./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem02_label39.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem02_label39.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R --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 1e4f61af9a0cb0797f7e34da0b07a857e7ae44f0a7943fff0d2a78c0cd17574b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:16:27,903 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:16:27,905 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:16:27,935 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:16:27,936 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:16:27,937 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:16:27,938 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:16:27,940 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:16:27,942 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:16:27,943 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:16:27,943 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:16:27,945 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:16:27,945 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:16:27,946 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:16:27,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:16:27,954 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:16:27,958 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:16:27,959 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:16:27,961 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:16:27,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:16:27,979 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:16:27,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:16:27,983 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:16:27,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:16:27,992 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:16:27,992 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:16:27,992 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:16:27,997 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:16:27,997 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:16:27,998 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:16:27,999 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:16:27,999 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:16:28,002 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:16:28,003 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:16:28,004 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:16:28,005 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:16:28,006 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:16:28,007 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:16:28,008 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:16:28,009 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:16:28,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:16:28,011 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 17:16:28,036 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:16:28,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:16:28,037 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:16:28,037 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:16:28,037 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:16:28,037 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:16:28,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:16:28,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:16:28,038 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:16:28,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:16:28,039 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:16:28,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:16:28,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:16:28,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:16:28,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:16:28,040 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:16:28,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:16:28,040 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:16:28,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:16:28,040 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:16:28,041 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:16:28,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:16:28,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:16:28,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:16:28,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:16:28,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:16:28,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:16:28,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:16:28,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:16:28,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:16:28,042 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:16:28,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:16:28,043 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:16:28,046 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:16:28,047 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1e4f61af9a0cb0797f7e34da0b07a857e7ae44f0a7943fff0d2a78c0cd17574b [2022-11-25 17:16:28,361 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:16:28,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:16:28,396 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:16:28,398 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:16:28,398 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:16:28,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/eca-rers2012/Problem02_label39.c [2022-11-25 17:16:31,579 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:16:31,917 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:16:31,918 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/sv-benchmarks/c/eca-rers2012/Problem02_label39.c [2022-11-25 17:16:31,929 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/data/f6b7e47ca/913bd0eb972b4b0aa7e961949c7babf3/FLAG56759ca73 [2022-11-25 17:16:31,945 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/data/f6b7e47ca/913bd0eb972b4b0aa7e961949c7babf3 [2022-11-25 17:16:31,948 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:16:31,950 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:16:31,951 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:16:31,951 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:16:31,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:16:31,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:16:31" (1/1) ... [2022-11-25 17:16:31,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3892169d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:31, skipping insertion in model container [2022-11-25 17:16:31,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:16:31" (1/1) ... [2022-11-25 17:16:31,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:16:32,007 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:16:32,378 WARN L237 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_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/sv-benchmarks/c/eca-rers2012/Problem02_label39.c[18036,18049] [2022-11-25 17:16:32,406 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:16:32,416 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:16:32,520 WARN L237 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_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/sv-benchmarks/c/eca-rers2012/Problem02_label39.c[18036,18049] [2022-11-25 17:16:32,532 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:16:32,546 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:16:32,547 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32 WrapperNode [2022-11-25 17:16:32,547 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:16:32,548 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:16:32,548 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:16:32,548 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:16:32,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,573 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,624 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 668 [2022-11-25 17:16:32,625 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:16:32,626 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:16:32,626 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:16:32,626 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:16:32,636 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,660 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,678 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:16:32,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:16:32,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:16:32,698 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:16:32,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (1/1) ... [2022-11-25 17:16:32,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:16:32,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:16:32,773 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:16:32,799 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:16:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:16:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:16:32,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:16:32,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:16:32,925 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:16:32,928 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:16:34,349 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:16:34,362 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:16:34,366 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:16:34,369 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:34 BoogieIcfgContainer [2022-11-25 17:16:34,370 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:16:34,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:16:34,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:16:34,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:16:34,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:16:31" (1/3) ... [2022-11-25 17:16:34,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d7f06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:16:34, skipping insertion in model container [2022-11-25 17:16:34,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:16:32" (2/3) ... [2022-11-25 17:16:34,386 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@37d7f06c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:16:34, skipping insertion in model container [2022-11-25 17:16:34,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:34" (3/3) ... [2022-11-25 17:16:34,394 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem02_label39.c [2022-11-25 17:16:34,417 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:16:34,418 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:16:34,494 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:16:34,503 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@f88a34c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:16:34,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:16:34,508 INFO L276 IsEmpty]: Start isEmpty. Operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:34,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-11-25 17:16:34,524 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:34,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:34,525 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:34,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:34,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1738135197, now seen corresponding path program 1 times [2022-11-25 17:16:34,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:34,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673709613] [2022-11-25 17:16:34,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:34,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:34,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:35,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:35,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:35,118 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673709613] [2022-11-25 17:16:35,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673709613] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:35,119 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:35,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:16:35,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917943153] [2022-11-25 