-13 18:25:43,149 INFO L226 Difference]: Without dead ends: 102
[2021-11-13 18:25:43,150 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-11-13 18:25:43,152 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 51 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.87ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.86ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 27.87ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:43,152 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [51 Valid, 140 Invalid, 10 Unknown, 0 Unchecked, 1.86ms Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 27.87ms Time]
[2021-11-13 18:25:43,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states.
[2021-11-13 18:25:43,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 100.
[2021-11-13 18:25:43,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 78 states have (on average 1.294871794871795) internal successors, (101), 85 states have internal predecessors, (101), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13)
[2021-11-13 18:25:43,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 125 transitions.
[2021-11-13 18:25:43,188 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 125 transitions. Word has length 34
[2021-11-13 18:25:43,189 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:43,189 INFO L470 AbstractCegarLoop]: Abstraction has 100 states and 125 transitions.
[2021-11-13 18:25:43,189 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2021-11-13 18:25:43,189 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 125 transitions.
[2021-11-13 18:25:43,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:25:43,191 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:43,191 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:43,234 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:43,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:43,423 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:43,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:43,424 INFO L85 PathProgramCache]: Analyzing trace with hash -741551432, now seen corresponding path program 1 times
[2021-11-13 18:25:43,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:43,425 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2110095714]
[2021-11-13 18:25:43,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:43,425 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:43,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:43,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:43,428 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process
[2021-11-13 18:25:43,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:43,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:25:43,632 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:43,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:43,747 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:43,873 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:43,873 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2110095714]
[2021-11-13 18:25:43,873 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2110095714] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:43,873 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:43,874 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6
[2021-11-13 18:25:43,874 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336518377]
[2021-11-13 18:25:43,874 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:43,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states
[2021-11-13 18:25:43,875 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:43,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-11-13 18:25:43,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30
[2021-11-13 18:25:43,876 INFO L87 Difference]: Start difference. First operand 100 states and 125 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2021-11-13 18:25:43,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:43,943 INFO L93 Difference]: Finished difference Result 261 states and 338 transitions.
[2021-11-13 18:25:43,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-11-13 18:25:43,944 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40
[2021-11-13 18:25:43,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:43,947 INFO L225 Difference]: With dead ends: 261
[2021-11-13 18:25:43,947 INFO L226 Difference]: Without dead ends: 168
[2021-11-13 18:25:43,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:25:43,950 INFO L933 BasicCegarLoop]: 92 mSDtfsCounter, 89 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.15ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.18ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.18ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:43,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [92 Valid, 340 Invalid, 25 Unknown, 0 Unchecked, 4.18ms Time], IncrementalHoareTripleChecker [10 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 29.18ms Time]
[2021-11-13 18:25:43,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states.
[2021-11-13 18:25:43,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 102.
[2021-11-13 18:25:43,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 80 states have (on average 1.2875) internal successors, (103), 87 states have internal predecessors, (103), 11 states have call successors, (11), 10 states have call predecessors, (11), 10 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13)
[2021-11-13 18:25:43,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 127 transitions.
[2021-11-13 18:25:43,992 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 127 transitions. Word has length 40
[2021-11-13 18:25:43,993 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:43,993 INFO L470 AbstractCegarLoop]: Abstraction has 102 states and 127 transitions.
[2021-11-13 18:25:43,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 6 states have internal predecessors, (41), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4)
[2021-11-13 18:25:43,993 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 127 transitions.
[2021-11-13 18:25:43,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41
[2021-11-13 18:25:43,995 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:43,995 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:44,012 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:44,212 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:44,212 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:44,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:44,213 INFO L85 PathProgramCache]: Analyzing trace with hash 1252593274, now seen corresponding path program 1 times
[2021-11-13 18:25:44,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:44,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [107989279]
[2021-11-13 18:25:44,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:44,215 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:44,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:44,216 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:44,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process
[2021-11-13 18:25:44,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:44,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 6 conjunts are in the unsatisfiable core
[2021-11-13 18:25:44,426 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:44,622 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:44,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:44,843 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:44,843 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [107989279]
[2021-11-13 18:25:44,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [107989279] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:44,843 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:44,843 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 6] imperfect sequences [] total 7
[2021-11-13 18:25:44,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723510962]
[2021-11-13 18:25:44,844 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:44,844 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 18:25:44,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:44,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 18:25:44,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:25:44,845 INFO L87 Difference]: Start difference. First operand 102 states and 127 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2021-11-13 18:25:46,197 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-13 18:25:46,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:46,361 INFO L93 Difference]: Finished difference Result 292 states and 376 transitions.
