./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/systemc/transmitter.15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/systemc/transmitter.15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 19:52:57,870 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:52:57,873 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:52:57,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:52:57,917 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:52:57,918 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:52:57,920 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:52:57,922 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:52:57,924 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:52:57,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:52:57,926 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:52:57,927 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:52:57,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:52:57,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:52:57,933 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:52:57,937 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:52:57,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:52:57,941 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:52:57,946 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:52:57,948 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:52:57,956 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:52:57,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:52:57,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:52:57,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:52:57,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:52:57,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:52:57,974 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:52:57,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:52:57,975 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:52:57,976 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:52:57,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:52:57,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:52:57,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:52:57,982 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:52:57,984 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:52:57,985 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:52:57,986 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:52:57,986 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:52:57,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:52:57,987 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:52:57,988 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:52:57,989 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-18 19:52:58,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:52:58,026 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:52:58,027 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:52:58,027 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:52:58,029 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:52:58,029 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:52:58,030 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:52:58,030 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:52:58,030 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:52:58,031 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:52:58,032 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 19:52:58,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:52:58,032 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 19:52:58,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:52:58,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:52:58,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:52:58,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:52:58,033 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 19:52:58,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:52:58,034 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:52:58,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:52:58,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:52:58,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:52:58,035 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:52:58,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:52:58,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:52:58,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:52:58,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:52:58,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:52:58,038 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:52:58,038 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:52:58,038 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:52:58,038 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:52:58,039 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 05397c7941b2acd95b1b6d02c6c64b476ab8b290a5b56301ff8db7ca1986067b [2022-11-18 19:52:58,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:52:58,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:52:58,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:52:58,330 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:52:58,331 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:52:58,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/systemc/transmitter.15.cil.c [2022-11-18 19:52:58,405 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/data/34f41b1fc/4a72f89f616245238a90a876155b5595/FLAG049d53819 [2022-11-18 19:52:58,981 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:52:58,982 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/sv-benchmarks/c/systemc/transmitter.15.cil.c [2022-11-18 19:52:59,002 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/data/34f41b1fc/4a72f89f616245238a90a876155b5595/FLAG049d53819 [2022-11-18 19:52:59,290 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/data/34f41b1fc/4a72f89f616245238a90a876155b5595 [2022-11-18 19:52:59,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:52:59,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:52:59,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:59,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:52:59,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:52:59,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,302 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dbd245 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59, skipping insertion in model container [2022-11-18 19:52:59,303 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,311 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:52:59,377 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:52:59,583 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/sv-benchmarks/c/systemc/transmitter.15.cil.c[706,719] [2022-11-18 19:52:59,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:59,768 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:52:59,781 WARN L234 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/sv-benchmarks/c/systemc/transmitter.15.cil.c[706,719] [2022-11-18 19:52:59,845 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:52:59,866 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:52:59,866 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59 WrapperNode [2022-11-18 19:52:59,866 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:52:59,867 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:59,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:52:59,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:52:59,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,960 INFO L138 Inliner]: procedures = 54, calls = 69, calls flagged for inlining = 38, calls inlined = 38, statements flattened = 891 [2022-11-18 19:52:59,960 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:52:59,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:52:59,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:52:59,962 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:52:59,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,979 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,983 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:52:59,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:53:00,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:53:00,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:53:00,032 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:53:00,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:53:00,054 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:53:00,055 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:53:00,055 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:53:00,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:53:00,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (1/1) ... [2022-11-18 