17:16:35,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:35,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:35,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:35,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:35,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:35,164 INFO L87 Difference]: Start difference. First operand has 227 states, 225 states have (on average 1.6666666666666667) internal successors, (375), 226 states have internal predecessors, (375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:36,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:36,046 INFO L93 Difference]: Finished difference Result 630 states and 1070 transitions. [2022-11-25 17:16:36,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:36,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-11-25 17:16:36,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:36,071 INFO L225 Difference]: With dead ends: 630 [2022-11-25 17:16:36,072 INFO L226 Difference]: Without dead ends: 318 [2022-11-25 17:16:36,080 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:36,087 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 119 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 492 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 492 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:36,088 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 119 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 492 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:16:36,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-11-25 17:16:36,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 318. [2022-11-25 17:16:36,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 318 states, 317 states have (on average 1.473186119873817) internal successors, (467), 317 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:36,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 467 transitions. [2022-11-25 17:16:36,168 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 467 transitions. Word has length 111 [2022-11-25 17:16:36,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:36,171 INFO L495 AbstractCegarLoop]: Abstraction has 318 states and 467 transitions. [2022-11-25 17:16:36,172 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 2 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:36,172 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 467 transitions. [2022-11-25 17:16:36,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2022-11-25 17:16:36,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:36,180 INFO L195 NwaCegarLoop]: 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:36,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:16:36,181 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:36,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash -215551336, now seen corresponding path program 1 times [2022-11-25 17:16:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:36,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439525593] [2022-11-25 17:16:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:36,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:36,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:36,589 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:36,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:36,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439525593] [2022-11-25 17:16:36,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439525593] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:36,590 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:36,590 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:16:36,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242597572] [2022-11-25 17:16:36,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:36,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:36,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:36,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:36,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:36,594 INFO L87 Difference]: Start difference. First operand 318 states and 467 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:37,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:37,173 INFO L93 Difference]: Finished difference Result 919 states and 1357 transitions. [2022-11-25 17:16:37,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:37,174 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 115 [2022-11-25 17:16:37,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:37,180 INFO L225 Difference]: With dead ends: 919 [2022-11-25 17:16:37,180 INFO L226 Difference]: Without dead ends: 603 [2022-11-25 17:16:37,186 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:37,188 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 144 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 384 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 454 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 384 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:37,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 121 Invalid, 454 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 384 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:16:37,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states. [2022-11-25 17:16:37,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 601. [2022-11-25 17:16:37,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 601 states, 600 states have (on average 1.2933333333333332) internal successors, (776), 600 states have internal predecessors, (776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:37,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 776 transitions. [2022-11-25 17:16:37,224 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 776 transitions. Word has length 115 [2022-11-25 17:16:37,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:37,224 INFO L495 AbstractCegarLoop]: Abstraction has 601 states and 776 transitions. [2022-11-25 17:16:37,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 2 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:37,225 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 776 transitions. [2022-11-25 17:16:37,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-11-25 17:16:37,241 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:37,242 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:37,242 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:16:37,242 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:37,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:37,243 INFO L85 PathProgramCache]: Analyzing trace with hash -485950035, now seen corresponding path program 1 times [2022-11-25 17:16:37,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:37,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370968064] [2022-11-25 17:16:37,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:37,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:37,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:37,501 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:37,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370968064] [2022-11-25 17:16:37,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370968064] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:37,503 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:37,503 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:37,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012085675] [2022-11-25 17:16:37,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:37,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:37,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:37,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:37,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:37,507 INFO L87 Difference]: Start difference. First operand 601 states and 776 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:38,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:38,072 INFO L93 Difference]: Finished difference Result 1486 states and 1976 transitions. [2022-11-25 17:16:38,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:38,073 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2022-11-25 17:16:38,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:38,079 INFO L225 Difference]: With dead ends: 1486 [2022-11-25 17:16:38,079 INFO L226 Difference]: Without dead ends: 887 [2022-11-25 17:16:38,082 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:38,087 INFO L413 NwaCegarLoop]: 238 mSDtfsCounter, 144 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 255 SdHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:38,089 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 255 Invalid, 447 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:16:38,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2022-11-25 17:16:38,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 885. [2022-11-25 17:16:38,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 885 states, 884 states have (on average 1.2330316742081449) internal successors, (1090), 884 states have internal predecessors, (1090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:38,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 885 states to 885 states and 1090 transitions. [2022-11-25 17:16:38,130 INFO L78 Accepts]: Start accepts. Automaton has 885 states and 1090 transitions. Word has length 120 [2022-11-25 17:16:38,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:38,131 INFO L495 AbstractCegarLoop]: Abstraction has 885 states and 1090 transitions. [2022-11-25 17:16:38,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:38,131 INFO L276 IsEmpty]: Start isEmpty. Operand 885 states and 1090 transitions. [2022-11-25 17:16:38,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2022-11-25 17:16:38,134 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:38,134 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:38,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:16:38,135 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:38,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:38,135 INFO L85 PathProgramCache]: Analyzing trace with hash 63576167, now seen corresponding path program 1 times [2022-11-25 17:16:38,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:38,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104191853] [2022-11-25 17:16:38,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:38,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:38,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:38,237 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:38,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:38,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104191853] [2022-11-25 17:16:38,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104191853] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:38,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:38,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:16:38,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94339280] [2022-11-25 17:16:38,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:38,240 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:38,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:38,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:38,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:38,242 INFO L87 Difference]: Start difference. First operand 885 states and 1090 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:38,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:38,757 INFO L93 Difference]: Finished difference Result 2469 states and 3055 transitions. [2022-11-25 17:16:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:38,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2022-11-25 17:16:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:38,764 INFO L225 Difference]: With dead ends: 2469 [2022-11-25 17:16:38,765 INFO L226 Difference]: Without dead ends: 1586 [2022-11-25 17:16:38,766 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:38,773 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 190 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 348 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:38,775 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [190 Valid, 79 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 348 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:16:38,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1586 states. [2022-11-25 17:16:38,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1586 to 1586. [2022-11-25 17:16:38,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 1585 states have (on average 1.1962145110410094) internal