[2021-11-13 18:25:46,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-11-13 18:25:46,362 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4) Word has length 40
[2021-11-13 18:25:46,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:46,365 INFO L225 Difference]: With dead ends: 292
[2021-11-13 18:25:46,365 INFO L226 Difference]: Without dead ends: 197
[2021-11-13 18:25:46,366 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72
[2021-11-13 18:25:46,367 INFO L933 BasicCegarLoop]: 83 mSDtfsCounter, 41 mSDsluCounter, 289 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1421.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.47ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1453.23ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:46,368 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [44 Valid, 372 Invalid, 51 Unknown, 0 Unchecked, 4.47ms Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 1453.23ms Time]
[2021-11-13 18:25:46,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2021-11-13 18:25:46,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191.
[2021-11-13 18:25:46,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 148 states have (on average 1.2702702702702702) internal successors, (188), 161 states have internal predecessors, (188), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28)
[2021-11-13 18:25:46,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 238 transitions.
[2021-11-13 18:25:46,401 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 238 transitions. Word has length 40
[2021-11-13 18:25:46,401 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:46,401 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 238 transitions.
[2021-11-13 18:25:46,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 1 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (4), 2 states have call predecessors, (4), 1 states have call successors, (4)
[2021-11-13 18:25:46,402 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 238 transitions.
[2021-11-13 18:25:46,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45
[2021-11-13 18:25:46,404 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:46,404 INFO L514 BasicCegarLoop]: 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]
[2021-11-13 18:25:46,418 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:46,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:46,619 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:46,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:46,620 INFO L85 PathProgramCache]: Analyzing trace with hash 1511884254, now seen corresponding path program 1 times
[2021-11-13 18:25:46,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:46,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1913387682]
[2021-11-13 18:25:46,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:46,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:46,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:46,624 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:46,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process
[2021-11-13 18:25:46,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:46,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-11-13 18:25:46,844 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:47,051 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:47,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:47,222 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:47,222 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1913387682]
[2021-11-13 18:25:47,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1913387682] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:47,222 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:47,223 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 5] imperfect sequences [] total 5
[2021-11-13 18:25:47,223 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93069508]
[2021-11-13 18:25:47,223 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:47,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:25:47,224 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:47,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:25:47,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:25:47,225 INFO L87 Difference]: Start difference. First operand 191 states and 238 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2021-11-13 18:25:47,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:47,327 INFO L93 Difference]: Finished difference Result 199 states and 247 transitions.
[2021-11-13 18:25:47,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 18:25:47,336 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 44
[2021-11-13 18:25:47,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:47,339 INFO L225 Difference]: With dead ends: 199
[2021-11-13 18:25:47,340 INFO L226 Difference]: Without dead ends: 197
[2021-11-13 18:25:47,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:25:47,341 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 34 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 38.97ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.60ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 55.35ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:47,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 327 Invalid, 22 Unknown, 0 Unchecked, 2.60ms Time], IncrementalHoareTripleChecker [3 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 55.35ms Time]
[2021-11-13 18:25:47,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states.
[2021-11-13 18:25:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 191.
[2021-11-13 18:25:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 148 states have (on average 1.2635135135135136) internal successors, (187), 161 states have internal predecessors, (187), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28)
[2021-11-13 18:25:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions.
[2021-11-13 18:25:47,385 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 44
[2021-11-13 18:25:47,387 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:47,387 INFO L470 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions.
[2021-11-13 18:25:47,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6)
[2021-11-13 18:25:47,388 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions.
[2021-11-13 18:25:47,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2021-11-13 18:25:47,397 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:47,398 INFO L514 BasicCegarLoop]: trace histogram [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]
[2021-11-13 18:25:47,419 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:47,619 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:47,619 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:47,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:47,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1017405715, now seen corresponding path program 1 times
[2021-11-13 18:25:47,620 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:47,620 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [248690070]
[2021-11-13 18:25:47,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:47,621 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:47,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:47,625 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:47,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process
[2021-11-13 18:25:47,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:47,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-11-13 18:25:47,817 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 18:25:47,953 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:48,075 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 18:25:48,075 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:48,075 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [248690070]
[2021-11-13 18:25:48,075 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [248690070] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:48,076 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:48,076 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5
[2021-11-13 18:25:48,076 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110052945]
[2021-11-13 18:25:48,076 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:48,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states
[2021-11-13 18:25:48,077 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:48,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-11-13 18:25:48,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-11-13 18:25:48,078 INFO L87 Difference]: Start difference. First operand 191 states and 237 transitions. Second operand has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2021-11-13 18:25:48,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:48,160 INFO L93 Difference]: Finished difference Result 419 states and 533 transitions.