19:53:00,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:53:00,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:53:00,095 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:53:00,127 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59162b56-c7ba-46da-93d4-0d7a8f20863f/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:53:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 19:53:00,141 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2022-11-18 19:53:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2022-11-18 19:53:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2022-11-18 19:53:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2022-11-18 19:53:00,142 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2022-11-18 19:53:00,142 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2022-11-18 19:53:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2022-11-18 19:53:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2022-11-18 19:53:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2022-11-18 19:53:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2022-11-18 19:53:00,143 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2022-11-18 19:53:00,143 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2022-11-18 19:53:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 19:53:00,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:53:00,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:53:00,265 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:53:00,267 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:53:01,384 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:53:01,403 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:53:01,405 INFO L300 CfgBuilder]: Removed 17 assume(true) statements. [2022-11-18 19:53:01,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:01 BoogieIcfgContainer [2022-11-18 19:53:01,409 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:53:01,412 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:53:01,412 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:53:01,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:53:01,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:52:59" (1/3) ... [2022-11-18 19:53:01,416 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f2c30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:01, skipping insertion in model container [2022-11-18 19:53:01,416 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:52:59" (2/3) ... [2022-11-18 19:53:01,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36f2c30e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:53:01, skipping insertion in model container [2022-11-18 19:53:01,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:53:01" (3/3) ... [2022-11-18 19:53:01,418 INFO L112 eAbstractionObserver]: Analyzing ICFG transmitter.15.cil.c [2022-11-18 19:53:01,439 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:53:01,439 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:53:01,506 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:53:01,514 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;@34160ce5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:53:01,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:53:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 402 states, 368 states have (on average 1.6684782608695652) internal successors, (614), 370 states have internal predecessors, (614), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-18 19:53:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:01,554 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:01,555 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:01,555 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:01,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:01,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1951726257, now seen corresponding path program 1 times [2022-11-18 19:53:01,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:01,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334655292] [2022-11-18 19:53:01,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:01,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:01,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:01,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:02,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:02,097 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:02,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:02,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:02,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:02,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:02,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:02,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:02,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:02,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:02,321 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334655292] [2022-11-18 19:53:02,321 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334655292] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:02,322 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:02,322 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:53:02,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716409770] [2022-11-18 19:53:02,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:02,330 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:53:02,330 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:02,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:53:02,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:02,362 INFO L87 Difference]: Start difference. First operand has 402 states, 368 states have (on average 1.6684782608695652) internal successors, (614), 370 states have internal predecessors, (614), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:05,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:05,255 INFO L93 Difference]: Finished difference Result 948 states and 1582 transitions. [2022-11-18 19:53:05,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:53:05,260 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:05,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:05,276 INFO L225 Difference]: With dead ends: 948 [2022-11-18 19:53:05,276 INFO L226 Difference]: Without dead ends: 548 [2022-11-18 19:53:05,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:53:05,286 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1098 mSDsluCounter, 419 mSDsCounter, 0 mSdLazyCounter, 1091 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1122 SdHoareTripleChecker+Valid, 781 SdHoareTripleChecker+Invalid, 1147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1091 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:05,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1122 Valid, 781 Invalid, 1147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 1091 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2022-11-18 19:53:05,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-18 19:53:05,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 397. [2022-11-18 19:53:05,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 364 states have (on average 1.5741758241758241) internal successors, (573), 365 states have internal predecessors, (573), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-18 19:53:05,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 625 transitions. [2022-11-18 19:53:05,442 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 625 transitions. Word has length 184 [2022-11-18 19:53:05,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:05,443 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 625 transitions. [2022-11-18 19:53:05,443 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 625 transitions. [2022-11-18 19:53:05,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:05,450 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:05,451 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:05,451 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:53:05,451 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:05,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:05,452 INFO L85 PathProgramCache]: Analyzing trace with hash 352577199, now seen corresponding path program 1 times [2022-11-18 19:53:05,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:05,453 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8612391] [2022-11-18 19:53:05,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:05,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:05,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:05,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:05,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:05,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:05,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8612391] [2022-11-18 