successors, (1896), 1585 states have internal predecessors, (1896), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:38,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1896 transitions. [2022-11-25 17:16:38,818 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1896 transitions. Word has length 121 [2022-11-25 17:16:38,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:38,819 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 1896 transitions. [2022-11-25 17:16:38,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:38,819 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1896 transitions. [2022-11-25 17:16:38,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2022-11-25 17:16:38,828 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:38,828 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:38,828 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:16:38,828 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:38,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:38,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1699634295, now seen corresponding path program 1 times [2022-11-25 17:16:38,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:38,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666593692] [2022-11-25 17:16:38,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:38,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:38,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:39,026 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:39,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:39,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666593692] [2022-11-25 17:16:39,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666593692] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:39,027 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:39,027 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:39,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106683836] [2022-11-25 17:16:39,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:39,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:39,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:39,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:39,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:39,029 INFO L87 Difference]: Start difference. First operand 1586 states and 1896 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:39,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:39,517 INFO L93 Difference]: Finished difference Result 3731 states and 4458 transitions. [2022-11-25 17:16:39,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:39,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 124 [2022-11-25 17:16:39,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:39,524 INFO L225 Difference]: With dead ends: 3731 [2022-11-25 17:16:39,525 INFO L226 Difference]: Without dead ends: 2147 [2022-11-25 17:16:39,527 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:39,527 INFO L413 NwaCegarLoop]: 251 mSDtfsCounter, 143 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 379 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 379 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:39,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 270 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 379 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:16:39,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-11-25 17:16:39,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2146. [2022-11-25 17:16:39,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 2145 states have (on average 1.1566433566433567) internal successors, (2481), 2145 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:39,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 2481 transitions. [2022-11-25 17:16:39,593 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 2481 transitions. Word has length 124 [2022-11-25 17:16:39,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:39,594 INFO L495 AbstractCegarLoop]: Abstraction has 2146 states and 2481 transitions. [2022-11-25 17:16:39,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:39,594 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 2481 transitions. [2022-11-25 17:16:39,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2022-11-25 17:16:39,599 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:39,599 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:39,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:16:39,600 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:39,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:39,600 INFO L85 PathProgramCache]: Analyzing trace with hash -297769562, now seen corresponding path program 1 times [2022-11-25 17:16:39,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:39,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993647044] [2022-11-25 17:16:39,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:39,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:39,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:39,740 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:39,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:39,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993647044] [2022-11-25 17:16:39,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993647044] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:39,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:39,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:39,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628925593] [2022-11-25 17:16:39,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:39,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:39,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:39,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:39,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:39,743 INFO L87 Difference]: Start difference. First operand 2146 states and 2481 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:40,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:40,304 INFO L93 Difference]: Finished difference Result 4291 states and 4962 transitions. [2022-11-25 17:16:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:40,305 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2022-11-25 17:16:40,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:40,312 INFO L225 Difference]: With dead ends: 4291 [2022-11-25 17:16:40,312 INFO L226 Difference]: Without dead ends: 2147 [2022-11-25 17:16:40,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:40,319 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 162 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 351 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 351 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:40,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 52 Invalid, 417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 351 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:16:40,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2147 states. [2022-11-25 17:16:40,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2147 to 2146. [2022-11-25 17:16:40,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2146 states, 2145 states have (on average 1.131002331002331) internal successors, (2426), 2145 states have internal predecessors, (2426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:40,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2146 states to 2146 states and 2426 transitions. [2022-11-25 17:16:40,364 INFO L78 Accepts]: Start accepts. Automaton has 2146 states and 2426 transitions. Word has length 140 [2022-11-25 17:16:40,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:40,364 INFO L495 AbstractCegarLoop]: Abstraction has 2146 states and 2426 transitions. [2022-11-25 17:16:40,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:40,365 INFO L276 IsEmpty]: Start isEmpty. Operand 2146 states and 2426 transitions. [2022-11-25 17:16:40,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-25 17:16:40,368 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:40,369 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:40,369 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:16:40,369 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:40,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:40,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1227064464, now seen corresponding path program 1 times [2022-11-25 17:16:40,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:40,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282788570] [2022-11-25 17:16:40,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:40,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:40,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:40,474 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:40,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:40,474 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282788570] [2022-11-25 17:16:40,474 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282788570] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:40,475 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:40,475 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:40,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117283728] [2022-11-25 17:16:40,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:40,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:40,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:40,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:40,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:40,477 INFO L87 Difference]: Start difference. First operand 2146 states and 2426 transitions. Second operand has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:41,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:41,040 INFO L93 Difference]: Finished difference Result 4863 states and 5614 transitions. [2022-11-25 17:16:41,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:41,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2022-11-25 17:16:41,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:41,048 INFO L225 Difference]: With dead ends: 4863 [2022-11-25 17:16:41,049 INFO L226 Difference]: Without dead ends: 2719 [2022-11-25 17:16:41,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:41,052 INFO L413 NwaCegarLoop]: 231 mSDtfsCounter, 145 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:41,052 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 256 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-25 17:16:41,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2022-11-25 17:16:41,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2710. [2022-11-25 17:16:41,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2710 states, 2709 states have (on average 1.1432262827611666) internal successors, (3097), 2709 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:41,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2710 states to 2710 states and 3097 transitions. [2022-11-25 17:16:41,108 INFO L78 Accepts]: Start accepts. Automaton has 2710 states and 3097 transitions. Word has length 144 [2022-11-25 17:16:41,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:41,108 INFO L495 AbstractCegarLoop]: Abstraction has 2710 states and 3097 transitions. [2022-11-25 17:16:41,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:41,109 INFO L276 IsEmpty]: Start isEmpty. Operand 2710 states and 3097 transitions. [2022-11-25 17:16:41,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-11-25 17:16:41,114 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:41,114 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:41,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:16:41,115 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:41,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:41,115 INFO L85 PathProgramCache]: Analyzing trace with hash -627553387, now seen corresponding path program 1 times [2022-11-25 17:16:41,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:41,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830702810] [2022-11-25 17:16:41,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:41,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:41,438 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 17:16:41,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:41,439 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830702810] [2022-11-25 17:16:41,439 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830702810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:41,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:41,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:41,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773320422] [2022-11-25 17:16:41,440 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:41,440 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:16:41,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:41,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:16:41,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:16:41,441 INFO L87 Difference]: Start difference. First operand 2710 states and 3097 transitions. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:42,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:42,235 INFO L93 Difference]: Finished difference Result 6481 states and 7402 transitions. [2022-11-25 17:16:42,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:16:42,236 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-11-25 17:16:42,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:42,247 INFO L225 Difference]: With dead ends: 6481 [2022-11-25 17:16:42,247 INFO L226 Difference]: Without dead ends: 3690 [2022-11-25 17:16:42,250 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:16:42,252 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 141 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 669 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 754 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 669 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:42,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 117 Invalid, 754 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 669 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-25 17:16:42,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2022-11-25 17:16:42,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 2990. [2022-11-25 17:16:42,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2990 states, 2989 states have (on average 1.1398461023753763) internal successors, (3407), 2989 states have internal predecessors, (3407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:42,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2990 states to 2990 states and 3407 transitions. [2022-11-25 17:16:42,325 INFO L78 Accepts]: Start accepts. Automaton has 2990 states and 3407 transitions. Word has length 145 [2022-11-25 17:16:42,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:42,325 INFO L495 AbstractCegarLoop]: Abstraction has 2990 states and 3407 transitions. [2022-11-25 17:16:42,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:42,326 INFO L276 IsEmpty]: Start isEmpty. Operand 2990 states and 3407 transitions. [2022-11-25 17:16:42,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-25 17:16:42,330 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:42,332 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:42,333 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:16:42,333 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:42,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:42,333 INFO L85 PathProgramCache]: Analyzing trace with hash 212323633, now seen corresponding path program 1 times [2022-11-25 17:16:42,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:42,334 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769959029] [2022-11-25 17:16:42,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:42,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:42,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:42,494 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-11-25 17:16:42,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:42,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769959029] [2022-11-25 17:16:42,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769959029] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:42,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:42,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:42,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725041194] [2022-11-25 17:16:42,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:42,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:42,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:42,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:42,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:42,497 INFO L87 Difference]: Start difference. First operand 2990 states and 3407 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:42,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:42,991 INFO L93 Difference]: Finished difference Result 5540 states and 6328 transitions. [2022-11-25 17:16:42,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:42,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 175 [2022-11-25 17:16:42,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:42,998 INFO L225 Difference]: With dead ends: 5540 [2022-11-25 17:16:42,999 INFO L226 Difference]: Without dead ends: 2130 [2022-11-25 17:16:43,002 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:43,004 INFO L413 NwaCegarLoop]: 232 mSDtfsCounter, 121 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 346 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 346 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:43,005 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 252 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 346 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:16:43,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2130 states. [2022-11-25 17:16:43,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2130 to 1850. [2022-11-25 17:16:43,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1850 states, 1849 states have (on average 1.1011357490535425) internal successors, (2036), 1849 states have internal predecessors, (2036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1850 states to 1850 states and 2036 transitions. [2022-11-25 17:16:43,047 INFO L78 Accepts]: Start accepts. Automaton has 1850 states and 2036 transitions. Word has length 175 [2022-11-25 17:16:43,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:43,048 INFO L495 AbstractCegarLoop]: Abstraction has 1850 states and 2036 transitions. [2022-11-25 17:16:43,049 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:43,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1850 states and 2036 transitions. [2022-11-25 17:16:43,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-25 17:16:43,053 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:43,053 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:43,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:16:43,054 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:43,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:43,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1817254938, now seen corresponding path program 1 times [2022-11-25 17:16:43,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:43,055 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414207058] [2022-11-25 17:16:43,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:43,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:43,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:43,214 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 109 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-11-25 17:16:43,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:43,214 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414207058] [2022-11-25 17:16:43,215 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414207058] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:43,215 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:43,215 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:16:43,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037648145] [2022-11-25 17:16:43,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:43,216 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:43,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:43,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:43,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:43,221 INFO L87 Difference]: Start difference. First operand 1850 states and 2036 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:43,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:43,711 INFO L93 Difference]: Finished difference Result 4540 states and 5049 transitions. [2022-11-25 17:16:43,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:43,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 183 [2022-11-25 17:16:43,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:43,720 INFO L225 Difference]: With dead ends: 4540 [2022-11-25 17:16:43,720 INFO L226 Difference]: Without dead ends: 2552 [2022-11-25 17:16:43,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:16:43,724 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 139 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 212 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:43,725 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 212 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:16:43,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2552 states. [2022-11-25 17:16:43,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2552 to 2411. [2022-11-25 17:16:43,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2411 states, 2410 states have (on average 1.103734439834025) internal successors, (2660), 2410 states have internal predecessors, (2660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:43,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2411 states to 2411 states and 2660 transitions. [2022-11-25 17:16:43,819 INFO L78 Accepts]: Start accepts. Automaton has 2411 states and 2660 transitions. Word has length 183 [2022-11-25 17:16:43,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:43,820 INFO L495 AbstractCegarLoop]: Abstraction has 2411 states and 2660 transitions. [2022-11-25 17:16:43,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:43,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2411 states and 2660 transitions. [2022-11-25 17:16:43,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-25 17:16:43,825 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:43,826 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:43,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:16:43,826 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:43,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:43,827 INFO L85 PathProgramCache]: Analyzing trace with hash 2070776374, now seen corresponding path program 1 times [2022-11-25 17:16:43,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:43,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667031213] [2022-11-25 17:16:43,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:43,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:44,114 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 153 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:44,114 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:44,115 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667031213] [2022-11-25 17:16:44,115 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667031213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:44,115 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:44,115 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:16:44,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518605330] [2022-11-25 17:16:44,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:44,116 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:16:44,116 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:44,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:16:44,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:16:44,117 INFO L87 Difference]: Start difference. First operand 2411 states and 2660 transitions. Second operand has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:44,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:44,951 INFO L93 Difference]: Finished difference Result 5105 states and 5617 transitions. [2022-11-25 17:16:44,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 17:16:44,952 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 209 [2022-11-25 17:16:44,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:44,959 INFO L225 Difference]: With dead ends: 5105 [2022-11-25 17:16:44,960 INFO L226 Difference]: Without dead ends: 2275 [2022-11-25 17:16:44,962 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:16:44,965 INFO L413 NwaCegarLoop]: 216 mSDtfsCounter, 262 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 262 SdHoareTripleChecker+Valid, 259 SdHoareTripleChecker+Invalid, 