[2021-11-13 18:25:48,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-11-13 18:25:48,162 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 50
[2021-11-13 18:25:48,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:48,165 INFO L225 Difference]: With dead ends: 419
[2021-11-13 18:25:48,165 INFO L226 Difference]: Without dead ends: 235
[2021-11-13 18:25:48,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-11-13 18:25:48,167 INFO L933 BasicCegarLoop]: 97 mSDtfsCounter, 33 mSDsluCounter, 246 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 21.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.08ms SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.69ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:48,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 343 Invalid, 20 Unknown, 0 Unchecked, 2.08ms Time], IncrementalHoareTripleChecker [7 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 25.69ms Time]
[2021-11-13 18:25:48,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states.
[2021-11-13 18:25:48,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 197.
[2021-11-13 18:25:48,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 154 states have (on average 1.2532467532467533) internal successors, (193), 167 states have internal predecessors, (193), 22 states have call successors, (22), 20 states have call predecessors, (22), 20 states have return successors, (28), 22 states have call predecessors, (28), 22 states have call successors, (28)
[2021-11-13 18:25:48,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 243 transitions.
[2021-11-13 18:25:48,195 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 243 transitions. Word has length 50
[2021-11-13 18:25:48,196 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:48,196 INFO L470 AbstractCegarLoop]: Abstraction has 197 states and 243 transitions.
[2021-11-13 18:25:48,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.6) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)
[2021-11-13 18:25:48,196 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 243 transitions.
[2021-11-13 18:25:48,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51
[2021-11-13 18:25:48,198 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:48,198 INFO L514 BasicCegarLoop]: trace histogram [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]
[2021-11-13 18:25:48,218 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:48,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:48,418 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:48,418 INFO L85 PathProgramCache]: Analyzing trace with hash -1089379607, now seen corresponding path program 1 times
[2021-11-13 18:25:48,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:48,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [409481544]
[2021-11-13 18:25:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:48,419 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:48,419 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:48,420 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:48,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process
[2021-11-13 18:25:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:48,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 4 conjunts are in the unsatisfiable core
[2021-11-13 18:25:48,591 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:48,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 18:25:48,744 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked.
[2021-11-13 18:25:48,902 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:48,903 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [409481544]
[2021-11-13 18:25:48,903 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [409481544] provided 2 perfect and 0 imperfect interpolant sequences
[2021-11-13 18:25:48,903 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences.
[2021-11-13 18:25:48,903 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 3] imperfect sequences [] total 4
[2021-11-13 18:25:48,903 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758250865]
[2021-11-13 18:25:48,903 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:48,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states
[2021-11-13 18:25:48,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:48,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-11-13 18:25:48,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:48,905 INFO L87 Difference]: Start difference. First operand 197 states and 243 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2021-11-13 18:25:49,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:49,027 INFO L93 Difference]: Finished difference Result 623 states and 800 transitions.
[2021-11-13 18:25:49,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-11-13 18:25:49,030 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 50
[2021-11-13 18:25:49,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:49,034 INFO L225 Difference]: With dead ends: 623
[2021-11-13 18:25:49,035 INFO L226 Difference]: Without dead ends: 433
[2021-11-13 18:25:49,036 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-11-13 18:25:49,037 INFO L933 BasicCegarLoop]: 95 mSDtfsCounter, 72 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 45.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 246 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.43ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 57.94ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:49,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [72 Valid, 246 Invalid, 35 Unknown, 0 Unchecked, 2.43ms Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 57.94ms Time]
[2021-11-13 18:25:49,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2021-11-13 18:25:49,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 427.
[2021-11-13 18:25:49,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 332 states have (on average 1.2289156626506024) internal successors, (408), 351 states have internal predecessors, (408), 50 states have call successors, (50), 48 states have call predecessors, (50), 44 states have return successors, (67), 46 states have call predecessors, (67), 50 states have call successors, (67)
[2021-11-13 18:25:49,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 525 transitions.