19:53:05,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8612391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:05,753 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:05,753 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-18 19:53:05,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758432136] [2022-11-18 19:53:05,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:05,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 19:53:05,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:05,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 19:53:05,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 19:53:05,757 INFO L87 Difference]: Start difference. First operand 397 states and 625 transitions. Second operand has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:08,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:08,185 INFO L93 Difference]: Finished difference Result 931 states and 1486 transitions. [2022-11-18 19:53:08,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 19:53:08,186 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:08,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:08,191 INFO L225 Difference]: With dead ends: 931 [2022-11-18 19:53:08,191 INFO L226 Difference]: Without dead ends: 548 [2022-11-18 19:53:08,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:53:08,196 INFO L413 NwaCegarLoop]: 357 mSDtfsCounter, 1085 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1109 SdHoareTripleChecker+Valid, 767 SdHoareTripleChecker+Invalid, 1146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:08,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1109 Valid, 767 Invalid, 1146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2022-11-18 19:53:08,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2022-11-18 19:53:08,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 397. [2022-11-18 19:53:08,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 364 states have (on average 1.5714285714285714) internal successors, (572), 365 states have internal predecessors, (572), 26 states have call successors, (26), 6 states have call predecessors, (26), 6 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2022-11-18 19:53:08,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 624 transitions. [2022-11-18 19:53:08,282 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 624 transitions. Word has length 184 [2022-11-18 19:53:08,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:08,282 INFO L495 AbstractCegarLoop]: Abstraction has 397 states and 624 transitions. [2022-11-18 19:53:08,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 34.8) internal successors, (174), 3 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:08,283 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 624 transitions. [2022-11-18 19:53:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:08,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:08,288 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:08,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:53:08,288 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:08,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:08,289 INFO L85 PathProgramCache]: Analyzing trace with hash 262516909, now seen corresponding path program 1 times [2022-11-18 19:53:08,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:08,289 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961333055] [2022-11-18 19:53:08,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:08,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:08,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:08,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:08,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:08,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:08,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:08,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:08,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:08,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:08,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:08,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:08,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:08,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961333055] [2022-11-18 19:53:08,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961333055] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:08,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:08,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-18 19:53:08,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574273100] [2022-11-18 19:53:08,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:08,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-18 19:53:08,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:08,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-18 19:53:08,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-18 19:53:08,674 INFO L87 Difference]: Start difference. First operand 397 states and 624 transitions. Second operand has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:13,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:13,300 INFO L93 Difference]: Finished difference Result 1470 states and 2375 transitions. [2022-11-18 19:53:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:53:13,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:13,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:13,307 INFO L225 Difference]: With dead ends: 1470 [2022-11-18 19:53:13,307 INFO L226 Difference]: Without dead ends: 1094 [2022-11-18 19:53:13,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:53:13,311 INFO L413 NwaCegarLoop]: 362 mSDtfsCounter, 1648 mSDsluCounter, 992 mSDsCounter, 0 mSdLazyCounter, 2493 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1667 SdHoareTripleChecker+Valid, 1354 SdHoareTripleChecker+Invalid, 2602 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 2493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:13,311 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1667 Valid, 1354 Invalid, 2602 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [109 Valid, 2493 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2022-11-18 19:53:13,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1094 states. [2022-11-18 19:53:13,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1094 to 793. [2022-11-18 19:53:13,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 793 states, 732 states have (on average 1.5819672131147542) internal successors, (1158), 734 states have internal predecessors, (1158), 47 states have call successors, (47), 12 states have call predecessors, (47), 13 states have return successors, (50), 47 states have call predecessors, (50), 47 states have call successors, (50) [2022-11-18 19:53:13,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 793 states to 793 states and 1255 transitions. [2022-11-18 19:53:13,430 INFO L78 Accepts]: Start accepts. Automaton has 793 states and 1255 transitions. Word has length 184 [2022-11-18 19:53:13,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:13,430 INFO L495 AbstractCegarLoop]: Abstraction has 793 states and 1255 transitions. [2022-11-18 19:53:13,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.0) internal successors, (174), 4 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 793 states and 1255 transitions. [2022-11-18 19:53:13,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:13,434 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:13,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:13,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 19:53:13,434 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:13,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:13,435 INFO L85 PathProgramCache]: Analyzing trace with hash 1283386444, now seen corresponding path program 1 times [2022-11-18 19:53:13,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:13,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849134862] [2022-11-18 19:53:13,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:13,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:13,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:13,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:13,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:13,787 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:13,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:13,788 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849134862] [2022-11-18 19:53:13,788 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849134862] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:13,788 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:13,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:13,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611410040] [2022-11-18 19:53:13,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:13,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:13,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:13,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:13,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:13,791 INFO L87 Difference]: Start difference. First operand 793 states and 1255 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:20,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:20,482 INFO L93 Difference]: Finished difference Result 2626 states and 4208 transitions. [2022-11-18 19:53:20,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:20,487 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:20,496 INFO L225 Difference]: With dead ends: 2626 [2022-11-18 19:53:20,497 INFO L226 Difference]: Without dead ends: 1854 [2022-11-18 19:53:20,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:53:20,501 INFO L413 NwaCegarLoop]: 604 mSDtfsCounter, 1827 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4853 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1846 SdHoareTripleChecker+Valid, 2578 SdHoareTripleChecker+Invalid, 4918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 4853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:20,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1846 Valid, 2578 Invalid, 4918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 4853 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-18 19:53:20,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2022-11-18 19:53:20,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1161. [2022-11-18 19:53:20,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1161 states, 1072 states have (on average 1.5746268656716418) internal successors, (1688), 1075 states have internal predecessors, (1688), 68 states have call successors, (68), 18 states have call predecessors, (68), 20 states have return successors, (73), 69 states have call predecessors, (73), 68 states have call successors, (73) [2022-11-18 19:53:20,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1161 states to 1161 states and 1829 transitions. [2022-11-18 19:53:20,687 INFO L78 Accepts]: Start accepts. Automaton has 1161 states and 1829 transitions. Word has length 184 [2022-11-18 19:53:20,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:20,689 INFO L495 AbstractCegarLoop]: Abstraction has 1161 states and 1829 transitions. [2022-11-18 19:53:20,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:20,689 INFO L276 IsEmpty]: Start isEmpty. Operand 1161 states and 1829 transitions. [2022-11-18 19:53:20,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:20,697 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:20,698 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:20,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 19:53:20,698 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:20,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:20,700 INFO L85 PathProgramCache]: Analyzing trace with hash 497388554, now seen corresponding path program 1 times [2022-11-18 19:53:20,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:20,701 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359955122] [2022-11-18 19:53:20,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:20,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:20,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:20,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:20,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:21,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:21,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:21,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:21,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:21,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:21,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:21,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:21,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:21,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359955122] [2022-11-18 19:53:21,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359955122] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:21,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:21,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:21,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579750591] [2022-11-18 19:53:21,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:21,072 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:21,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:21,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:21,074 INFO L87 Difference]: Start difference. First operand 1161 states and 1829 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:27,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:27,932 INFO L93 Difference]: Finished difference Result 4047 states and 6476 transitions. [2022-11-18 19:53:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:27,933 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:27,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:27,948 INFO L225 Difference]: With dead ends: 4047 [2022-11-18 19:53:27,949 INFO L226 Difference]: Without dead ends: 2907 [2022-11-18 19:53:27,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:53:27,964 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1821 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1840 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 4899 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:27,965 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1840 Valid, 2576 Invalid, 4899 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2022-11-18 19:53:27,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2907 states. [2022-11-18 19:53:28,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2907 to 1901. [2022-11-18 19:53:28,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1901 states, 1756 states have (on average 1.5689066059225512) internal successors, (2755), 1761 states have internal predecessors, (2755), 110 states have call successors, (110), 30 states have call predecessors, (110), 34 states have return successors, (123), 113 states have call predecessors, (123), 110 states have call successors, (123) [2022-11-18 19:53:28,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1901 states to 1901 states and 2988 transitions. [2022-11-18 19:53:28,302 INFO L78 Accepts]: Start accepts. Automaton has 1901 states and 2988 transitions. Word has length 184 [2022-11-18 19:53:28,303 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:28,303 INFO L495 AbstractCegarLoop]: Abstraction has 1901 states and 2988 transitions. [2022-11-18 19:53:28,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:28,303 INFO L276 IsEmpty]: Start isEmpty. Operand 1901 states and 2988 transitions. [2022-11-18 19:53:28,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:28,306 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:28,306 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:28,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 19:53:28,307 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:28,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:28,307 INFO L85 PathProgramCache]: Analyzing trace with hash -1697840312, now seen corresponding path program 1 times [2022-11-18 19:53:28,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:28,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813605257] [2022-11-18 19:53:28,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:28,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:28,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:28,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:28,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:28,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:28,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:28,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:28,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:28,666 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813605257] [2022-11-18 19:53:28,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [813605257] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:28,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:28,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:28,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123998329] [2022-11-18 19:53:28,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:28,668 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:28,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:28,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:28,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:28,669 INFO L87 Difference]: Start difference. First operand 1901 states and 2988 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:35,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:35,584 INFO L93 Difference]: Finished difference Result 6787 states and 10819 transitions. [2022-11-18 19:53:35,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:35,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:35,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:35,610 INFO L225 Difference]: With dead ends: 6787 [2022-11-18 19:53:35,610 INFO L226 Difference]: Without dead ends: 4907 [2022-11-18 19:53:35,617 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:53:35,618 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1820 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4819 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1839 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 4886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:35,618 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1839 Valid, 2576 Invalid, 4886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4819 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-18 19:53:35,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4907 states. [2022-11-18 19:53:36,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4907 to 3382. [2022-11-18 19:53:36,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3382 states, 3125 states have (on average 1.56448) internal successors, (4889), 3134 states have internal predecessors, (4889), 194 states have call successors, (194), 54 states have call predecessors, (194), 62 states have return successors, (229), 201 states have call predecessors, (229), 194 states have call successors, (229) [2022-11-18 19:53:36,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3382 states to 3382 states and 5312 transitions. [2022-11-18 19:53:36,173 INFO L78 Accepts]: Start accepts. Automaton has 3382 states and 5312 transitions. Word has length 184 [2022-11-18 19:53:36,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:36,174 INFO L495 AbstractCegarLoop]: Abstraction has 3382 states and 5312 transitions. [2022-11-18 19:53:36,174 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:36,175 INFO L276 IsEmpty]: Start isEmpty. Operand 3382 states and 5312 transitions. [2022-11-18 19:53:36,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:36,179 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:36,179 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:36,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 19:53:36,179 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:36,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:36,180 INFO L85 PathProgramCache]: Analyzing trace with hash -1353012150, now seen corresponding path program 1 times [2022-11-18 19:53:36,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:36,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131615108] [2022-11-18 19:53:36,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:36,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:36,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:36,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:36,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:36,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:36,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:36,535 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131615108] [2022-11-18 19:53:36,536 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131615108] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:36,536 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:36,536 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:36,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656491478] [2022-11-18 19:53:36,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:36,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:36,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:36,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:36,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:36,538 INFO L87 Difference]: Start difference. First operand 3382 states and 5312 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:44,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:44,171 INFO L93 Difference]: Finished difference Result 12266 states and 19521 transitions. [2022-11-18 19:53:44,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:44,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:44,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:44,225 INFO L225 Difference]: With dead ends: 12266 [2022-11-18 19:53:44,226 INFO L226 Difference]: Without dead ends: 8905 [2022-11-18 19:53:44,240 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:53:44,241 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1819 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4806 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1838 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 4873 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:44,242 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1838 Valid, 2576 Invalid, 4873 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4806 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-18 19:53:44,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8905 states. [2022-11-18 19:53:45,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8905 to 6351. [2022-11-18 19:53:45,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6351 states, 5870 states have (on average 1.5616695059625212) internal successors, (9167), 5887 states have internal predecessors, (9167), 362 states have call successors, (362), 102 states have call predecessors, (362), 118 states have return successors, (459), 377 states have call predecessors, (459), 362 states have call successors, (459) [2022-11-18 19:53:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6351 states to 6351 states and 9988 transitions. [2022-11-18 19:53:45,283 INFO L78 Accepts]: Start accepts. Automaton has 6351 states and 9988 transitions. Word has length 184 [2022-11-18 19:53:45,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:45,283 INFO L495 AbstractCegarLoop]: Abstraction has 6351 states and 9988 transitions. [2022-11-18 19:53:45,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:45,284 INFO L276 IsEmpty]: Start isEmpty. Operand 6351 states and 9988 transitions. [2022-11-18 19:53:45,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:45,288 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:45,289 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:45,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 19:53:45,289 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:45,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:45,290 INFO L85 PathProgramCache]: Analyzing trace with hash -372057336, now seen corresponding path program 1 times [2022-11-18 19:53:45,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:45,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333349365] [2022-11-18 19:53:45,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:45,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:45,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:45,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:45,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:45,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:45,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:45,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:45,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:45,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:45,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:45,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:45,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:45,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:45,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:45,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333349365] [2022-11-18 19:53:45,651 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333349365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:45,651 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:45,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:45,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456480641] [2022-11-18 19:53:45,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:45,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:45,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:45,654 INFO L87 Difference]: Start difference. First operand 6351 states and 9988 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:53:54,533 INFO L93 Difference]: Finished difference Result 23225 states and 36987 transitions. [2022-11-18 19:53:54,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:53:54,534 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:53:54,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:53:54,609 INFO L225 Difference]: With dead ends: 23225 [2022-11-18 19:53:54,609 INFO L226 Difference]: Without dead ends: 16895 [2022-11-18 19:53:54,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:53:54,633 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1818 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4793 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1837 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 4860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:53:54,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1837 Valid, 2576 Invalid, 4860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4793 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-18 19:53:54,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16895 states. [2022-11-18 19:53:56,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16895 to 12304. [2022-11-18 19:53:56,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12304 states, 11375 states have (on average 1.56) internal successors, (17745), 11408 states have internal predecessors, (17745), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-11-18 19:53:56,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12304 states to 12304 states and 19416 transitions. [2022-11-18 19:53:56,615 INFO L78 Accepts]: Start accepts. Automaton has 12304 states and 19416 transitions. Word has length 184 [2022-11-18 19:53:56,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:53:56,615 INFO L495 AbstractCegarLoop]: Abstraction has 12304 states and 19416 transitions. [2022-11-18 19:53:56,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:53:56,616 INFO L276 IsEmpty]: Start isEmpty. Operand 12304 states and 19416 transitions. [2022-11-18 19:53:56,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:53:56,623 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:53:56,624 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:53:56,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-18 19:53:56,624 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:53:56,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:53:56,625 INFO L85 PathProgramCache]: Analyzing trace with hash -2141528950, now seen corresponding path program 1 times [2022-11-18 19:53:56,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:53:56,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585722770] [2022-11-18 19:53:56,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:53:56,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:53:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:53:56,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:53:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,958 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:53:56,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:53:56,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:53:56,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:53:56,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:53:56,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:53:56,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585722770] [2022-11-18 19:53:56,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585722770] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:53:56,997 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:53:56,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:53:56,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116183385] [2022-11-18 19:53:56,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:53:57,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:53:57,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:53:57,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:53:57,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:53:57,005 INFO L87 Difference]: Start difference. First operand 12304 states and 19416 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:54:02,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:02,360 INFO L93 Difference]: Finished difference Result 29252 states and 46852 transitions. [2022-11-18 19:54:02,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:54:02,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:54:02,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:02,424 INFO L225 Difference]: With dead ends: 29252 [2022-11-18 19:54:02,424 INFO L226 Difference]: Without dead ends: 16969 [2022-11-18 19:54:02,458 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:54:02,459 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 1282 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 1291 SdHoareTripleChecker+Invalid, 1848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:02,459 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1302 Valid, 1291 Invalid, 1848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-18 19:54:02,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16969 states. [2022-11-18 19:54:04,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16969 to 12304. [2022-11-18 19:54:04,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12304 states, 11375 states have (on average 1.5570989010989011) internal successors, (17712), 11408 states have internal predecessors, (17712), 698 states have call successors, (698), 198 states have call predecessors, (698), 230 states have return successors, (973), 729 states have call predecessors, (973), 698 states have call successors, (973) [2022-11-18 19:54:04,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12304 states to 12304 states and 19383 transitions. [2022-11-18 19:54:04,139 INFO L78 Accepts]: Start accepts. Automaton has 12304 states and 19383 transitions. Word has length 184 [2022-11-18 19:54:04,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:04,140 INFO L495 AbstractCegarLoop]: Abstraction has 12304 states and 19383 transitions. [2022-11-18 19:54:04,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:54:04,141 INFO L276 IsEmpty]: Start isEmpty. Operand 12304 states and 19383 transitions. [2022-11-18 19:54:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:54:04,148 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:04,148 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:04,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-18 19:54:04,149 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:54:04,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:04,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1542169288, now seen corresponding path program 1 times [2022-11-18 19:54:04,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:04,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069052465] [2022-11-18 19:54:04,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:04,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:04,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:04,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:04,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:54:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:04,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:54:04,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:04,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:54:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:04,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:54:04,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:04,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:04,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:04,501 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069052465] [2022-11-18 19:54:04,502 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069052465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:04,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:04,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:54:04,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176076852] [2022-11-18 19:54:04,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:04,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:54:04,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:04,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:54:04,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:54:04,504 INFO L87 Difference]: Start difference. First operand 12304 states and 19383 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:54:16,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:16,056 INFO L93 Difference]: Finished difference Result 45110 states and 71881 transitions. [2022-11-18 19:54:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:54:16,056 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:54:16,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:16,190 INFO L225 Difference]: With dead ends: 45110 [2022-11-18 19:54:16,190 INFO L226 Difference]: Without dead ends: 32827 [2022-11-18 19:54:16,226 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:54:16,226 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1810 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4755 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1829 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 4822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:16,227 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1829 Valid, 2576 Invalid, 4822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4755 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-18 19:54:16,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32827 states. [2022-11-18 19:54:19,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32827 to 24274. [2022-11-18 19:54:20,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24274 states, 22449 states have (on average 1.5553476769566572) internal successors, (34916), 22514 states have internal predecessors, (34916), 1370 states have call successors, (1370), 390 states have call predecessors, (1370), 454 states have return successors, (2163), 1433 states have call predecessors, (2163), 1370 states have call successors, (2163) [2022-11-18 19:54:20,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24274 states to 24274 states and 38449 transitions. [2022-11-18 19:54:20,188 INFO L78 Accepts]: Start accepts. Automaton has 24274 states and 38449 transitions. Word has length 184 [2022-11-18 19:54:20,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:20,188 INFO L495 AbstractCegarLoop]: Abstraction has 24274 states and 38449 transitions. [2022-11-18 19:54:20,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:54:20,189 INFO L276 IsEmpty]: Start isEmpty. Operand 24274 states and 38449 transitions. [2022-11-18 19:54:20,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:54:20,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:20,201 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:20,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-18 19:54:20,201 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:54:20,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:20,202 INFO L85 PathProgramCache]: Analyzing trace with hash 136977610, now seen corresponding path program 1 times [2022-11-18 19:54:20,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:20,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924115365] [2022-11-18 19:54:20,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:20,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:20,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:54:20,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:54:20,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:54:20,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:54:20,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:20,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:20,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:20,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924115365] [2022-11-18 19:54:20,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924115365] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:20,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:20,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:54:20,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762472301] [2022-11-18 19:54:20,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:20,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:54:20,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:20,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:54:20,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:54:20,496 INFO L87 Difference]: Start difference. First operand 24274 states and 38449 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:54:37,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:54:37,760 INFO L93 Difference]: Finished difference Result 88950 states and 142545 transitions. [2022-11-18 19:54:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-18 19:54:37,761 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 184 [2022-11-18 19:54:37,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:54:38,049 INFO L225 Difference]: With dead ends: 88950 [2022-11-18 19:54:38,049 INFO L226 Difference]: Without dead ends: 64697 [2022-11-18 19:54:38,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2022-11-18 19:54:38,133 INFO L413 NwaCegarLoop]: 602 mSDtfsCounter, 1815 mSDsluCounter, 1974 mSDsCounter, 0 mSdLazyCounter, 4737 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1834 SdHoareTripleChecker+Valid, 2576 SdHoareTripleChecker+Invalid, 4804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 4737 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2022-11-18 19:54:38,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1834 Valid, 2576 Invalid, 4804 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 4737 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2022-11-18 19:54:38,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64697 states. [2022-11-18 19:54:45,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64697 to 48275. [2022-11-18 19:54:45,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48275 states, 44658 states have (on average 1.5543463657127503) internal successors, (69414), 44787 states have internal predecessors, (69414), 2714 states have call successors, (2714), 774 states have call predecessors, (2714), 902 states have return successors, (5029), 2841 states have call predecessors, (5029), 2714 states have call successors, (5029) [2022-11-18 19:54:46,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48275 states to 48275 states and 77157 transitions. [2022-11-18 19:54:46,187 INFO L78 Accepts]: Start accepts. Automaton has 48275 states and 77157 transitions. Word has length 184 [2022-11-18 19:54:46,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:54:46,188 INFO L495 AbstractCegarLoop]: Abstraction has 48275 states and 77157 transitions. [2022-11-18 19:54:46,188 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2022-11-18 19:54:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 48275 states and 77157 transitions. [2022-11-18 19:54:46,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2022-11-18 19:54:46,217 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:54:46,218 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:54:46,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-18 19:54:46,219 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:54:46,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:54:46,219 INFO L85 PathProgramCache]: Analyzing trace with hash 2031311496, now seen corresponding path program 1 times [2022-11-18 19:54:46,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:54:46,220 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442729068] [2022-11-18 19:54:46,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:54:46,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:54:46,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:46,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-11-18 19:54:46,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:46,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-11-18 19:54:46,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:46,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2022-11-18 19:54:46,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:46,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-18 19:54:46,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:46,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2022-11-18 19:54:46,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:54:46,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:54:46,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:54:46,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442729068] [2022-11-18 19:54:46,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442729068] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:54:46,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:54:46,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-18 19:54:46,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190638330] [2022-11-18 19:54:46,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:54:46,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-18 19:54:46,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:54:46,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-18 19:54:46,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-18 19:54:46,559 INFO L87 Difference]: Start difference. First operand 48275 states and 77157 transitions. Second operand has 7 states, 7 states have (on average 24.857142857142858) internal successors, (174), 5 states have internal predecessors, (174), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5)