768 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:44,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [262 Valid, 259 Invalid, 768 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-11-25 17:16:44,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2275 states. [2022-11-25 17:16:45,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2275 to 2130. [2022-11-25 17:16:45,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2130 states, 2129 states have (on average 1.0685767966181305) internal successors, (2275), 2129 states have internal predecessors, (2275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:45,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2130 states to 2130 states and 2275 transitions. [2022-11-25 17:16:45,014 INFO L78 Accepts]: Start accepts. Automaton has 2130 states and 2275 transitions. Word has length 209 [2022-11-25 17:16:45,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:45,015 INFO L495 AbstractCegarLoop]: Abstraction has 2130 states and 2275 transitions. [2022-11-25 17:16:45,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.25) internal successors, (209), 4 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:45,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2130 states and 2275 transitions. [2022-11-25 17:16:45,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2022-11-25 17:16:45,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:45,023 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:45,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:16:45,024 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:45,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:45,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1582426258, now seen corresponding path program 1 times [2022-11-25 17:16:45,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:45,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665190337] [2022-11-25 17:16:45,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:45,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:45,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:45,255 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 109 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:45,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:45,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665190337] [2022-11-25 17:16:45,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665190337] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:16:45,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035852020] [2022-11-25 17:16:45,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:45,257 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:16:45,257 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:16:45,263 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:16:45,293 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:16:45,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:45,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:16:45,453 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:16:45,740 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 108 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-11-25 17:16:45,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:16:45,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035852020] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:45,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:16:45,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-11-25 17:16:45,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190065369] [2022-11-25 17:16:45,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:45,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:45,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:45,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:45,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:16:45,743 INFO L87 Difference]: Start difference. First operand 2130 states and 2275 transitions. Second operand has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:46,190 INFO L93 Difference]: Finished difference Result 4818 states and 5151 transitions. [2022-11-25 17:16:46,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:46,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 215 [2022-11-25 17:16:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:46,196 INFO L225 Difference]: With dead ends: 4818 [2022-11-25 17:16:46,196 INFO L226 Difference]: Without dead ends: 1844 [2022-11-25 17:16:46,199 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:16:46,200 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 34 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 365 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:46,200 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 239 Invalid, 365 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:16:46,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2022-11-25 17:16:46,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1844. [2022-11-25 17:16:46,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1844 states, 1843 states have (on average 1.0520889853499729) internal successors, (1939), 1843 states have internal predecessors, (1939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:46,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1844 states to 1844 states and 1939 transitions. [2022-11-25 17:16:46,236 INFO L78 Accepts]: Start accepts. Automaton has 1844 states and 1939 transitions. Word has length 215 [2022-11-25 17:16:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:46,237 INFO L495 AbstractCegarLoop]: Abstraction has 1844 states and 1939 transitions. [2022-11-25 17:16:46,237 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 1844 states and 1939 transitions. [2022-11-25 17:16:46,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2022-11-25 17:16:46,242 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:46,242 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:46,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 17:16:46,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-25 17:16:46,448 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:46,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:46,449 INFO L85 PathProgramCache]: Analyzing trace with hash -2146398300, now seen corresponding path program 1 times [2022-11-25 17:16:46,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:46,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189540894] [2022-11-25 17:16:46,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:46,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,081 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 93 proven. 101 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:47,082 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:47,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189540894] [2022-11-25 17:16:47,082 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189540894] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:16:47,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1123934838] [2022-11-25 17:16:47,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:47,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:16:47,083 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:16:47,084 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:16:47,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 17:16:47,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:47,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:16:47,269 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:16:47,486 INFO L134 CoverageAnalysis]: Checked inductivity of 194 backedges. 138 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-11-25 17:16:47,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:16:47,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1123934838] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:47,487 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:16:47,487 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-11-25 17:16:47,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531769924] [2022-11-25 17:16:47,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:47,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:47,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:47,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:47,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:16:47,490 INFO L87 Difference]: Start difference. First operand 1844 states and 1939 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:47,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:47,923 INFO L93 Difference]: Finished difference Result 3258 states and 3439 transitions. [2022-11-25 17:16:47,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:47,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 241 [2022-11-25 17:16:47,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:47,928 INFO L225 Difference]: With dead ends: 3258 [2022-11-25 17:16:47,929 INFO L226 Difference]: Without dead ends: 1276 [2022-11-25 17:16:47,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 240 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:16:47,933 INFO L413 NwaCegarLoop]: 171 mSDtfsCounter, 46 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 302 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 302 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:47,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 179 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 302 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:16:47,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1276 states. [2022-11-25 17:16:47,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1276 to 1276. [2022-11-25 17:16:47,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1276 states, 1275 states have (on average 1.0392156862745099) internal successors, (1325), 1275 states have internal predecessors, (1325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:47,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1276 states to 1276 states and 1325 transitions. [2022-11-25 17:16:47,964 INFO L78 Accepts]: Start accepts. Automaton has 1276 states and 1325 transitions. Word has length 241 [2022-11-25 17:16:47,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:47,964 INFO L495 AbstractCegarLoop]: Abstraction has 1276 states and 1325 transitions. [2022-11-25 17:16:47,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:47,965 INFO L276 IsEmpty]: Start isEmpty. Operand 1276 states and 1325 transitions. [2022-11-25 17:16:47,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2022-11-25 17:16:47,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:47,970 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:47,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:16:48,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-25 17:16:48,176 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:48,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:48,177 INFO L85 PathProgramCache]: Analyzing trace with hash 995979598, now seen corresponding path program 1 times [2022-11-25 17:16:48,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:48,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886785194] [2022-11-25 17:16:48,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:48,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:48,527 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 242 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:16:48,528 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:48,528 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886785194] [2022-11-25 17:16:48,528 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886785194] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:48,528 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:16:48,529 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:16:48,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25261951] [2022-11-25 17:16:48,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:48,532 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:16:48,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:48,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:16:48,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:16:48,533 INFO L87 Difference]: Start difference. First operand 1276 states and 1325 transitions. Second operand has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:48,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:48,940 INFO L93 Difference]: Finished difference Result 2410 states and 2507 