[2021-11-13 18:25:49,085 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 525 transitions. Word has length 50
[2021-11-13 18:25:49,085 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:49,085 INFO L470 AbstractCegarLoop]: Abstraction has 427 states and 525 transitions.
[2021-11-13 18:25:49,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 3 states have call successors, (8), 4 states have call predecessors, (8), 3 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6)
[2021-11-13 18:25:49,086 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 525 transitions.
[2021-11-13 18:25:49,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55
[2021-11-13 18:25:49,088 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:49,088 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:25:49,102 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0
[2021-11-13 18:25:49,301 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:49,302 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:49,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:49,302 INFO L85 PathProgramCache]: Analyzing trace with hash -743952113, now seen corresponding path program 1 times
[2021-11-13 18:25:49,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:49,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2103958322]
[2021-11-13 18:25:49,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:49,304 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:49,304 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:49,306 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:49,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process
[2021-11-13 18:25:49,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-11-13 18:25:49,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjunts are in the unsatisfiable core
[2021-11-13 18:25:49,511 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-11-13 18:25:49,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-11-13 18:25:49,718 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2021-11-13 18:25:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-11-13 18:25:50,028 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace
[2021-11-13 18:25:50,028 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2103958322]
[2021-11-13 18:25:50,028 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2103958322] provided 1 perfect and 1 imperfect interpolant sequences
[2021-11-13 18:25:50,029 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences.
[2021-11-13 18:25:50,029 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12
[2021-11-13 18:25:50,029 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358882306]
[2021-11-13 18:25:50,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2021-11-13 18:25:50,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states
[2021-11-13 18:25:50,030 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF
[2021-11-13 18:25:50,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-11-13 18:25:50,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2021-11-13 18:25:50,031 INFO L87 Difference]: Start difference. First operand 427 states and 525 transitions. Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-11-13 18:25:51,706 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-13 18:25:53,418 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers []
[2021-11-13 18:25:53,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-11-13 18:25:53,651 INFO L93 Difference]: Finished difference Result 855 states and 1055 transitions.
[2021-11-13 18:25:53,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-11-13 18:25:53,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 54
[2021-11-13 18:25:53,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-11-13 18:25:53,657 INFO L225 Difference]: With dead ends: 855
[2021-11-13 18:25:53,657 INFO L226 Difference]: Without dead ends: 435
[2021-11-13 18:25:53,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210
[2021-11-13 18:25:53,660 INFO L933 BasicCegarLoop]: 145 mSDtfsCounter, 71 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3459.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.99ms SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3505.07ms IncrementalHoareTripleChecker+Time
[2021-11-13 18:25:53,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [73 Valid, 741 Invalid, 61 Unknown, 0 Unchecked, 10.99ms Time], IncrementalHoareTripleChecker [5 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 3505.07ms Time]
[2021-11-13 18:25:53,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states.
[2021-11-13 18:25:53,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 425.
[2021-11-13 18:25:53,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 330 states have (on average 1.2121212121212122) internal successors, (400), 348 states have internal predecessors, (400), 50 states have call successors, (50), 48 states have call predecessors, (50), 44 states have return successors, (61), 46 states have call predecessors, (61), 50 states have call successors, (61)
[2021-11-13 18:25:53,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 511 transitions.
[2021-11-13 18:25:53,705 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 511 transitions. Word has length 54
[2021-11-13 18:25:53,706 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-11-13 18:25:53,706 INFO L470 AbstractCegarLoop]: Abstraction has 425 states and 511 transitions.
[2021-11-13 18:25:53,706 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 3 states have call successors, (5), 3 states have call predecessors, (5), 4 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4)
[2021-11-13 18:25:53,706 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 511 transitions.
[2021-11-13 18:25:53,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84
[2021-11-13 18:25:53,709 INFO L506 BasicCegarLoop]: Found error trace
[2021-11-13 18:25:53,710 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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, 1]
[2021-11-13 18:25:53,724 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:53,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:53,923 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] ===
[2021-11-13 18:25:53,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-11-13 18:25:53,924 INFO L85 PathProgramCache]: Analyzing trace with hash -159739820, now seen corresponding path program 1 times
[2021-11-13 18:25:53,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF
[2021-11-13 18:25:53,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [998379814]
[2021-11-13 18:25:53,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-11-13 18:25:53,924 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3
[2021-11-13 18:25:53,925 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat
[2021-11-13 18:25:53,926 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null)
[2021-11-13 18:25:53,930 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process
[2021-11-13 18:25:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:25:55,287 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.
[2021-11-13 18:25:56,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat
[2021-11-13 18:25:56,842 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace
[2021-11-13 18:25:56,843 INFO L628 BasicCegarLoop]: Counterexample is feasible
[2021-11-13 18:25:56,843 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining)
[2021-11-13 18:25:56,869 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0
[2021-11-13 18:25:57,064 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/mathsat -unsat_core_generation=3
[2021-11-13 18:25:57,067 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-11-13 18:25:57,070 INFO L179 ceAbstractionStarter]: Computing trace abstraction results
[2021-11-13 18:25:57,152 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception:
java.lang.NullPointerException
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
at de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.translateProgramExecution(InlinerBacktranslator.java:203)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:216)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:225)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateProgramExecution(ModelTranslationContainer.java:206)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getProgramExecutionAsString(CounterExampleResult.java:155)
at de.uni_freiburg.informatik.ultimate.core.lib.results.CounterExampleResult.getLongDescription(CounterExampleResult.java:134)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:86)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResultReporter.reportResult(CegarLoopResultReporter.java:141)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportLocationResults(TraceAbstractionStarter.java:586)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:181)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.<init>(TraceAbstractionStarter.java:155)
at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320)
at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63)
[2021-11-13 18:25:57,155 INFO L158 Benchmark]: Toolchain (without parser) took 20812.33ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 48.8MB in the beginning and 73.7MB in the end (delta: -24.9MB). Peak memory consumption was 43.1MB. Max. memory is 16.1GB.
[2021-11-13 18:25:57,155 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory was 66.0MB in the beginning and 66.0MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB.
[2021-11-13 18:25:57,155 INFO L158 Benchmark]: CACSL2BoogieTranslator took 742.99ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 59.7MB in the end (delta: -11.1MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB.
[2021-11-13 18:25:57,156 INFO L158 Benchmark]: Boogie Procedure Inliner took 99.58ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:25:57,156 INFO L158 Benchmark]: Boogie Preprocessor took 70.87ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 55.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
[2021-11-13 18:25:57,156 INFO L158 Benchmark]: RCFGBuilder took 2626.61ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 55.1MB in the beginning and 85.4MB in the end (delta: -30.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB.
[2021-11-13 18:25:57,157 INFO L158 Benchmark]: TraceAbstraction took 17256.32ms. Allocated memory is still 104.9MB. Free memory was 84.8MB in the beginning and 73.7MB in the end (delta: 11.1MB). Peak memory consumption was 55.9MB. Max. memory is 16.1GB.
[2021-11-13 18:25:57,159 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* CDTParser took 0.39ms. Allocated memory is still 83.9MB. Free memory was 66.0MB in the beginning and 66.0MB in the end (delta: 75.1kB). There was no memory consumed. Max. memory is 16.1GB.
* CACSL2BoogieTranslator took 742.99ms. Allocated memory is still 83.9MB. Free memory was 48.6MB in the beginning and 59.7MB in the end (delta: -11.1MB). Peak memory consumption was 10.7MB. Max. memory is 16.1GB.
* Boogie Procedure Inliner took 99.58ms. Allocated memory is still 83.9MB. Free memory was 59.5MB in the beginning and 57.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* Boogie Preprocessor took 70.87ms. Allocated memory is still 83.9MB. Free memory was 57.1MB in the beginning and 55.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB.
* RCFGBuilder took 2626.61ms. Allocated memory was 83.9MB in the beginning and 104.9MB in the end (delta: 21.0MB). Free memory was 55.1MB in the beginning and 85.4MB in the end (delta: -30.3MB). Peak memory consumption was 26.4MB. Max. memory is 16.1GB.
* TraceAbstraction took 17256.32ms. Allocated memory is still 104.9MB. Free memory was 84.8MB in the beginning and 73.7MB in the end (delta: 11.1MB). Peak memory consumption was 55.9MB. 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
- ExceptionOrErrorResult: NullPointerException: null
de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: NullPointerException: null: de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator.computeCurrectProc(InlinerBacktranslator.java:230)
RESULT: Ultimate could not prove your program: Toolchain returned no result.
[2021-11-13 18:25:57,201 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fb246ce1-9cc0-469e-8d9b-b5f57a6f5a2c/bin/uautomizer-YU5uOKAj3y/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:
ERROR: ExceptionOrErrorResult: NullPointerException: null