transitions. [2022-11-25 17:16:48,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:48,941 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 246 [2022-11-25 17:16:48,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:48,944 INFO L225 Difference]: With dead ends: 2410 [2022-11-25 17:16:48,944 INFO L226 Difference]: Without dead ends: 992 [2022-11-25 17:16:48,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:16:48,946 INFO L413 NwaCegarLoop]: 170 mSDtfsCounter, 213 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 295 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 295 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:48,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 186 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 295 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-25 17:16:48,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2022-11-25 17:16:48,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 991. [2022-11-25 17:16:48,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 991 states, 990 states have (on average 1.0232323232323233) internal successors, (1013), 990 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:48,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 991 states to 991 states and 1013 transitions. [2022-11-25 17:16:48,967 INFO L78 Accepts]: Start accepts. Automaton has 991 states and 1013 transitions. Word has length 246 [2022-11-25 17:16:48,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:48,967 INFO L495 AbstractCegarLoop]: Abstraction has 991 states and 1013 transitions. [2022-11-25 17:16:48,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.5) internal successors, (246), 4 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:48,968 INFO L276 IsEmpty]: Start isEmpty. Operand 991 states and 1013 transitions. [2022-11-25 17:16:48,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2022-11-25 17:16:48,973 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:16:48,974 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:48,974 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:16:48,974 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:16:48,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:16:48,975 INFO L85 PathProgramCache]: Analyzing trace with hash -2093190923, now seen corresponding path program 1 times [2022-11-25 17:16:48,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:16:48,975 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423710447] [2022-11-25 17:16:48,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:48,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:16:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 94 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-11-25 17:16:49,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:16:49,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423710447] [2022-11-25 17:16:49,764 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423710447] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:16:49,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1145238817] [2022-11-25 17:16:49,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:16:49,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:16:49,765 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:16:49,766 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:16:49,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-25 17:16:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:16:49,928 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 17:16:49,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:16:50,234 INFO L134 CoverageAnalysis]: Checked inductivity of 307 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 140 trivial. 0 not checked. [2022-11-25 17:16:50,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:16:50,235 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1145238817] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:16:50,235 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-25 17:16:50,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2022-11-25 17:16:50,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596323991] [2022-11-25 17:16:50,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:16:50,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:16:50,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:16:50,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:16:50,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:16:50,238 INFO L87 Difference]: Start difference. First operand 991 states and 1013 transitions. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:16:50,601 INFO L93 Difference]: Finished difference Result 1557 states and 1598 transitions. [2022-11-25 17:16:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:16:50,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 281 [2022-11-25 17:16:50,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:16:50,602 INFO L225 Difference]: With dead ends: 1557 [2022-11-25 17:16:50,602 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:16:50,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-25 17:16:50,606 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 75 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:16:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 37 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:16:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:16:50,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:16:50,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:50,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:16:50,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 281 [2022-11-25 17:16:50,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:16:50,607 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:16:50,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 2 states have internal predecessors, (189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:16:50,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:16:50,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:16:50,611 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:16:50,623 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:16:50,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-11-25 17:16:50,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 17:16:51,599 INFO L899 garLoopResultBuilder]: For program point L565-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,599 INFO L899 garLoopResultBuilder]: For program point L499-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,599 INFO L899 garLoopResultBuilder]: For program point L433-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L301(lines 301 423) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L235(lines 235 423) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L169(lines 169 423) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L566(line 566) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L500(line 500) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L434(line 434) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L303(lines 303 423) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L105(lines 105 423) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L568-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L502-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L436-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,600 INFO L899 garLoopResultBuilder]: For program point L40(lines 40 423) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L569(line 569) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L503(line 503) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L437(line 437) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L371(lines 371 423) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L571-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L505-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L439-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L307(lines 307 423) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L175(lines 175 423) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L109(lines 109 423) no Hoare annotation was computed. [2022-11-25 17:16:51,601 INFO L899 garLoopResultBuilder]: For program point L572(line 572) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L506(line 506) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L440(line 440) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L308(lines 308 317) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L242(lines 242 423) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L308-2(lines 308 317) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L45(lines 45 423) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L574-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L508-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L442-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L244(lines 244 423) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L575(line 575) no Hoare annotation was computed. [2022-11-25 17:16:51,602 INFO L899 garLoopResultBuilder]: For program point L509(line 509) no Hoare annotation was computed. [2022-11-25 17:16:51,603 INFO L899 garLoopResultBuilder]: For program point L443(line 443) no Hoare annotation was computed. [2022-11-25 17:16:51,603 INFO L899 garLoopResultBuilder]: For program point L179(lines 179 423) no Hoare annotation was computed. [2022-11-25 17:16:51,603 INFO L899 garLoopResultBuilder]: For program point L378(lines 378 423) no Hoare annotation was computed. [2022-11-25 17:16:51,605 INFO L899 garLoopResultBuilder]: For program point L48(lines 48 423) no Hoare annotation was computed. [2022-11-25 17:16:51,605 INFO L899 garLoopResultBuilder]: For program point L577-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,606 INFO L899 garLoopResultBuilder]: For program point L511-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,606 INFO L899 garLoopResultBuilder]: For program point L445-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,606 INFO L899 garLoopResultBuilder]: For program point L247(lines 247 423) no Hoare annotation was computed. [2022-11-25 17:16:51,606 INFO L899 garLoopResultBuilder]: For program point L578(line 578) no Hoare annotation was computed. [2022-11-25 17:16:51,606 INFO L899 garLoopResultBuilder]: For program point L512(line 512) no Hoare annotation was computed. [2022-11-25 17:16:51,606 INFO L899 garLoopResultBuilder]: For program point L446(line 446) no Hoare annotation was computed. [2022-11-25 17:16:51,607 INFO L899 garLoopResultBuilder]: For program point L248(lines 248 256) no Hoare annotation was computed. [2022-11-25 17:16:51,607 INFO L899 garLoopResultBuilder]: For program point L248-2(lines 248 256) no Hoare annotation was computed. [2022-11-25 17:16:51,607 INFO L899 garLoopResultBuilder]: For program point L116(lines 116 423) no Hoare annotation was computed. [2022-11-25 17:16:51,607 INFO L899 garLoopResultBuilder]: For program point L580-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,607 INFO L899 garLoopResultBuilder]: For program point L514-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,608 INFO L899 garLoopResultBuilder]: For program point L448-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,608 INFO L899 garLoopResultBuilder]: For program point L52(lines 52 423) no Hoare annotation was computed. [2022-11-25 17:16:51,608 INFO L899 garLoopResultBuilder]: For program point L581(line 581) no Hoare annotation was computed. [2022-11-25 17:16:51,608 INFO L899 garLoopResultBuilder]: For program point L515(line 515) no Hoare annotation was computed. [2022-11-25 17:16:51,608 INFO L899 garLoopResultBuilder]: For program point L449(line 449) no Hoare annotation was computed. [2022-11-25 17:16:51,609 INFO L899 garLoopResultBuilder]: For program point L185(lines 185 423) no Hoare annotation was computed. [2022-11-25 17:16:51,610 INFO L899 garLoopResultBuilder]: For program point L583-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,610 INFO L899 garLoopResultBuilder]: For program point L517-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,610 INFO L899 garLoopResultBuilder]: For program point L451-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,610 INFO L899 garLoopResultBuilder]: For program point L385(lines 385 423) no Hoare annotation was computed. [2022-11-25 17:16:51,610 INFO L899 garLoopResultBuilder]: For program point L319(lines 319 423) no Hoare annotation was computed. [2022-11-25 17:16:51,610 INFO L899 garLoopResultBuilder]: For program point L584(line 584) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L518(line 518) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L452(line 452) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L189(lines 189 423) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L123(lines 123 423) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L57(lines 57 423) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L586-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,611 INFO L899 garLoopResultBuilder]: For program point L520-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,612 INFO L899 garLoopResultBuilder]: For program point L454-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,612 INFO L899 garLoopResultBuilder]: For program point L388(lines 388 423) no Hoare annotation was computed. [2022-11-25 17:16:51,612 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 17:16:51,612 INFO L899 garLoopResultBuilder]: For program point L587(line 587) no Hoare annotation was computed. [2022-11-25 17:16:51,612 INFO L899 garLoopResultBuilder]: For program point L521(line 521) no Hoare annotation was computed. [2022-11-25 17:16:51,612 INFO L899 garLoopResultBuilder]: For program point L455(line 455) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L390(lines 390 423) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L324(lines 324 423) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L258(lines 258 423) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L60(lines 60 423) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L589-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L523-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,613 INFO L899 garLoopResultBuilder]: For program point L457-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,614 INFO L899 garLoopResultBuilder]: For program point L391(lines 391 397) no Hoare annotation was computed. [2022-11-25 17:16:51,614 INFO L899 garLoopResultBuilder]: For program point L325(lines 325 336) no Hoare annotation was computed. [2022-11-25 17:16:51,614 INFO L899 garLoopResultBuilder]: For program point L391-2(lines 391 397) no Hoare annotation was computed. [2022-11-25 17:16:51,614 INFO L899 garLoopResultBuilder]: For program point L325-2(lines 325 336) no Hoare annotation was computed. [2022-11-25 17:16:51,614 INFO L899 garLoopResultBuilder]: For program point L590(line 590) no Hoare annotation was computed. [2022-11-25 17:16:51,614 INFO L899 garLoopResultBuilder]: For program point L524(line 524) no Hoare annotation was computed. [2022-11-25 17:16:51,617 INFO L899 garLoopResultBuilder]: For program point L458(line 458) no Hoare annotation was computed. [2022-11-25 17:16:51,617 INFO L899 garLoopResultBuilder]: For program point L195(lines 195 423) no Hoare annotation was computed. [2022-11-25 17:16:51,617 INFO L899 garLoopResultBuilder]: For program point L129(lines 129 423) no Hoare annotation was computed. [2022-11-25 17:16:51,617 INFO L899 garLoopResultBuilder]: For program point L592-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,617 INFO L899 garLoopResultBuilder]: For program point L526-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,618 INFO L899 garLoopResultBuilder]: For program point L460-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,618 INFO L899 garLoopResultBuilder]: For program point L64(lines 64 423) no Hoare annotation was computed. [2022-11-25 17:16:51,618 INFO L899 garLoopResultBuilder]: For program point L593(line 593) no Hoare annotation was computed. [2022-11-25 17:16:51,618 INFO L899 garLoopResultBuilder]: For program point L527(line 527) no Hoare annotation was computed. [2022-11-25 17:16:51,618 INFO L899 garLoopResultBuilder]: For program point L461(line 461) no Hoare annotation was computed. [2022-11-25 17:16:51,618 INFO L899 garLoopResultBuilder]: For program point L263(lines 263 423) no Hoare annotation was computed. [2022-11-25 17:16:51,619 INFO L899 garLoopResultBuilder]: For program point L197(lines 197 423) no Hoare annotation was computed. [2022-11-25 17:16:51,619 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 17:16:51,619 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2022-11-25 17:16:51,619 INFO L899 garLoopResultBuilder]: For program point L595-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,619 INFO L899 garLoopResultBuilder]: For program point L529-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,619 INFO L899 garLoopResultBuilder]: For program point L463-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L199(lines 199 423) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L133(lines 133 423) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L596(line 596) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L530(line 530) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L464(line 464) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L399(lines 399 423) no Hoare annotation was computed. [2022-11-25 17:16:51,620 INFO L899 garLoopResultBuilder]: For program point L201(lines 201 423) no Hoare annotation was computed. [2022-11-25 17:16:51,621 INFO L899 garLoopResultBuilder]: For program point L69(lines 69 423) no Hoare annotation was computed. [2022-11-25 17:16:51,621 INFO L899 garLoopResultBuilder]: For program point L598-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,621 INFO L899 garLoopResultBuilder]: For program point L532-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,621 INFO L899 garLoopResultBuilder]: For program point L466-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,621 INFO L899 garLoopResultBuilder]: For program point L599(line 599) no Hoare annotation was computed. [2022-11-25 17:16:51,622 INFO L899 garLoopResultBuilder]: For program point L533(line 533) no Hoare annotation was computed. [2022-11-25 17:16:51,622 INFO L899 garLoopResultBuilder]: For program point L467(line 467) no Hoare annotation was computed. [2022-11-25 17:16:51,622 INFO L899 garLoopResultBuilder]: For program point L269(lines 269 423) no Hoare annotation was computed. [2022-11-25 17:16:51,622 INFO L899 garLoopResultBuilder]: For program point L204(lines 204 423) no Hoare annotation was computed. [2022-11-25 17:16:51,622 INFO L899 garLoopResultBuilder]: For program point L601-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,622 INFO L899 garLoopResultBuilder]: For program point L535-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L469-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L271(lines 271 423) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L602(line 602) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L536(line 536) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L470(line 470) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L404(lines 404 423) no Hoare annotation was computed. [2022-11-25 17:16:51,623 INFO L899 garLoopResultBuilder]: For program point L338(lines 338 423) no Hoare annotation was computed. [2022-11-25 17:16:51,624 INFO L899 garLoopResultBuilder]: For program point L272(lines 272 284) no Hoare annotation was computed. [2022-11-25 17:16:51,624 INFO L899 garLoopResultBuilder]: For program point L272-2(lines 272 284) no Hoare annotation was computed. [2022-11-25 17:16:51,624 INFO L899 garLoopResultBuilder]: For program point L140(lines 140 423) no Hoare annotation was computed. [2022-11-25 17:16:51,624 INFO L899 garLoopResultBuilder]: For program point L75(lines 75 423) no Hoare annotation was computed. [2022-11-25 17:16:51,624 INFO L899 garLoopResultBuilder]: For program point L604-1(lines 604 606) no Hoare annotation was computed. [2022-11-25 17:16:51,624 INFO L899 garLoopResultBuilder]: For program point L538-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L472-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L208(lines 208 423) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L605(line 605) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L539(line 539) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L473(line 473) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L341(lines 341 423) no Hoare annotation was computed. [2022-11-25 17:16:51,625 INFO L899 garLoopResultBuilder]: For program point L408(lines 408 423) no Hoare annotation was computed. [2022-11-25 17:16:51,626 INFO L899 garLoopResultBuilder]: For program point L342(lines 342 345) no Hoare annotation was computed. [2022-11-25 17:16:51,626 INFO L899 garLoopResultBuilder]: For program point L342-2(lines 342 345) no Hoare annotation was computed. [2022-11-25 17:16:51,626 INFO L899 garLoopResultBuilder]: For program point L144(lines 144 423) no Hoare annotation was computed. [2022-11-25 17:16:51,628 INFO L895 garLoopResultBuilder]: At program point L607(lines 39 608) the Hoare annotation is: (let ((.cse3 (= ~a25~0 1))) (let ((.cse10 (<= ~a25~0 0)) (.cse7 (<= 10 ~a28~0)) (.cse12 (not .cse3)) (.cse11 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a11~0 0)) (.cse8 (= ~a17~0 8)) (.cse6 (<= 9 ~a28~0)) (.cse0 (= ~a11~0 1)) (.cse9 (= ~a21~0 1)) (.cse2 (<= ~a28~0 10)) (.cse5 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse4 .cse2) (and .cse7 .cse8 .cse9 .cse4 .cse2 .cse5) (and .cse6 .cse4 .cse2 .cse5 .cse10) (and .cse4 .cse2 .cse10 .cse11) (and .cse0 .cse2 .cse11) (and .cse7 .cse0 .cse2 .cse12) (and .cse8 (= ~a25~0 ~a11~0) .cse9 .cse4 .cse5 (<= ~a28~0 7)) (and (<= 11 ~a28~0) .cse0 .cse12 .cse5) (and .cse3 .cse4 .cse2 .cse11) (and .cse1 .cse4 .cse2 .cse5) (and .cse8 .cse6 .cse0 .cse9 .cse2 .cse5)))) [2022-11-25 17:16:51,629 INFO L899 garLoopResultBuilder]: For program point L541-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,629 INFO L899 garLoopResultBuilder]: For program point L475-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,629 INFO L899 garLoopResultBuilder]: For program point L79(lines 79 423) no Hoare annotation was computed. [2022-11-25 17:16:51,629 INFO L899 garLoopResultBuilder]: For program point L542(line 542) no Hoare annotation was computed. [2022-11-25 17:16:51,629 INFO L899 garLoopResultBuilder]: For program point L476(line 476) no Hoare annotation was computed. [2022-11-25 17:16:51,629 INFO L899 garLoopResultBuilder]: For program point L212(lines 212 423) no Hoare annotation was computed. [2022-11-25 17:16:51,630 INFO L899 garLoopResultBuilder]: For program point L213(lines 213 220) no Hoare annotation was computed. [2022-11-25 17:16:51,630 INFO L899 garLoopResultBuilder]: For program point L213-2(lines 213 220) no Hoare annotation was computed. [2022-11-25 17:16:51,630 INFO L902 garLoopResultBuilder]: At program point L610(lines 610 627) the Hoare annotation is: true [2022-11-25 17:16:51,630 INFO L899 garLoopResultBuilder]: For program point L544-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,630 INFO L899 garLoopResultBuilder]: For program point L478-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,630 INFO L899 garLoopResultBuilder]: For program point L412(lines 412 423) no Hoare annotation was computed. [2022-11-25 17:16:51,630 INFO L899 garLoopResultBuilder]: For program point L545(line 545) no Hoare annotation was computed. [2022-11-25 17:16:51,631 INFO L899 garLoopResultBuilder]: For program point L479(line 479) no Hoare annotation was computed. [2022-11-25 17:16:51,631 INFO L899 garLoopResultBuilder]: For program point L347(lines 347 423) no Hoare annotation was computed. [2022-11-25 17:16:51,631 INFO L899 garLoopResultBuilder]: For program point L149(lines 149 423) no Hoare annotation was computed. [2022-11-25 17:16:51,631 INFO L899 garLoopResultBuilder]: For program point L414(lines 414 423) no Hoare annotation was computed. [2022-11-25 17:16:51,631 INFO L899 garLoopResultBuilder]: For program point L348(lines 348 357) no Hoare annotation was computed. [2022-11-25 17:16:51,631 INFO L899 garLoopResultBuilder]: For program point L348-2(lines 348 357) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L84(lines 84 423) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L547-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L481-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L85(lines 85 90) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L85-2(lines 85 90) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L548(line 548) no Hoare annotation was computed. [2022-11-25 17:16:51,632 INFO L899 garLoopResultBuilder]: For program point L482(line 482) no Hoare annotation was computed. [2022-11-25 17:16:51,633 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 17:16:51,633 INFO L899 garLoopResultBuilder]: For program point L417(lines 417 423) no Hoare annotation was computed. [2022-11-25 17:16:51,633 INFO L899 garLoopResultBuilder]: For program point L153(lines 153 423) no Hoare annotation was computed. [2022-11-25 17:16:51,633 INFO L895 garLoopResultBuilder]: At program point L616-2(lines 616 626) the Hoare annotation is: (let ((.cse3 (= ~a25~0 1))) (let ((.cse10 (<= ~a25~0 0)) (.cse7 (<= 10 ~a28~0)) (.cse12 (not .cse3)) (.cse11 (<= ~a19~0 0)) (.cse1 (<= ~a17~0 7)) (.cse4 (= ~a11~0 0)) (.cse8 (= ~a17~0 8)) (.cse6 (<= 9 ~a28~0)) (.cse0 (= ~a11~0 1)) (.cse9 (= ~a21~0 1)) (.cse2 (<= ~a28~0 10)) (.cse5 (= ~a19~0 1))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse6 .cse1 .cse4 .cse2) (and .cse7 .cse8 .cse9 .cse4 .cse2 .cse5) (and .cse6 .cse4 .cse2 .cse5 .cse10) (and .cse4 .cse2 .cse10 .cse11) (and .cse0 .cse2 .cse11) (and .cse7 .cse0 .cse2 .cse12) (and .cse8 (= ~a25~0 ~a11~0) .cse9 .cse4 .cse5 (<= ~a28~0 7)) (and (<= 11 ~a28~0) .cse0 .cse12 .cse5) (and .cse3 .cse4 .cse2 .cse11) (and .cse1 .cse4 .cse2 .cse5) (and .cse8 .cse6 .cse0 .cse9 .cse2 .cse5)))) [2022-11-25 17:16:51,633 INFO L899 garLoopResultBuilder]: For program point L550-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L484-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L286(lines 286 423) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L551(line 551) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L485(line 485) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L419(lines 419 423) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L222(lines 222 423) no Hoare annotation was computed. [2022-11-25 17:16:51,634 INFO L899 garLoopResultBuilder]: For program point L553-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,635 INFO L899 garLoopResultBuilder]: For program point L487-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,635 INFO L899 garLoopResultBuilder]: For program point L554(line 554) no Hoare annotation was computed. [2022-11-25 17:16:51,635 INFO L899 garLoopResultBuilder]: For program point L488(line 488) no Hoare annotation was computed. [2022-11-25 17:16:51,635 INFO L899 garLoopResultBuilder]: For program point L290(lines 290 423) no Hoare annotation was computed. [2022-11-25 17:16:51,635 INFO L899 garLoopResultBuilder]: For program point L158(lines 158 423) no Hoare annotation was computed. [2022-11-25 17:16:51,635 INFO L899 garLoopResultBuilder]: For program point L92(lines 92 423) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L621(line 621) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L225(lines 225 423) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 99) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L556-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L490-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,636 INFO L899 garLoopResultBuilder]: For program point L424(lines 424 426) no Hoare annotation was computed. [2022-11-25 17:16:51,637 INFO L899 garLoopResultBuilder]: For program point L424-2(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,637 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 17:16:51,637 INFO L899 garLoopResultBuilder]: For program point L557(line 557) no Hoare annotation was computed. [2022-11-25 17:16:51,637 INFO L899 garLoopResultBuilder]: For program point L491(line 491) no Hoare annotation was computed. [2022-11-25 17:16:51,637 INFO L899 garLoopResultBuilder]: For program point L425(line 425) no Hoare annotation was computed. [2022-11-25 17:16:51,637 INFO L899 garLoopResultBuilder]: For program point L359(lines 359 423) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L293(lines 293 423) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L228(lines 228 423) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L559-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L493-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L427-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L560(line 560) no Hoare annotation was computed. [2022-11-25 17:16:51,638 INFO L899 garLoopResultBuilder]: For program point L494(line 494) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L428(line 428) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L296(lines 296 423) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L164(lines 164 423) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L562-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L496-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L430-1(lines 39 608) no Hoare annotation was computed. [2022-11-25 17:16:51,639 INFO L899 garLoopResultBuilder]: For program point L364(lines 364 423) no Hoare annotation was computed. [2022-11-25 17:16:51,640 INFO L899 garLoopResultBuilder]: For program point L563(line 563) no Hoare annotation was computed. [2022-11-25 17:16:51,640 INFO L899 garLoopResultBuilder]: For program point L497(line 497) no Hoare annotation was computed. [2022-11-25 17:16:51,640 INFO L899 garLoopResultBuilder]: For program point L431(line 431) no Hoare annotation was computed. [2022-11-25 17:16:51,640 INFO L899 garLoopResultBuilder]: For program point L233(lines 233 423) no Hoare annotation was computed. [2022-11-25 17:16:51,640 INFO L899 garLoopResultBuilder]: For program point L101(lines 101 423) no Hoare annotation was computed. [2022-11-25 17:16:51,643 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:16:51,645 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:16:51,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:16:51 BoogieIcfgContainer [2022-11-25 17:16:51,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:16:51,687 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:16:51,687 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:16:51,687 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:16:51,688 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:16:34" (3/4) ... [2022-11-25 17:16:51,692 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:16:51,718 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-11-25 17:16:51,719 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 17:16:51,720 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 17:16:51,721 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:16:51,842 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:16:51,843 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:16:51,843 INFO L158 Benchmark]: Toolchain (without parser) took 19894.02ms. Allocated memory was 163.6MB in the beginning and 343.9MB in the end (delta: 180.4MB). Free memory was 127.8MB in the beginning and 187.4MB in the end (delta: -59.7MB). Peak memory consumption was 121.6MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,844 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:16:51,845 INFO L158 Benchmark]: CACSL2BoogieTranslator took 596.23ms. Allocated memory is still 163.6MB. Free memory was 127.8MB in the beginning and 117.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,846 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.00ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 111.4MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,846 INFO L158 Benchmark]: Boogie Preprocessor took 70.92ms. Allocated memory is still 163.6MB. Free memory was 111.4MB in the beginning and 106.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,846 INFO L158 Benchmark]: RCFGBuilder took 1673.18ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 106.5MB in the beginning and 139.2MB in the end (delta: -32.7MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,847 INFO L158 Benchmark]: TraceAbstraction took 17311.49ms. Allocated memory was 197.1MB in the beginning and 343.9MB in the end (delta: 146.8MB). Free memory was 138.1MB in the beginning and 197.0MB in the end (delta: -58.9MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,847 INFO L158 Benchmark]: Witness Printer took 155.83ms. Allocated memory is still 343.9MB. Free memory was 197.0MB in the beginning and 187.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:16:51,853 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 127.9MB. Free memory is still 97.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 596.23ms. Allocated memory is still 163.6MB. Free memory was 127.8MB in the beginning and 117.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.00ms. Allocated memory is still 163.6MB. Free memory was 116.3MB in the beginning and 111.4MB in the end (delta: 4.9MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 70.92ms. Allocated memory is still 163.6MB. Free memory was 111.4MB in the beginning and 106.5MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1673.18ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 106.5MB in the beginning and 139.2MB in the end (delta: -32.7MB). Peak memory consumption was 63.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17311.49ms. Allocated memory was 197.1MB in the beginning and 343.9MB in the end (delta: 146.8MB). Free memory was 138.1MB in the beginning and 197.0MB in the end (delta: -58.9MB). Peak memory consumption was 86.9MB. Max. memory is 16.1GB. * Witness Printer took 155.83ms. Allocated memory is still 343.9MB. Free memory was 197.0MB in the beginning and 187.4MB in the end (delta: 9.6MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 515]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 227 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 15, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2078 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2078 mSDsluCounter, 2633 SdHoareTripleChecker+Invalid, 6.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 291 mSDsCounter, 895 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5927 IncrementalHoareTripleChecker+Invalid, 6822 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 895 mSolverCounterUnsat, 2342 mSDtfsCounter, 5927 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 783 GetRequests, 756 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2990occurred in iteration=8, InterpolantAutomatonStates: 47, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 15 MinimizatonAttempts, 1282 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 49 NumberOfFragments, 369 HoareAnnotationTreeSize, 3 FomulaSimplifications, 54 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 3 FomulaSimplificationsInter, 892 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 4.7s InterpolantComputationTime, 3307 NumberOfCodeBlocks, 3307 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3289 ConstructedInterpolants, 0 QuantifiedInterpolants, 11556 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1211 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 18 InterpolantComputations, 15 PerfectInterpolantSequences, 1816/2045 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 616]: Loop Invariant Derived loop invariant: (((((((((((((a11 == 1 && a17 <= 7) && a28 <= 10) || ((a25 == 1 && a11 == 0) && a19 == 1)) || (((9 <= a28 && a17 <= 7) && a11 == 0) && a28 <= 10)) || (((((10 <= a28 && a17 == 8) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1)) || ((((9 <= a28 && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((a11 == 0 && a28 <= 10) && a25 <= 0) && a19 <= 0)) || ((a11 == 1 && a28 <= 10) && a19 <= 0)) || (((10 <= a28 && a11 == 1) && a28 <= 10) && !(a25 == 1))) || (((((a17 == 8 && a25 == a11) && a21 == 1) && a11 == 0) && a19 == 1) && a28 <= 7)) || (((11 <= a28 && a11 == 1) && !(a25 == 1)) && a19 == 1)) || (((a25 == 1 && a11 == 0) && a28 <= 10) && a19 <= 0)) || (((a17 <= 7 && a11 == 0) && a28 <= 10) && a19 == 1)) || (((((a17 == 8 && 9 <= a28) && a11 == 1) && a21 == 1) && a28 <= 10) && a19 == 1) - InvariantResult [Line: 610]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: (((((((((((((a11 == 1 && a17 <= 7) && a28 <= 10) || ((a25 == 1 && a11 == 0) && a19 == 1)) || (((9 <= a28 && a17 <= 7) && a11 == 0) && a28 <= 10)) || (((((10 <= a28 && a17 == 8) && a21 == 1) && a11 == 0) && a28 <= 10) && a19 == 1)) || ((((9 <= a28 && a11 == 0) && a28 <= 10) && a19 == 1) && a25 <= 0)) || (((a11 == 0 && a28 <= 10) && a25 <= 0) && a19 <= 0)) || ((a11 == 1 && a28 <= 10) && a19 <= 0)) || (((10 <= a28 && a11 == 1) && a28 <= 10) && !(a25 == 1))) || (((((a17 == 8 && a25 == a11) && a21 == 1) && a11 == 0) && a19 == 1) && a28 <= 7)) || (((11 <= a28 && a11 == 1) && !(a25 == 1)) && a19 == 1)) || (((a25 == 1 && a11 == 0) && a28 <= 10) && a19 <= 0)) || (((a17 <= 7 && a11 == 0) && a28 <= 10) && a19 == 1)) || (((((a17 == 8 && 9 <= a28) && a11 == 1) && a21 == 1) && a28 <= 10) && a19 == 1) RESULT: Ultimate proved your program to be correct! [2022-11-25 17:16:51,896 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6bdf9a8-9753-4480-9cd3-e7da686b8bb6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE