./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:23:02,839 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:23:02,841 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:23:02,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:23:02,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:23:02,889 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:23:02,891 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:23:02,894 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:23:02,897 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:23:02,900 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:23:02,902 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:23:02,904 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:23:02,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:23:02,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:23:02,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:23:02,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:23:02,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:23:02,917 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:23:02,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:23:02,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:23:02,927 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:23:02,928 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:23:02,930 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:23:02,932 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:23:02,938 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:23:02,942 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:23:02,942 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:23:02,943 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:23:02,945 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:23:02,946 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:23:02,947 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:23:02,948 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:23:02,949 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:23:02,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:23:02,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:23:02,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:23:02,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:23:02,954 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:23:02,954 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:23:02,955 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:23:02,956 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:23:02,956 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-16 12:23:03,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:23:03,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:23:03,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:23:03,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:23:03,003 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:23:03,004 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:23:03,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:23:03,005 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:23:03,005 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:23:03,005 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:23:03,007 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 12:23:03,007 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:23:03,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:23:03,008 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:23:03,008 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:23:03,008 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:23:03,008 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:23:03,009 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:23:03,009 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:23:03,009 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:23:03,009 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:23:03,010 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:23:03,010 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:23:03,010 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:23:03,011 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:23:03,011 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 12:23:03,011 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 12:23:03,011 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:23:03,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:23:03,012 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:23:03,012 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_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b [2022-11-16 12:23:03,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:23:03,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:23:03,344 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:23:03,346 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:23:03,348 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:23:03,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-16 12:23:03,425 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/7a42cee17/7fa6e75af69642b68ae865950b0d3b0c/FLAG0e79ed9bf [2022-11-16 12:23:04,294 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:23:04,295 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-16 12:23:04,352 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/7a42cee17/7fa6e75af69642b68ae865950b0d3b0c/FLAG0e79ed9bf [2022-11-16 12:23:04,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/7a42cee17/7fa6e75af69642b68ae865950b0d3b0c [2022-11-16 12:23:04,777 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:23:04,780 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:23:04,784 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:23:04,784 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:23:04,789 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:23:04,790 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:23:04" (1/1) ... [2022-11-16 12:23:04,791 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6df27eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:04, skipping insertion in model container [2022-11-16 12:23:04,791 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:23:04" (1/1) ... [2022-11-16 12:23:04,800 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:23:04,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:23:06,183 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-16 12:23:06,217 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 12:23:06,223 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:23:06,254 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:23:06,577 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-16 12:23:06,589 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 12:23:06,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:23:06,668 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:23:06,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06 WrapperNode [2022-11-16 12:23:06,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:23:06,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:23:06,670 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:23:06,670 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:23:06,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:06,756 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:06,923 INFO L138 Inliner]: procedures = 141, calls = 1103, calls flagged for inlining = 57, calls inlined = 55, statements flattened = 2428 [2022-11-16 12:23:06,923 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:23:06,924 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:23:06,925 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:23:06,925 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:23:06,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:06,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:06,973 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:06,973 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:07,098 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:07,121 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:07,138 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:07,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:07,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:23:07,177 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:23:07,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:23:07,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:23:07,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (1/1) ... [2022-11-16 12:23:07,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:23:07,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:23:07,212 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:23:07,235 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:23:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2022-11-16 12:23:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2022-11-16 12:23:07,264 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-16 12:23:07,264 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-16 12:23:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-16 12:23:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2022-11-16 12:23:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2022-11-16 12:23:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2022-11-16 12:23:07,265 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2022-11-16 12:23:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 12:23:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:23:07,265 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:23:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:23:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:23:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-16 12:23:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 12:23:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 12:23:07,266 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-16 12:23:07,266 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-16 12:23:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:23:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:23:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:23:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:23:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:23:07,267 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:23:07,267 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-16 12:23:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-16 12:23:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-16 12:23:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-16 12:23:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2022-11-16 12:23:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2022-11-16 12:23:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:23:07,268 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:23:07,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 12:23:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:23:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:23:07,269 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:23:07,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:23:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 12:23:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 12:23:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:23:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:23:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2022-11-16 12:23:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2022-11-16 12:23:07,270 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 12:23:07,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 12:23:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:23:07,271 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:23:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:23:07,271 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 12:23:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 12:23:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-16 12:23:07,272 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-16 12:23:07,272 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:23:07,273 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:23:07,274 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:23:07,274 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2022-11-16 12:23:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2022-11-16 12:23:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 12:23:07,275 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 12:23:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:23:07,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:23:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:23:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:23:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 12:23:07,276 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2022-11-16 12:23:07,276 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2022-11-16 12:23:07,277 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2022-11-16 12:23:07,277 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2022-11-16 12:23:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2022-11-16 12:23:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2022-11-16 12:23:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:23:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:23:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2022-11-16 12:23:07,278 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2022-11-16 12:23:07,278 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 12:23:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 12:23:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2022-11-16 12:23:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2022-11-16 12:23:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 12:23:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 12:23:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2022-11-16 12:23:07,279 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2022-11-16 12:23:07,279 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 12:23:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 12:23:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 12:23:07,280 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2022-11-16 12:23:07,280 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2022-11-16 12:23:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:23:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:23:07,281 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2022-11-16 12:23:07,281 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2022-11-16 12:23:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2022-11-16 12:23:07,282 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2022-11-16 12:23:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2022-11-16 12:23:07,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:23:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:23:07,283 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2022-11-16 12:23:07,283 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2022-11-16 12:23:07,813 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:23:07,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:23:12,259 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:23:22,430 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:23:22,441 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:23:22,441 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:23:22,444 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:22 BoogieIcfgContainer [2022-11-16 12:23:22,444 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:23:22,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:23:22,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:23:22,450 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:23:22,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:23:04" (1/3) ... [2022-11-16 12:23:22,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2cd97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:23:22, skipping insertion in model container [2022-11-16 12:23:22,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:23:06" (2/3) ... [2022-11-16 12:23:22,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2cd97e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:23:22, skipping insertion in model container [2022-11-16 12:23:22,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:22" (3/3) ... [2022-11-16 12:23:22,453 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-16 12:23:22,471 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:23:22,471 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:23:22,533 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:23:22,540 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;@172fca4e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:23:22,540 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:23:22,546 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-16 12:23:22,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-16 12:23:22,560 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:22,561 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:22,561 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:22,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:22,567 INFO L85 PathProgramCache]: Analyzing trace with hash 653302310, now seen corresponding path program 1 times [2022-11-16 12:23:22,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:22,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469960075] [2022-11-16 12:23:22,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:22,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:23,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:23,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:23:23,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:23,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:23:23,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:23,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:23:23,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:23,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:23:23,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:23,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,728 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:23,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:23:23,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:23,836 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-16 12:23:23,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:23,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469960075] [2022-11-16 12:23:23,837 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469960075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:23,838 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:23,838 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:23:23,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914056536] [2022-11-16 12:23:23,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:23,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:23,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:23,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:23,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:23,885 INFO L87 Difference]: Start difference. First operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 12:23:26,356 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:30,963 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:33,913 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:36,016 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:38,266 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:38,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:38,939 INFO L93 Difference]: Finished difference Result 2052 states and 2981 transitions. [2022-11-16 12:23:38,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:23:38,945 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 133 [2022-11-16 12:23:38,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:38,972 INFO L225 Difference]: With dead ends: 2052 [2022-11-16 12:23:38,972 INFO L226 Difference]: Without dead ends: 1412 [2022-11-16 12:23:38,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:23:38,987 INFO L413 NwaCegarLoop]: 838 mSDtfsCounter, 2116 mSDsluCounter, 1127 mSDsCounter, 0 mSdLazyCounter, 895 mSolverCounterSat, 1157 mSolverCounterUnsat, 5 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2215 SdHoareTripleChecker+Valid, 1965 SdHoareTripleChecker+Invalid, 2057 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1157 IncrementalHoareTripleChecker+Valid, 895 IncrementalHoareTripleChecker+Invalid, 5 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:38,988 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2215 Valid, 1965 Invalid, 2057 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1157 Valid, 895 Invalid, 5 Unknown, 0 Unchecked, 14.6s Time] [2022-11-16 12:23:39,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1412 states. [2022-11-16 12:23:39,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1412 to 1180. [2022-11-16 12:23:39,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1180 states, 854 states have (on average 1.3302107728337236) internal successors, (1136), 873 states have internal predecessors, (1136), 250 states have call successors, (250), 75 states have call predecessors, (250), 75 states have return successors, (252), 243 states have call predecessors, (252), 248 states have call successors, (252) [2022-11-16 12:23:39,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1180 states to 1180 states and 1638 transitions. [2022-11-16 12:23:39,146 INFO L78 Accepts]: Start accepts. Automaton has 1180 states and 1638 transitions. Word has length 133 [2022-11-16 12:23:39,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:39,147 INFO L495 AbstractCegarLoop]: Abstraction has 1180 states and 1638 transitions. [2022-11-16 12:23:39,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 3 states have internal predecessors, (37), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 12:23:39,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1180 states and 1638 transitions. [2022-11-16 12:23:39,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2022-11-16 12:23:39,151 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:39,152 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:39,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 12:23:39,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:39,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:39,153 INFO L85 PathProgramCache]: Analyzing trace with hash -388531533, now seen corresponding path program 1 times [2022-11-16 12:23:39,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:39,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918329171] [2022-11-16 12:23:39,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:39,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:39,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:39,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:23:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:23:39,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:39,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:23:39,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:39,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:23:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:39,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:39,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:39,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:23:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:39,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:39,691 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-16 12:23:39,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:39,692 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918329171] [2022-11-16 12:23:39,692 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918329171] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:39,692 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:39,692 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:23:39,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412587191] [2022-11-16 12:23:39,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:39,694 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:23:39,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:39,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:23:39,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:23:39,695 INFO L87 Difference]: Start difference. First operand 1180 states and 1638 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 12:23:42,159 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:46,488 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:49,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:51,497 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:23:52,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:23:52,076 INFO L93 Difference]: Finished difference Result 2609 states and 3655 transitions. [2022-11-16 12:23:52,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:23:52,077 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 136 [2022-11-16 12:23:52,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:23:52,088 INFO L225 Difference]: With dead ends: 2609 [2022-11-16 12:23:52,088 INFO L226 Difference]: Without dead ends: 1453 [2022-11-16 12:23:52,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:23:52,094 INFO L413 NwaCegarLoop]: 926 mSDtfsCounter, 1691 mSDsluCounter, 1320 mSDsCounter, 0 mSdLazyCounter, 854 mSolverCounterSat, 738 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1773 SdHoareTripleChecker+Valid, 2246 SdHoareTripleChecker+Invalid, 1596 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 738 IncrementalHoareTripleChecker+Valid, 854 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:23:52,095 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1773 Valid, 2246 Invalid, 1596 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [738 Valid, 854 Invalid, 4 Unknown, 0 Unchecked, 12.0s Time] [2022-11-16 12:23:52,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1453 states. [2022-11-16 12:23:52,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1453 to 1206. [2022-11-16 12:23:52,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1206 states, 874 states have (on average 1.3272311212814645) internal successors, (1160), 893 states have internal predecessors, (1160), 251 states have call successors, (251), 80 states have call predecessors, (251), 80 states have return successors, (253), 244 states have call predecessors, (253), 249 states have call successors, (253) [2022-11-16 12:23:52,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1206 states to 1206 states and 1664 transitions. [2022-11-16 12:23:52,189 INFO L78 Accepts]: Start accepts. Automaton has 1206 states and 1664 transitions. Word has length 136 [2022-11-16 12:23:52,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:23:52,190 INFO L495 AbstractCegarLoop]: Abstraction has 1206 states and 1664 transitions. [2022-11-16 12:23:52,190 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 4 states have internal predecessors, (40), 2 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 12:23:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1206 states and 1664 transitions. [2022-11-16 12:23:52,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2022-11-16 12:23:52,200 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:23:52,201 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:23:52,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 12:23:52,202 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:23:52,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:23:52,203 INFO L85 PathProgramCache]: Analyzing trace with hash 1783786572, now seen corresponding path program 1 times [2022-11-16 12:23:52,203 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:23:52,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569589347] [2022-11-16 12:23:52,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:23:52,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:23:52,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:23:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:52,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:23:52,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:52,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:23:52,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:52,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:23:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:52,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:23:52,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:52,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:23:52,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:23:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:23:52,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:23:52,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:23:52,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:23:52,736 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-11-16 12:23:52,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:23:52,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569589347] [2022-11-16 12:23:52,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569589347] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:23:52,737 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:23:52,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:23:52,738 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014811489] [2022-11-16 12:23:52,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:23:52,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:23:52,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:23:52,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:23:52,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:23:52,739 INFO L87 Difference]: Start difference. First operand 1206 states and 1664 transitions. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:23:55,097 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:00,312 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:02,324 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:04,530 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:06,535 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:09,546 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:11,602 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:13,731 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:15,757 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:16,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:16,813 INFO L93 Difference]: Finished difference Result 3996 states and 5624 transitions. [2022-11-16 12:24:16,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:16,820 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 144 [2022-11-16 12:24:16,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:16,850 INFO L225 Difference]: With dead ends: 3996 [2022-11-16 12:24:16,851 INFO L226 Difference]: Without dead ends: 2810 [2022-11-16 12:24:16,859 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:24:16,864 INFO L413 NwaCegarLoop]: 818 mSDtfsCounter, 1808 mSDsluCounter, 1424 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 826 mSolverCounterUnsat, 9 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 23.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1901 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 1971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 826 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 9 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:16,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1901 Valid, 2242 Invalid, 1971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [826 Valid, 1136 Invalid, 9 Unknown, 0 Unchecked, 23.7s Time] [2022-11-16 12:24:16,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2810 states. [2022-11-16 12:24:17,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2810 to 2325. [2022-11-16 12:24:17,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2325 states, 1689 states have (on average 1.330373001776199) internal successors, (2247), 1722 states have internal predecessors, (2247), 483 states have call successors, (483), 152 states have call predecessors, (483), 152 states have return successors, (489), 472 states have call predecessors, (489), 481 states have call successors, (489) [2022-11-16 12:24:17,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2325 states to 2325 states and 3219 transitions. [2022-11-16 12:24:17,044 INFO L78 Accepts]: Start accepts. Automaton has 2325 states and 3219 transitions. Word has length 144 [2022-11-16 12:24:17,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:17,045 INFO L495 AbstractCegarLoop]: Abstraction has 2325 states and 3219 transitions. [2022-11-16 12:24:17,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 3 states have internal predecessors, (44), 3 states have call successors, (12), 5 states have call predecessors, (12), 1 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-11-16 12:24:17,045 INFO L276 IsEmpty]: Start isEmpty. Operand 2325 states and 3219 transitions. [2022-11-16 12:24:17,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-11-16 12:24:17,048 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:17,049 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:17,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 12:24:17,049 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:17,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:17,050 INFO L85 PathProgramCache]: Analyzing trace with hash 1681406430, now seen corresponding path program 1 times [2022-11-16 12:24:17,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:17,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398276086] [2022-11-16 12:24:17,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:17,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:17,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:24:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:17,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:24:17,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:17,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:24:17,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:24:17,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:24:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:24:17,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:17,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:24:17,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:24:17,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:17,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2022-11-16 12:24:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2022-11-16 12:24:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:17,647 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-16 12:24:17,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:17,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1398276086] [2022-11-16 12:24:17,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1398276086] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:17,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:17,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:24:17,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619506045] [2022-11-16 12:24:17,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:17,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:17,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:17,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:17,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:24:17,650 INFO L87 Difference]: Start difference. First operand 2325 states and 3219 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:24:21,198 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:23,205 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:25,213 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:28,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:30,948 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:32,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:33,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:33,678 INFO L93 Difference]: Finished difference Result 4821 states and 6715 transitions. [2022-11-16 12:24:33,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:24:33,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 150 [2022-11-16 12:24:33,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:33,692 INFO L225 Difference]: With dead ends: 4821 [2022-11-16 12:24:33,692 INFO L226 Difference]: Without dead ends: 2520 [2022-11-16 12:24:33,700 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:24:33,701 INFO L413 NwaCegarLoop]: 575 mSDtfsCounter, 1097 mSDsluCounter, 1248 mSDsCounter, 0 mSdLazyCounter, 911 mSolverCounterSat, 428 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1185 SdHoareTripleChecker+Valid, 1823 SdHoareTripleChecker+Invalid, 1345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 428 IncrementalHoareTripleChecker+Valid, 911 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 15.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:33,701 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1185 Valid, 1823 Invalid, 1345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [428 Valid, 911 Invalid, 6 Unknown, 0 Unchecked, 15.7s Time] [2022-11-16 12:24:33,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2520 states. [2022-11-16 12:24:33,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2520 to 1993. [2022-11-16 12:24:33,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1993 states, 1448 states have (on average 1.3225138121546962) internal successors, (1915), 1473 states have internal predecessors, (1915), 403 states have call successors, (403), 142 states have call predecessors, (403), 141 states have return successors, (401), 393 states have call predecessors, (401), 401 states have call successors, (401) [2022-11-16 12:24:33,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1993 states to 1993 states and 2719 transitions. [2022-11-16 12:24:33,837 INFO L78 Accepts]: Start accepts. Automaton has 1993 states and 2719 transitions. Word has length 150 [2022-11-16 12:24:33,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:33,838 INFO L495 AbstractCegarLoop]: Abstraction has 1993 states and 2719 transitions. [2022-11-16 12:24:33,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (16), 6 states have call predecessors, (16), 1 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:24:33,838 INFO L276 IsEmpty]: Start isEmpty. Operand 1993 states and 2719 transitions. [2022-11-16 12:24:33,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-16 12:24:33,843 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:33,843 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:33,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 12:24:33,844 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:33,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:33,844 INFO L85 PathProgramCache]: Analyzing trace with hash 693090907, now seen corresponding path program 1 times [2022-11-16 12:24:33,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:33,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248677146] [2022-11-16 12:24:33,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:33,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:24:34,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:34,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:24:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:34,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:24:34,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:34,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:24:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:34,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:24:34,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:34,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:24:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:34,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:24:34,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:24:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:34,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2022-11-16 12:24:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:24:34,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:24:34,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2022-11-16 12:24:34,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:34,316 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2022-11-16 12:24:34,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:34,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248677146] [2022-11-16 12:24:34,316 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248677146] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:34,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:34,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:24:34,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103377926] [2022-11-16 12:24:34,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:34,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:24:34,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:34,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:24:34,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:24:34,319 INFO L87 Difference]: Start difference. First operand 1993 states and 2719 transitions. Second operand has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:24:38,395 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:40,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:43,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:45,764 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:47,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:47,310 INFO L93 Difference]: Finished difference Result 4585 states and 6341 transitions. [2022-11-16 12:24:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:24:47,311 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 175 [2022-11-16 12:24:47,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:47,326 INFO L225 Difference]: With dead ends: 4585 [2022-11-16 12:24:47,327 INFO L226 Difference]: Without dead ends: 2616 [2022-11-16 12:24:47,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:24:47,334 INFO L413 NwaCegarLoop]: 672 mSDtfsCounter, 1376 mSDsluCounter, 1533 mSDsCounter, 0 mSdLazyCounter, 1152 mSolverCounterSat, 817 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1460 SdHoareTripleChecker+Valid, 2205 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 817 IncrementalHoareTripleChecker+Valid, 1152 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:47,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1460 Valid, 2205 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [817 Valid, 1152 Invalid, 4 Unknown, 0 Unchecked, 12.6s Time] [2022-11-16 12:24:47,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2616 states. [2022-11-16 12:24:47,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2616 to 2068. [2022-11-16 12:24:47,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2068 states, 1500 states have (on average 1.3306666666666667) internal successors, (1996), 1525 states have internal predecessors, (1996), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-16 12:24:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2826 transitions. [2022-11-16 12:24:47,472 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2826 transitions. Word has length 175 [2022-11-16 12:24:47,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:47,473 INFO L495 AbstractCegarLoop]: Abstraction has 2068 states and 2826 transitions. [2022-11-16 12:24:47,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.714285714285714) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:24:47,474 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2826 transitions. [2022-11-16 12:24:47,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2022-11-16 12:24:47,479 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:47,479 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:47,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 12:24:47,480 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:47,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:47,480 INFO L85 PathProgramCache]: Analyzing trace with hash 474852391, now seen corresponding path program 1 times [2022-11-16 12:24:47,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:47,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404412247] [2022-11-16 12:24:47,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:47,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:47,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:24:47,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:47,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:24:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:24:47,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:24:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:47,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:24:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:24:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:47,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:24:47,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:47,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:47,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:48,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:24:48,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:48,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:48,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:24:48,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:48,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2022-11-16 12:24:48,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-16 12:24:48,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:48,098 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404412247] [2022-11-16 12:24:48,098 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404412247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:48,098 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:48,098 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:24:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762559071] [2022-11-16 12:24:48,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:48,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:24:48,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:48,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:24:48,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:24:48,101 INFO L87 Difference]: Start difference. First operand 2068 states and 2826 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 12:24:52,219 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:55,479 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:24:56,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:24:56,286 INFO L93 Difference]: Finished difference Result 4798 states and 6848 transitions. [2022-11-16 12:24:56,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:24:56,287 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 178 [2022-11-16 12:24:56,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:24:56,303 INFO L225 Difference]: With dead ends: 4798 [2022-11-16 12:24:56,303 INFO L226 Difference]: Without dead ends: 3111 [2022-11-16 12:24:56,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:24:56,310 INFO L413 NwaCegarLoop]: 755 mSDtfsCounter, 792 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 1137 mSolverCounterSat, 327 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 846 SdHoareTripleChecker+Valid, 2425 SdHoareTripleChecker+Invalid, 1466 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 327 IncrementalHoareTripleChecker+Valid, 1137 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:24:56,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [846 Valid, 2425 Invalid, 1466 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [327 Valid, 1137 Invalid, 2 Unknown, 0 Unchecked, 7.9s Time] [2022-11-16 12:24:56,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3111 states. [2022-11-16 12:24:56,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3111 to 2072. [2022-11-16 12:24:56,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1504 states have (on average 1.3297872340425532) internal successors, (2000), 1529 states have internal predecessors, (2000), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-16 12:24:56,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2830 transitions. [2022-11-16 12:24:56,479 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2830 transitions. Word has length 178 [2022-11-16 12:24:56,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:24:56,479 INFO L495 AbstractCegarLoop]: Abstraction has 2072 states and 2830 transitions. [2022-11-16 12:24:56,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 12:24:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2830 transitions. [2022-11-16 12:24:56,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2022-11-16 12:24:56,485 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:24:56,485 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:24:56,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 12:24:56,485 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:24:56,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:24:56,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1205450467, now seen corresponding path program 1 times [2022-11-16 12:24:56,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:24:56,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088791408] [2022-11-16 12:24:56,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:24:56,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:24:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:24:56,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:56,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:24:56,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:24:56,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:24:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:24:56,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:56,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,909 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:24:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:24:56,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:24:56,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:24:56,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:24:56,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:56,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:24:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:57,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:24:57,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:24:57,056 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-16 12:24:57,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:24:57,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088791408] [2022-11-16 12:24:57,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088791408] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:24:57,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:24:57,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:24:57,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275335382] [2022-11-16 12:24:57,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:24:57,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:24:57,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:24:57,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:24:57,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:24:57,059 INFO L87 Difference]: Start difference. First operand 2072 states and 2830 transitions. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 12:25:00,979 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:02,987 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:06,634 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:08,659 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:11,107 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:13,114 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:13,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:13,865 INFO L93 Difference]: Finished difference Result 4806 states and 6856 transitions. [2022-11-16 12:25:13,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:13,866 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) Word has length 179 [2022-11-16 12:25:13,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:13,887 INFO L225 Difference]: With dead ends: 4806 [2022-11-16 12:25:13,887 INFO L226 Difference]: Without dead ends: 3115 [2022-11-16 12:25:13,895 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:25:13,896 INFO L413 NwaCegarLoop]: 743 mSDtfsCounter, 826 mSDsluCounter, 2052 mSDsCounter, 0 mSdLazyCounter, 1230 mSolverCounterSat, 441 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 880 SdHoareTripleChecker+Valid, 2795 SdHoareTripleChecker+Invalid, 1677 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 441 IncrementalHoareTripleChecker+Valid, 1230 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:13,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [880 Valid, 2795 Invalid, 1677 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [441 Valid, 1230 Invalid, 6 Unknown, 0 Unchecked, 16.5s Time] [2022-11-16 12:25:13,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3115 states. [2022-11-16 12:25:14,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3115 to 2072. [2022-11-16 12:25:14,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2072 states, 1504 states have (on average 1.3297872340425532) internal successors, (2000), 1529 states have internal predecessors, (2000), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-16 12:25:14,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2072 states to 2072 states and 2830 transitions. [2022-11-16 12:25:14,083 INFO L78 Accepts]: Start accepts. Automaton has 2072 states and 2830 transitions. Word has length 179 [2022-11-16 12:25:14,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:14,083 INFO L495 AbstractCegarLoop]: Abstraction has 2072 states and 2830 transitions. [2022-11-16 12:25:14,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 6 states have call predecessors, (14), 1 states have return successors, (13), 1 states have call predecessors, (13), 1 states have call successors, (13) [2022-11-16 12:25:14,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2072 states and 2830 transitions. [2022-11-16 12:25:14,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-16 12:25:14,089 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:14,090 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:14,090 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-16 12:25:14,090 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:14,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:14,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1228318910, now seen corresponding path program 1 times [2022-11-16 12:25:14,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:14,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101522320] [2022-11-16 12:25:14,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:14,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:14,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:25:15,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:15,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:25:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:15,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:25:15,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:15,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:25:15,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:15,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:25:15,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:15,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:25:15,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:15,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:25:15,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:25:15,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:15,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:25:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2022-11-16 12:25:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:25:15,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2022-11-16 12:25:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-16 12:25:15,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:15,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2101522320] [2022-11-16 12:25:15,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2101522320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:15,650 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:15,651 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:25:15,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554962757] [2022-11-16 12:25:15,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:15,652 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:25:15,652 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:15,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:25:15,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:25:15,653 INFO L87 Difference]: Start difference. First operand 2072 states and 2830 transitions. Second operand has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:25:19,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:21,921 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:23,923 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:27,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:29,567 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:31,571 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:32,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:32,900 INFO L93 Difference]: Finished difference Result 4310 states and 5980 transitions. [2022-11-16 12:25:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:25:32,901 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 185 [2022-11-16 12:25:32,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:32,919 INFO L225 Difference]: With dead ends: 4310 [2022-11-16 12:25:32,919 INFO L226 Difference]: Without dead ends: 2619 [2022-11-16 12:25:32,926 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:25:32,927 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 508 mSDsluCounter, 1953 mSDsCounter, 0 mSdLazyCounter, 1328 mSolverCounterSat, 329 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 2543 SdHoareTripleChecker+Invalid, 1663 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 329 IncrementalHoareTripleChecker+Valid, 1328 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:32,928 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [533 Valid, 2543 Invalid, 1663 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [329 Valid, 1328 Invalid, 6 Unknown, 0 Unchecked, 16.9s Time] [2022-11-16 12:25:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2619 states. [2022-11-16 12:25:33,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2619 to 2076. [2022-11-16 12:25:33,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2076 states, 1508 states have (on average 1.3289124668435013) internal successors, (2004), 1533 states have internal predecessors, (2004), 416 states have call successors, (416), 152 states have call predecessors, (416), 151 states have return successors, (414), 410 states have call predecessors, (414), 414 states have call successors, (414) [2022-11-16 12:25:33,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2076 states to 2076 states and 2834 transitions. [2022-11-16 12:25:33,109 INFO L78 Accepts]: Start accepts. Automaton has 2076 states and 2834 transitions. Word has length 185 [2022-11-16 12:25:33,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:33,110 INFO L495 AbstractCegarLoop]: Abstraction has 2076 states and 2834 transitions. [2022-11-16 12:25:33,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.625) internal successors, (77), 4 states have internal predecessors, (77), 2 states have call successors, (19), 6 states have call predecessors, (19), 1 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:25:33,111 INFO L276 IsEmpty]: Start isEmpty. Operand 2076 states and 2834 transitions. [2022-11-16 12:25:33,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-11-16 12:25:33,116 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:33,116 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:33,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-16 12:25:33,117 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:33,117 INFO L85 PathProgramCache]: Analyzing trace with hash 990566495, now seen corresponding path program 1 times [2022-11-16 12:25:33,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:33,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183834433] [2022-11-16 12:25:33,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:33,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:25:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:25:33,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:25:33,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:25:33,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:33,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:25:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:33,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:25:33,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:33,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:25:33,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:25:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:33,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:25:33,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:33,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-16 12:25:33,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:34,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:34,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:34,016 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-16 12:25:34,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:34,016 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183834433] [2022-11-16 12:25:34,017 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183834433] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:34,017 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:34,017 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:25:34,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669382409] [2022-11-16 12:25:34,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:34,017 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:25:34,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:25:34,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:25:34,018 INFO L87 Difference]: Start difference. First operand 2076 states and 2834 transitions. Second operand has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 12:25:39,403 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:43,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:47,444 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:25:48,455 INFO L93 Difference]: Finished difference Result 5606 states and 8238 transitions. [2022-11-16 12:25:48,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:25:48,456 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 185 [2022-11-16 12:25:48,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:25:48,479 INFO L225 Difference]: With dead ends: 5606 [2022-11-16 12:25:48,479 INFO L226 Difference]: Without dead ends: 3911 [2022-11-16 12:25:48,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:25:48,487 INFO L413 NwaCegarLoop]: 768 mSDtfsCounter, 1533 mSDsluCounter, 4042 mSDsCounter, 0 mSdLazyCounter, 2535 mSolverCounterSat, 631 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1603 SdHoareTripleChecker+Valid, 4810 SdHoareTripleChecker+Invalid, 3169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 631 IncrementalHoareTripleChecker+Valid, 2535 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:25:48,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1603 Valid, 4810 Invalid, 3169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [631 Valid, 2535 Invalid, 3 Unknown, 0 Unchecked, 13.8s Time] [2022-11-16 12:25:48,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3911 states. [2022-11-16 12:25:48,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3911 to 2084. [2022-11-16 12:25:48,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2084 states, 1514 states have (on average 1.3276089828269484) internal successors, (2010), 1539 states have internal predecessors, (2010), 416 states have call successors, (416), 152 states have call predecessors, (416), 153 states have return successors, (418), 412 states have call predecessors, (418), 414 states have call successors, (418) [2022-11-16 12:25:48,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2084 states to 2084 states and 2844 transitions. [2022-11-16 12:25:48,719 INFO L78 Accepts]: Start accepts. Automaton has 2084 states and 2844 transitions. Word has length 185 [2022-11-16 12:25:48,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:25:48,720 INFO L495 AbstractCegarLoop]: Abstraction has 2084 states and 2844 transitions. [2022-11-16 12:25:48,720 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 6.833333333333333) internal successors, (82), 6 states have internal predecessors, (82), 2 states have call successors, (15), 7 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 12:25:48,720 INFO L276 IsEmpty]: Start isEmpty. Operand 2084 states and 2844 transitions. [2022-11-16 12:25:48,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-16 12:25:48,726 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:25:48,726 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:25:48,726 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-16 12:25:48,726 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:25:48,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:25:48,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1789257482, now seen corresponding path program 1 times [2022-11-16 12:25:48,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:25:48,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167966804] [2022-11-16 12:25:48,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:25:48,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:25:48,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:25:50,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:25:50,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:25:50,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:25:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:50,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:25:50,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:50,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:25:50,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:25:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:25:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:25:50,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:25:50,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 12:25:50,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:25:50,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2022-11-16 12:25:50,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2022-11-16 12:25:50,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2022-11-16 12:25:50,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:25:50,608 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-16 12:25:50,609 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:25:50,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167966804] [2022-11-16 12:25:50,609 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167966804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:25:50,609 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:25:50,609 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-11-16 12:25:50,610 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695280728] [2022-11-16 12:25:50,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:25:50,610 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:25:50,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:25:50,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:25:50,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:25:50,611 INFO L87 Difference]: Start difference. First operand 2084 states and 2844 transitions. Second operand has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 12:25:55,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:57,983 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:25:59,993 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:02,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:06,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:08,716 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:10,721 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:12,738 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:14,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:14,592 INFO L93 Difference]: Finished difference Result 4334 states and 6008 transitions. [2022-11-16 12:26:14,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:26:14,593 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 197 [2022-11-16 12:26:14,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:14,605 INFO L225 Difference]: With dead ends: 4334 [2022-11-16 12:26:14,606 INFO L226 Difference]: Without dead ends: 2631 [2022-11-16 12:26:14,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=70, Invalid=272, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:26:14,613 INFO L413 NwaCegarLoop]: 586 mSDtfsCounter, 459 mSDsluCounter, 4311 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 323 mSolverCounterUnsat, 8 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 4897 SdHoareTripleChecker+Invalid, 2854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 8 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:14,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 4897 Invalid, 2854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [323 Valid, 2523 Invalid, 8 Unknown, 0 Unchecked, 23.4s Time] [2022-11-16 12:26:14,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2022-11-16 12:26:14,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2096. [2022-11-16 12:26:14,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2096 states, 1522 states have (on average 1.325886990801577) internal successors, (2018), 1547 states have internal predecessors, (2018), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 416 states have call predecessors, (434), 414 states have call successors, (434) [2022-11-16 12:26:14,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2096 states to 2096 states and 2868 transitions. [2022-11-16 12:26:14,831 INFO L78 Accepts]: Start accepts. Automaton has 2096 states and 2868 transitions. Word has length 197 [2022-11-16 12:26:14,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:14,831 INFO L495 AbstractCegarLoop]: Abstraction has 2096 states and 2868 transitions. [2022-11-16 12:26:14,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.538461538461538) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 12:26:14,832 INFO L276 IsEmpty]: Start isEmpty. Operand 2096 states and 2868 transitions. [2022-11-16 12:26:14,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-16 12:26:14,839 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:14,839 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:14,839 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-16 12:26:14,839 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:26:14,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:14,840 INFO L85 PathProgramCache]: Analyzing trace with hash 1452629847, now seen corresponding path program 1 times [2022-11-16 12:26:14,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:14,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587062362] [2022-11-16 12:26:14,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:14,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:14,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:26:15,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:15,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:26:15,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:15,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:26:15,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:26:15,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:15,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:26:15,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:15,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:26:15,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:26:15,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:26:15,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:15,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:26:15,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:15,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-11-16 12:26:15,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:16,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:16,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2022-11-16 12:26:16,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:16,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2022-11-16 12:26:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:16,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:26:16,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:16,197 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2022-11-16 12:26:16,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:16,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587062362] [2022-11-16 12:26:16,198 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587062362] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:16,198 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:26:16,198 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-11-16 12:26:16,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812839850] [2022-11-16 12:26:16,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:16,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-16 12:26:16,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:16,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-16 12:26:16,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2022-11-16 12:26:16,201 INFO L87 Difference]: Start difference. First operand 2096 states and 2868 transitions. Second operand has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 12:26:21,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:23,268 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:27,502 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:29,523 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:32,635 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:34,643 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:35,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:35,732 INFO L93 Difference]: Finished difference Result 4731 states and 6693 transitions. [2022-11-16 12:26:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:26:35,732 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 196 [2022-11-16 12:26:35,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:35,744 INFO L225 Difference]: With dead ends: 4731 [2022-11-16 12:26:35,745 INFO L226 Difference]: Without dead ends: 3016 [2022-11-16 12:26:35,752 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:26:35,753 INFO L413 NwaCegarLoop]: 780 mSDtfsCounter, 601 mSDsluCounter, 5137 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 316 mSolverCounterUnsat, 6 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 661 SdHoareTripleChecker+Valid, 5917 SdHoareTripleChecker+Invalid, 2692 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 6 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:35,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [661 Valid, 5917 Invalid, 2692 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [316 Valid, 2370 Invalid, 6 Unknown, 0 Unchecked, 18.9s Time] [2022-11-16 12:26:35,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3016 states. [2022-11-16 12:26:35,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3016 to 2100. [2022-11-16 12:26:35,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2100 states, 1526 states have (on average 1.3250327653997378) internal successors, (2022), 1549 states have internal predecessors, (2022), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 418 states have call predecessors, (434), 414 states have call successors, (434) [2022-11-16 12:26:35,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2100 states to 2100 states and 2872 transitions. [2022-11-16 12:26:35,970 INFO L78 Accepts]: Start accepts. Automaton has 2100 states and 2872 transitions. Word has length 196 [2022-11-16 12:26:35,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:35,972 INFO L495 AbstractCegarLoop]: Abstraction has 2100 states and 2872 transitions. [2022-11-16 12:26:35,972 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 7.0) internal successors, (84), 5 states have internal predecessors, (84), 2 states have call successors, (21), 7 states have call predecessors, (21), 3 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 12:26:35,972 INFO L276 IsEmpty]: Start isEmpty. Operand 2100 states and 2872 transitions. [2022-11-16 12:26:35,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 204 [2022-11-16 12:26:35,978 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:35,978 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:35,978 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-16 12:26:35,979 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:26:35,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:35,979 INFO L85 PathProgramCache]: Analyzing trace with hash -859840518, now seen corresponding path program 1 times [2022-11-16 12:26:35,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:35,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026445237] [2022-11-16 12:26:35,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:35,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:36,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:26:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:36,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:26:36,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:26:36,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:36,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:26:36,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:26:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:26:36,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:36,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:26:36,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2022-11-16 12:26:36,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:36,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2022-11-16 12:26:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2022-11-16 12:26:37,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:37,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:26:37,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2022-11-16 12:26:37,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 12:26:37,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2022-11-16 12:26:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,123 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 238 trivial. 0 not checked. [2022-11-16 12:26:37,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:37,123 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026445237] [2022-11-16 12:26:37,124 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026445237] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:37,124 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112169909] [2022-11-16 12:26:37,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:37,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:26:37,124 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:26:37,131 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:26:37,151 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-16 12:26:37,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:37,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 2247 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:26:37,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:38,100 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 214 trivial. 0 not checked. [2022-11-16 12:26:38,101 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:26:38,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [112169909] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:26:38,101 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-11-16 12:26:38,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [11] total 13 [2022-11-16 12:26:38,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459581864] [2022-11-16 12:26:38,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:26:38,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:26:38,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:38,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:26:38,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:26:38,103 INFO L87 Difference]: Start difference. First operand 2100 states and 2872 transitions. Second operand has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-16 12:26:38,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:26:38,529 INFO L93 Difference]: Finished difference Result 4192 states and 5771 transitions. [2022-11-16 12:26:38,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:26:38,530 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) Word has length 203 [2022-11-16 12:26:38,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:26:38,556 INFO L225 Difference]: With dead ends: 4192 [2022-11-16 12:26:38,557 INFO L226 Difference]: Without dead ends: 2105 [2022-11-16 12:26:38,563 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 266 GetRequests, 252 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=170, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:26:38,565 INFO L413 NwaCegarLoop]: 709 mSDtfsCounter, 6 mSDsluCounter, 2820 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 3529 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:26:38,566 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 3529 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:26:38,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2105 states. [2022-11-16 12:26:38,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2105 to 2105. [2022-11-16 12:26:38,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2105 states, 1531 states have (on average 1.3239712606139777) internal successors, (2027), 1554 states have internal predecessors, (2027), 416 states have call successors, (416), 152 states have call predecessors, (416), 157 states have return successors, (434), 418 states have call predecessors, (434), 414 states have call successors, (434) [2022-11-16 12:26:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2105 states to 2105 states and 2877 transitions. [2022-11-16 12:26:38,835 INFO L78 Accepts]: Start accepts. Automaton has 2105 states and 2877 transitions. Word has length 203 [2022-11-16 12:26:38,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:26:38,835 INFO L495 AbstractCegarLoop]: Abstraction has 2105 states and 2877 transitions. [2022-11-16 12:26:38,836 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 19.0) internal successors, (95), 6 states have internal predecessors, (95), 3 states have call successors, (23), 2 states have call predecessors, (23), 4 states have return successors, (19), 3 states have call predecessors, (19), 3 states have call successors, (19) [2022-11-16 12:26:38,836 INFO L276 IsEmpty]: Start isEmpty. Operand 2105 states and 2877 transitions. [2022-11-16 12:26:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2022-11-16 12:26:38,842 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:26:38,842 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:26:38,858 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:26:39,051 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-11-16 12:26:39,052 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:26:39,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:26:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1170975090, now seen corresponding path program 1 times [2022-11-16 12:26:39,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:26:39,053 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427328516] [2022-11-16 12:26:39,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:39,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:26:39,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:26:39,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:39,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:26:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:39,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:26:39,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,701 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:39,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,706 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:26:39,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:39,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:26:39,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:26:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:26:39,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:26:39,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:39,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:39,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2022-11-16 12:26:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:40,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2022-11-16 12:26:40,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2022-11-16 12:26:40,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:26:40,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:26:40,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2022-11-16 12:26:40,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2022-11-16 12:26:40,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 12:26:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:40,286 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-16 12:26:40,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:26:40,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427328516] [2022-11-16 12:26:40,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427328516] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:26:40,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381161905] [2022-11-16 12:26:40,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:26:40,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:26:40,288 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:26:40,289 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:26:40,311 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-16 12:26:41,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:26:41,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 2277 conjuncts, 15 conjunts are in the unsatisfiable core [2022-11-16 12:26:41,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:26:41,564 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 36 proven. 1 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-16 12:26:41,564 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:26:42,270 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 239 trivial. 0 not checked. [2022-11-16 12:26:42,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381161905] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:26:42,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:26:42,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 18 [2022-11-16 12:26:42,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574666666] [2022-11-16 12:26:42,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:26:42,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-16 12:26:42,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:26:42,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-16 12:26:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:26:42,276 INFO L87 Difference]: Start difference. First operand 2105 states and 2877 transitions. Second operand has 18 states, 16 states have (on average 8.5625) internal successors, (137), 13 states have internal predecessors, (137), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:26:48,645 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:50,650 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:55,558 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:26:57,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:00,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:00,215 INFO L93 Difference]: Finished difference Result 4709 states and 6538 transitions. [2022-11-16 12:27:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-11-16 12:27:00,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 13 states have internal predecessors, (137), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 205 [2022-11-16 12:27:00,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:00,227 INFO L225 Difference]: With dead ends: 4709 [2022-11-16 12:27:00,227 INFO L226 Difference]: Without dead ends: 2617 [2022-11-16 12:27:00,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 482 GetRequests, 455 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=143, Invalid=613, Unknown=0, NotChecked=0, Total=756 [2022-11-16 12:27:00,235 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 721 mSDsluCounter, 5692 mSDsCounter, 0 mSdLazyCounter, 2949 mSolverCounterSat, 605 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 744 SdHoareTripleChecker+Valid, 6280 SdHoareTripleChecker+Invalid, 3558 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 605 IncrementalHoareTripleChecker+Valid, 2949 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.0s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:00,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [744 Valid, 6280 Invalid, 3558 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [605 Valid, 2949 Invalid, 4 Unknown, 0 Unchecked, 17.0s Time] [2022-11-16 12:27:00,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2617 states. [2022-11-16 12:27:00,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2617 to 2115. [2022-11-16 12:27:00,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2115 states, 1539 states have (on average 1.322287199480182) internal successors, (2035), 1562 states have internal predecessors, (2035), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:27:00,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2115 states to 2115 states and 2887 transitions. [2022-11-16 12:27:00,492 INFO L78 Accepts]: Start accepts. Automaton has 2115 states and 2887 transitions. Word has length 205 [2022-11-16 12:27:00,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:00,492 INFO L495 AbstractCegarLoop]: Abstraction has 2115 states and 2887 transitions. [2022-11-16 12:27:00,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 8.5625) internal successors, (137), 13 states have internal predecessors, (137), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:27:00,493 INFO L276 IsEmpty]: Start isEmpty. Operand 2115 states and 2887 transitions. [2022-11-16 12:27:00,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2022-11-16 12:27:00,498 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:00,499 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:00,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-11-16 12:27:00,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-11-16 12:27:00,711 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:27:00,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:00,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1018999593, now seen corresponding path program 1 times [2022-11-16 12:27:00,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:00,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931953878] [2022-11-16 12:27:00,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:00,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:00,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:27:01,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:27:01,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:27:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:27:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:27:01,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:27:01,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:01,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:27:01,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2022-11-16 12:27:01,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:01,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:01,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2022-11-16 12:27:01,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2022-11-16 12:27:02,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:02,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:27:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2022-11-16 12:27:02,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2022-11-16 12:27:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 12:27:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-16 12:27:02,095 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:02,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931953878] [2022-11-16 12:27:02,095 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931953878] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:02,095 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550577123] [2022-11-16 12:27:02,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:02,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:27:02,096 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:27:02,097 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:27:02,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-16 12:27:03,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:03,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 2293 conjuncts, 13 conjunts are in the unsatisfiable core [2022-11-16 12:27:03,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:03,288 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 41 proven. 3 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-16 12:27:03,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:03,921 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2022-11-16 12:27:03,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550577123] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:03,921 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:27:03,922 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 8] total 21 [2022-11-16 12:27:03,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619235688] [2022-11-16 12:27:03,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:03,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 12:27:03,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:03,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 12:27:03,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=357, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:27:03,930 INFO L87 Difference]: Start difference. First operand 2115 states and 2887 transitions. Second operand has 21 states, 19 states have (on average 7.315789473684211) internal successors, (139), 16 states have internal predecessors, (139), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:27:09,964 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:14,417 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:16,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:16,719 INFO L93 Difference]: Finished difference Result 4722 states and 6550 transitions. [2022-11-16 12:27:16,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-11-16 12:27:16,720 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 7.315789473684211) internal successors, (139), 16 states have internal predecessors, (139), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 206 [2022-11-16 12:27:16,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:16,728 INFO L225 Difference]: With dead ends: 4722 [2022-11-16 12:27:16,728 INFO L226 Difference]: Without dead ends: 2622 [2022-11-16 12:27:16,735 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 455 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=171, Invalid=821, Unknown=0, NotChecked=0, Total=992 [2022-11-16 12:27:16,735 INFO L413 NwaCegarLoop]: 590 mSDtfsCounter, 819 mSDsluCounter, 5419 mSDsCounter, 0 mSdLazyCounter, 2749 mSolverCounterSat, 640 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 6009 SdHoareTripleChecker+Invalid, 3391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 2749 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:16,736 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 6009 Invalid, 3391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [640 Valid, 2749 Invalid, 2 Unknown, 0 Unchecked, 11.9s Time] [2022-11-16 12:27:16,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2622 states. [2022-11-16 12:27:16,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2622 to 2120. [2022-11-16 12:27:16,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2120 states, 1544 states have (on average 1.3212435233160622) internal successors, (2040), 1567 states have internal predecessors, (2040), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:27:16,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2120 states to 2120 states and 2892 transitions. [2022-11-16 12:27:16,949 INFO L78 Accepts]: Start accepts. Automaton has 2120 states and 2892 transitions. Word has length 206 [2022-11-16 12:27:16,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:16,950 INFO L495 AbstractCegarLoop]: Abstraction has 2120 states and 2892 transitions. [2022-11-16 12:27:16,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 7.315789473684211) internal successors, (139), 16 states have internal predecessors, (139), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:27:16,950 INFO L276 IsEmpty]: Start isEmpty. Operand 2120 states and 2892 transitions. [2022-11-16 12:27:16,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2022-11-16 12:27:16,956 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:16,956 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:16,976 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:17,176 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-11-16 12:27:17,176 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:27:17,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:17,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1344075406, now seen corresponding path program 2 times [2022-11-16 12:27:17,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:17,177 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268769027] [2022-11-16 12:27:17,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:17,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:17,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:27:17,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:17,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:27:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:17,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:27:17,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:17,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:17,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:27:17,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:17,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:27:17,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:17,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:27:17,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:17,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:17,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:17,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:27:17,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-11-16 12:27:18,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:18,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2022-11-16 12:27:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2022-11-16 12:27:18,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:18,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:27:18,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2022-11-16 12:27:18,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2022-11-16 12:27:18,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-16 12:27:18,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:18,618 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-16 12:27:18,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:18,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268769027] [2022-11-16 12:27:18,619 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268769027] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:18,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461992171] [2022-11-16 12:27:18,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:27:18,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:27:18,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:27:18,621 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:27:18,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-16 12:27:19,603 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:27:19,603 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:27:19,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 2337 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 12:27:19,617 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:19,996 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 34 proven. 21 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2022-11-16 12:27:19,997 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:20,846 INFO L134 CoverageAnalysis]: Checked inductivity of 272 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 244 trivial. 0 not checked. [2022-11-16 12:27:20,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461992171] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:20,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:27:20,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 25 [2022-11-16 12:27:20,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948728638] [2022-11-16 12:27:20,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:20,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:27:20,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:20,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:27:20,849 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=520, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:27:20,849 INFO L87 Difference]: Start difference. First operand 2120 states and 2892 transitions. Second operand has 25 states, 23 states have (on average 6.086956521739131) internal successors, (140), 20 states have internal predecessors, (140), 4 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:27:28,062 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:30,066 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:35,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:37,390 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:40,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:27:40,475 INFO L93 Difference]: Finished difference Result 4732 states and 6560 transitions. [2022-11-16 12:27:40,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-16 12:27:40,475 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.086956521739131) internal successors, (140), 20 states have internal predecessors, (140), 4 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) Word has length 209 [2022-11-16 12:27:40,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:27:40,485 INFO L225 Difference]: With dead ends: 4732 [2022-11-16 12:27:40,485 INFO L226 Difference]: Without dead ends: 2627 [2022-11-16 12:27:40,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 495 GetRequests, 457 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 271 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=210, Invalid=1196, Unknown=0, NotChecked=0, Total=1406 [2022-11-16 12:27:40,492 INFO L413 NwaCegarLoop]: 588 mSDtfsCounter, 422 mSDsluCounter, 8474 mSDsCounter, 0 mSdLazyCounter, 4301 mSolverCounterSat, 318 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 9062 SdHoareTripleChecker+Invalid, 4623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 318 IncrementalHoareTripleChecker+Valid, 4301 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 18.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:27:40,493 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 9062 Invalid, 4623 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [318 Valid, 4301 Invalid, 4 Unknown, 0 Unchecked, 18.7s Time] [2022-11-16 12:27:40,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2627 states. [2022-11-16 12:27:40,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2627 to 2125. [2022-11-16 12:27:40,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2125 states, 1549 states have (on average 1.3202065848934796) internal successors, (2045), 1572 states have internal predecessors, (2045), 417 states have call successors, (417), 153 states have call predecessors, (417), 158 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:27:40,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2125 states to 2125 states and 2897 transitions. [2022-11-16 12:27:40,717 INFO L78 Accepts]: Start accepts. Automaton has 2125 states and 2897 transitions. Word has length 209 [2022-11-16 12:27:40,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:27:40,718 INFO L495 AbstractCegarLoop]: Abstraction has 2125 states and 2897 transitions. [2022-11-16 12:27:40,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.086956521739131) internal successors, (140), 20 states have internal predecessors, (140), 4 states have call successors, (45), 7 states have call predecessors, (45), 7 states have return successors, (31), 5 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:27:40,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2125 states and 2897 transitions. [2022-11-16 12:27:40,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-11-16 12:27:40,723 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:27:40,723 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:27:40,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:27:40,934 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:27:40,934 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:27:40,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:27:40,935 INFO L85 PathProgramCache]: Analyzing trace with hash 1464034055, now seen corresponding path program 1 times [2022-11-16 12:27:40,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:27:40,935 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33754282] [2022-11-16 12:27:40,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:40,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:27:41,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:27:41,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:27:41,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:41,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:27:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:27:41,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:41,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:27:41,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:41,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:27:41,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:27:41,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:27:41,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:41,885 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:41,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2022-11-16 12:27:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:42,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2022-11-16 12:27:42,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:27:42,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:27:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:27:42,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2022-11-16 12:27:42,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2022-11-16 12:27:42,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 198 [2022-11-16 12:27:42,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:42,570 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:27:42,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:27:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33754282] [2022-11-16 12:27:42,570 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33754282] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:27:42,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [706135116] [2022-11-16 12:27:42,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:27:42,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:27:42,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:27:42,572 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:27:42,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-11-16 12:27:43,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:27:43,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 2304 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:27:43,711 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:27:44,128 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 57 proven. 10 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-16 12:27:44,128 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:27:45,139 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:27:45,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [706135116] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:27:45,139 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:27:45,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 10, 10] total 25 [2022-11-16 12:27:45,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845377052] [2022-11-16 12:27:45,140 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:27:45,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-11-16 12:27:45,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:27:45,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-11-16 12:27:45,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=522, Unknown=0, NotChecked=0, Total=600 [2022-11-16 12:27:45,143 INFO L87 Difference]: Start difference. First operand 2125 states and 2897 transitions. Second operand has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:27:53,046 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:27:55,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:28:00,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:00,585 INFO L93 Difference]: Finished difference Result 4790 states and 6625 transitions. [2022-11-16 12:28:00,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-11-16 12:28:00,586 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 210 [2022-11-16 12:28:00,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:00,595 INFO L225 Difference]: With dead ends: 4790 [2022-11-16 12:28:00,595 INFO L226 Difference]: Without dead ends: 2685 [2022-11-16 12:28:00,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 459 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=361, Invalid=1991, Unknown=0, NotChecked=0, Total=2352 [2022-11-16 12:28:00,603 INFO L413 NwaCegarLoop]: 589 mSDtfsCounter, 564 mSDsluCounter, 6091 mSDsCounter, 0 mSdLazyCounter, 3268 mSolverCounterSat, 458 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 587 SdHoareTripleChecker+Valid, 6680 SdHoareTripleChecker+Invalid, 3728 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 458 IncrementalHoareTripleChecker+Valid, 3268 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:00,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [587 Valid, 6680 Invalid, 3728 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [458 Valid, 3268 Invalid, 2 Unknown, 0 Unchecked, 13.5s Time] [2022-11-16 12:28:00,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2685 states. [2022-11-16 12:28:00,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2685 to 2183. [2022-11-16 12:28:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2183 states, 1601 states have (on average 1.3141786383510305) internal successors, (2104), 1624 states have internal predecessors, (2104), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:28:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2183 states to 2183 states and 2956 transitions. [2022-11-16 12:28:00,867 INFO L78 Accepts]: Start accepts. Automaton has 2183 states and 2956 transitions. Word has length 210 [2022-11-16 12:28:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:00,867 INFO L495 AbstractCegarLoop]: Abstraction has 2183 states and 2956 transitions. [2022-11-16 12:28:00,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 23 states have (on average 6.217391304347826) internal successors, (143), 20 states have internal predecessors, (143), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:28:00,868 INFO L276 IsEmpty]: Start isEmpty. Operand 2183 states and 2956 transitions. [2022-11-16 12:28:00,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2022-11-16 12:28:00,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:00,873 INFO L195 NwaCegarLoop]: trace histogram [9, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:00,884 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:01,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-11-16 12:28:01,085 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:01,085 INFO L85 PathProgramCache]: Analyzing trace with hash -651837395, now seen corresponding path program 2 times [2022-11-16 12:28:01,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:01,086 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580060166] [2022-11-16 12:28:01,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:01,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:28:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:01,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,814 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:28:01,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:01,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:01,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:28:01,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:28:01,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:01,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:28:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:01,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:28:01,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:01,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:01,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:28:01,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:02,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2022-11-16 12:28:02,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2022-11-16 12:28:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2022-11-16 12:28:02,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:02,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:28:02,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2022-11-16 12:28:02,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2022-11-16 12:28:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2022-11-16 12:28:02,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:02,843 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:28:02,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:02,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580060166] [2022-11-16 12:28:02,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580060166] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:02,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416576644] [2022-11-16 12:28:02,844 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:28:02,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:02,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:02,846 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:02,867 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-11-16 12:28:04,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:28:04,676 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:04,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 2368 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-16 12:28:04,691 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:05,130 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 62 proven. 15 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-16 12:28:05,131 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:28:06,324 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416576644] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:06,324 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:28:06,325 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 11] total 27 [2022-11-16 12:28:06,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498109546] [2022-11-16 12:28:06,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:06,326 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-11-16 12:28:06,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:06,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-11-16 12:28:06,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=613, Unknown=0, NotChecked=0, Total=702 [2022-11-16 12:28:06,327 INFO L87 Difference]: Start difference. First operand 2183 states and 2956 transitions. Second operand has 27 states, 25 states have (on average 5.8) internal successors, (145), 22 states have internal predecessors, (145), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:28:15,182 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:28:18,092 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:28:23,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:28:23,131 INFO L93 Difference]: Finished difference Result 4870 states and 6699 transitions. [2022-11-16 12:28:23,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 12:28:23,131 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 5.8) internal successors, (145), 22 states have internal predecessors, (145), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 211 [2022-11-16 12:28:23,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:28:23,141 INFO L225 Difference]: With dead ends: 4870 [2022-11-16 12:28:23,141 INFO L226 Difference]: Without dead ends: 2695 [2022-11-16 12:28:23,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 460 SyntacticMatches, 3 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=419, Invalid=2443, Unknown=0, NotChecked=0, Total=2862 [2022-11-16 12:28:23,148 INFO L413 NwaCegarLoop]: 574 mSDtfsCounter, 774 mSDsluCounter, 6580 mSDsCounter, 0 mSdLazyCounter, 3610 mSolverCounterSat, 640 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 7154 SdHoareTripleChecker+Invalid, 4252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 640 IncrementalHoareTripleChecker+Valid, 3610 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:28:23,149 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 7154 Invalid, 4252 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [640 Valid, 3610 Invalid, 2 Unknown, 0 Unchecked, 14.5s Time] [2022-11-16 12:28:23,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2695 states. [2022-11-16 12:28:23,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2695 to 2193. [2022-11-16 12:28:23,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2193 states, 1611 states have (on average 1.3122284295468654) internal successors, (2114), 1634 states have internal predecessors, (2114), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:28:23,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2193 states to 2193 states and 2966 transitions. [2022-11-16 12:28:23,421 INFO L78 Accepts]: Start accepts. Automaton has 2193 states and 2966 transitions. Word has length 211 [2022-11-16 12:28:23,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:28:23,422 INFO L495 AbstractCegarLoop]: Abstraction has 2193 states and 2966 transitions. [2022-11-16 12:28:23,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 5.8) internal successors, (145), 22 states have internal predecessors, (145), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:28:23,422 INFO L276 IsEmpty]: Start isEmpty. Operand 2193 states and 2966 transitions. [2022-11-16 12:28:23,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2022-11-16 12:28:23,427 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:28:23,427 INFO L195 NwaCegarLoop]: trace histogram [10, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:28:23,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:28:23,648 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-11-16 12:28:23,648 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:28:23,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:28:23,649 INFO L85 PathProgramCache]: Analyzing trace with hash 254591879, now seen corresponding path program 2 times [2022-11-16 12:28:23,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:28:23,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805112816] [2022-11-16 12:28:23,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:28:23,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:28:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:28:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:24,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:28:24,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:24,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:28:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:24,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:28:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:24,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:28:24,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:28:24,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:28:24,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:28:24,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:24,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:24,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2022-11-16 12:28:25,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:25,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2022-11-16 12:28:25,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:28:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:28:25,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:28:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2022-11-16 12:28:25,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2022-11-16 12:28:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2022-11-16 12:28:25,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:28:25,478 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:28:25,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:28:25,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805112816] [2022-11-16 12:28:25,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805112816] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:28:25,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [135612233] [2022-11-16 12:28:25,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:28:25,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:28:25,479 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:28:25,483 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:28:25,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-16 12:28:26,772 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:28:26,772 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:28:26,781 INFO L263 TraceCheckSpWp]: Trace formula consists of 2334 conjuncts, 29 conjunts are in the unsatisfiable core [2022-11-16 12:28:26,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:28:27,932 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 67 proven. 21 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-16 12:28:27,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:28:30,427 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:28:30,427 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [135612233] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:28:30,428 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:28:30,428 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12, 12] total 29 [2022-11-16 12:28:30,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256093991] [2022-11-16 12:28:30,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:28:30,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-11-16 12:28:30,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:28:30,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-11-16 12:28:30,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=731, Unknown=0, NotChecked=0, Total=812 [2022-11-16 12:28:30,430 INFO L87 Difference]: Start difference. First operand 2193 states and 2966 transitions. Second operand has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:28:45,392 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:28:47,398 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:28:50,854 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:28:52,863 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:29:00,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:00,978 INFO L93 Difference]: Finished difference Result 4890 states and 6719 transitions. [2022-11-16 12:29:00,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-11-16 12:29:00,979 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 212 [2022-11-16 12:29:00,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:01,018 INFO L225 Difference]: With dead ends: 4890 [2022-11-16 12:29:01,018 INFO L226 Difference]: Without dead ends: 2705 [2022-11-16 12:29:01,025 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 518 GetRequests, 461 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=335, Invalid=2745, Unknown=0, NotChecked=0, Total=3080 [2022-11-16 12:29:01,026 INFO L413 NwaCegarLoop]: 573 mSDtfsCounter, 445 mSDsluCounter, 9839 mSDsCounter, 0 mSdLazyCounter, 5311 mSolverCounterSat, 323 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 24.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 468 SdHoareTripleChecker+Valid, 10412 SdHoareTripleChecker+Invalid, 5638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 323 IncrementalHoareTripleChecker+Valid, 5311 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:01,026 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [468 Valid, 10412 Invalid, 5638 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [323 Valid, 5311 Invalid, 4 Unknown, 0 Unchecked, 26.2s Time] [2022-11-16 12:29:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2705 states. [2022-11-16 12:29:01,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2705 to 2203. [2022-11-16 12:29:01,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2203 states, 1621 states have (on average 1.310302282541641) internal successors, (2124), 1644 states have internal predecessors, (2124), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:29:01,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2203 states to 2203 states and 2976 transitions. [2022-11-16 12:29:01,360 INFO L78 Accepts]: Start accepts. Automaton has 2203 states and 2976 transitions. Word has length 212 [2022-11-16 12:29:01,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:01,361 INFO L495 AbstractCegarLoop]: Abstraction has 2203 states and 2976 transitions. [2022-11-16 12:29:01,361 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 5.444444444444445) internal successors, (147), 24 states have internal predecessors, (147), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:29:01,361 INFO L276 IsEmpty]: Start isEmpty. Operand 2203 states and 2976 transitions. [2022-11-16 12:29:01,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 12:29:01,374 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:01,374 INFO L195 NwaCegarLoop]: trace histogram [11, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:01,391 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:01,586 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-11-16 12:29:01,586 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:29:01,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:01,587 INFO L85 PathProgramCache]: Analyzing trace with hash -465210890, now seen corresponding path program 3 times [2022-11-16 12:29:01,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:01,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976916467] [2022-11-16 12:29:01,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:01,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:29:02,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:29:02,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2022-11-16 12:29:02,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:29:02,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-11-16 12:29:02,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:29:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-11-16 12:29:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:29:02,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2022-11-16 12:29:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:29:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-11-16 12:29:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-11-16 12:29:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2022-11-16 12:29:02,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:02,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:02,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,392 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2022-11-16 12:29:03,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2022-11-16 12:29:03,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2022-11-16 12:29:03,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2022-11-16 12:29:03,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-16 12:29:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2022-11-16 12:29:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2022-11-16 12:29:03,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2022-11-16 12:29:03,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:29:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:29:03,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 12:29:03,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976916467] [2022-11-16 12:29:03,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976916467] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-16 12:29:03,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625373042] [2022-11-16 12:29:03,558 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:29:03,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:29:03,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:29:03,559 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-16 12:29:03,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-11-16 12:29:13,884 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-11-16 12:29:13,884 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:29:13,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 2412 conjuncts, 23 conjunts are in the unsatisfiable core [2022-11-16 12:29:13,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:29:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 72 proven. 28 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-16 12:29:14,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:29:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2022-11-16 12:29:15,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625373042] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:29:15,782 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-16 12:29:15,783 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13, 13] total 31 [2022-11-16 12:29:15,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738998743] [2022-11-16 12:29:15,783 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-16 12:29:15,784 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-11-16 12:29:15,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 12:29:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-11-16 12:29:15,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=816, Unknown=0, NotChecked=0, Total=930 [2022-11-16 12:29:15,785 INFO L87 Difference]: Start difference. First operand 2203 states and 2976 transitions. Second operand has 31 states, 29 states have (on average 5.172413793103448) internal successors, (150), 26 states have internal predecessors, (150), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:29:26,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:29:29,275 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:29:35,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:29:35,656 INFO L93 Difference]: Finished difference Result 4910 states and 6739 transitions. [2022-11-16 12:29:35,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-11-16 12:29:35,657 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 29 states have (on average 5.172413793103448) internal successors, (150), 26 states have internal predecessors, (150), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) Word has length 214 [2022-11-16 12:29:35,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:29:35,667 INFO L225 Difference]: With dead ends: 4910 [2022-11-16 12:29:35,667 INFO L226 Difference]: Without dead ends: 2715 [2022-11-16 12:29:35,673 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 527 GetRequests, 464 SyntacticMatches, 3 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=513, Invalid=3269, Unknown=0, NotChecked=0, Total=3782 [2022-11-16 12:29:35,674 INFO L413 NwaCegarLoop]: 585 mSDtfsCounter, 683 mSDsluCounter, 8916 mSDsCounter, 0 mSdLazyCounter, 4742 mSolverCounterSat, 490 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 706 SdHoareTripleChecker+Valid, 9501 SdHoareTripleChecker+Invalid, 5234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 490 IncrementalHoareTripleChecker+Valid, 4742 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:29:35,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [706 Valid, 9501 Invalid, 5234 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [490 Valid, 4742 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2022-11-16 12:29:35,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2715 states. [2022-11-16 12:29:35,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2715 to 2213. [2022-11-16 12:29:35,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2213 states, 1631 states have (on average 1.3083997547516861) internal successors, (2134), 1654 states have internal predecessors, (2134), 417 states have call successors, (417), 159 states have call predecessors, (417), 164 states have return successors, (435), 419 states have call predecessors, (435), 415 states have call successors, (435) [2022-11-16 12:29:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2213 states to 2213 states and 2986 transitions. [2022-11-16 12:29:35,964 INFO L78 Accepts]: Start accepts. Automaton has 2213 states and 2986 transitions. Word has length 214 [2022-11-16 12:29:35,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:29:35,964 INFO L495 AbstractCegarLoop]: Abstraction has 2213 states and 2986 transitions. [2022-11-16 12:29:35,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 29 states have (on average 5.172413793103448) internal successors, (150), 26 states have internal predecessors, (150), 4 states have call successors, (47), 7 states have call predecessors, (47), 6 states have return successors, (31), 4 states have call predecessors, (31), 4 states have call successors, (31) [2022-11-16 12:29:35,965 INFO L276 IsEmpty]: Start isEmpty. Operand 2213 states and 2986 transitions. [2022-11-16 12:29:35,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 12:29:35,970 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:29:35,970 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:35,995 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:29:36,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-16 12:29:36,196 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:29:36,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:29:36,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1916797959, now seen corresponding path program 3 times [2022-11-16 12:29:36,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 12:29:36,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [238765032] [2022-11-16 12:29:36,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:29:36,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 12:29:36,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:29:36,790 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 12:29:37,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:29:37,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 12:29:37,500 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 12:29:37,501 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-16 12:29:37,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-16 12:29:37,507 INFO L444 BasicCegarLoop]: Path program histogram: [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:29:37,512 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 12:29:37,570 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-16 12:29:37,572 WARN L421 cessorBacktranslator]: Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) [2022-11-16 12:29:37,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 12:29:37 BoogieIcfgContainer [2022-11-16 12:29:37,739 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 12:29:37,739 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 12:29:37,739 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 12:29:37,740 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 12:29:37,740 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:23:22" (3/4) ... [2022-11-16 12:29:37,745 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 12:29:37,745 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 12:29:37,746 INFO L158 Benchmark]: Toolchain (without parser) took 392965.77ms. Allocated memory was 121.6MB in the beginning and 704.6MB in the end (delta: 583.0MB). Free memory was 73.4MB in the beginning and 400.6MB in the end (delta: -327.2MB). Peak memory consumption was 255.5MB. Max. memory is 16.1GB. [2022-11-16 12:29:37,746 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:29:37,746 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1885.20ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 73.2MB in the beginning and 69.7MB in the end (delta: 3.5MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. [2022-11-16 12:29:37,747 INFO L158 Benchmark]: Boogie Procedure Inliner took 253.75ms. Allocated memory is still 153.1MB. Free memory was 69.7MB in the beginning and 88.1MB in the end (delta: -18.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-11-16 12:29:37,749 INFO L158 Benchmark]: Boogie Preprocessor took 251.00ms. Allocated memory is still 153.1MB. Free memory was 88.1MB in the beginning and 67.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-16 12:29:37,754 INFO L158 Benchmark]: RCFGBuilder took 15267.31ms. Allocated memory was 153.1MB in the beginning and 587.2MB in the end (delta: 434.1MB). Free memory was 67.1MB in the beginning and 231.0MB in the end (delta: -163.9MB). Peak memory consumption was 338.4MB. Max. memory is 16.1GB. [2022-11-16 12:29:37,754 INFO L158 Benchmark]: TraceAbstraction took 375292.64ms. Allocated memory was 587.2MB in the beginning and 704.6MB in the end (delta: 117.4MB). Free memory was 229.9MB in the beginning and 400.6MB in the end (delta: -170.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:29:37,755 INFO L158 Benchmark]: Witness Printer took 5.87ms. Allocated memory is still 704.6MB. Free memory is still 400.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 12:29:37,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 121.6MB. Free memory is still 99.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1885.20ms. Allocated memory was 121.6MB in the beginning and 153.1MB in the end (delta: 31.5MB). Free memory was 73.2MB in the beginning and 69.7MB in the end (delta: 3.5MB). Peak memory consumption was 61.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 253.75ms. Allocated memory is still 153.1MB. Free memory was 69.7MB in the beginning and 88.1MB in the end (delta: -18.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 251.00ms. Allocated memory is still 153.1MB. Free memory was 88.1MB in the beginning and 67.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * RCFGBuilder took 15267.31ms. Allocated memory was 153.1MB in the beginning and 587.2MB in the end (delta: 434.1MB). Free memory was 67.1MB in the beginning and 231.0MB in the end (delta: -163.9MB). Peak memory consumption was 338.4MB. Max. memory is 16.1GB. * TraceAbstraction took 375292.64ms. Allocated memory was 587.2MB in the beginning and 704.6MB in the end (delta: 117.4MB). Free memory was 229.9MB in the beginning and 400.6MB in the end (delta: -170.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.87ms. Allocated memory is still 704.6MB. Free memory is still 400.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification free ensures #res.base == #ptr.base && #res.offset == #ptr.offset; is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 7526]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of large string literal at line 6952, overapproximation of shiftRight at line 6045, overapproximation of bitwiseAnd at line 6045. Possible FailurePath: [L6262] int LDV_IN_INTERRUPT = 1; [L6945-L6946] static struct atmdev_ops atmtcp_c_dev_ops = {0, 0, & atmtcp_c_close, 0, 0, 0, 0, & atmtcp_c_send, 0, 0, 0, 0, 0, 0}; [L6947-L7055] static struct atm_dev atmtcp_control_dev = {(struct atmdev_ops const *)(& atmtcp_c_dev_ops), 0, "atmtcp", 999, 0, 0, 0UL, {0, 0}, {0, 0}, {(unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, {(signed char)0, (signed char)0}, {{{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}, {{0}, {0}, {0}, {0}, {0}}}, (char)0, 0, {0}, {{{{{0}}, 3735899821U, 4294967295U, (void *)-1, {0, {0, 0}, "atmtcp_control_dev.lock", 0, 0UL}}}}, 0, 0, {0, 0, {0, {0, 0}, 0, 0, 0, 0, {{0}}, {{{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0, 0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0}, 0, 0, {{0}, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, 0, 0, {0, {0, 0}, 0, 0, 0UL}}, 0, 0, 0, 0, {{0}, (unsigned char)0, (unsigned char)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, (_Bool)0, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0U, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}}, 0, (_Bool)0, (_Bool)0, {{0, 0}, 0UL, 0, 0UL, 0U, 0, 0, 0, {(char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0, (char)0}, {0, {0, 0}, 0, 0, 0UL}}, 0UL, {{0L}, {0, 0}, 0, {0, {0, 0}, 0, 0, 0UL}}, {{{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}}, 0, {0}, {0}, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, (unsigned char)0, 0, 0, 0, 0, 0UL, 0UL, 0UL, 0UL, 0, 0, 0}, 0, 0, 0, 0, 0ULL, 0UL, 0, {0, 0}, 0, 0, {0, 0}, 0, 0, 0U, 0U, {{{{{0}}, 0U, 0U, 0, {0, {0, 0}, 0, 0, 0UL}}}}, {0, 0}, {0, {0, 0}, {{0}}}, 0, 0, 0, 0, (_Bool)0, (_Bool)0}, {0, 0}}; [L7228] int ldv_retval_0 ; [L7229] int ldv_retval_1 ; [L6265] int ref_cnt ; [L7565] int ldv_module_refcounter = 1; [L6942-L6944] static struct atmdev_ops atmtcp_v_dev_ops = {& atmtcp_v_dev_close, & atmtcp_v_open, & atmtcp_v_close, & atmtcp_v_ioctl, 0, 0, 0, & atmtcp_v_send, 0, 0, 0, 0, & atmtcp_v_proc, & __this_module}; [L6263] int ldv_state_variable_2 ; [L6261] int ldv_state_variable_3 ; [L6269] int ldv_state_variable_0 ; [L6268] int ldv_state_variable_1 ; [L6264] struct atm_vcc *atmtcp_c_dev_ops_group0 ; [L6267] struct atm_dev *atmtcp_v_dev_ops_group0 ; [L6266] struct atm_vcc *atmtcp_v_dev_ops_group1 ; [L7212] static struct atm_ioctl atmtcp_ioctl_ops = {& __this_module, & atmtcp_ioctl, {0, 0}}; VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7255] unsigned long ldvarg1 ; [L7256] struct socket *ldvarg0 ; [L7257] void *tmp ; [L7258] unsigned int ldvarg2 ; [L7259] loff_t *ldvarg7 ; [L7260] void *tmp___0 ; [L7261] void *ldvarg4 ; [L7262] void *tmp___1 ; [L7263] struct sk_buff *ldvarg3 ; [L7264] void *tmp___2 ; [L7265] unsigned int ldvarg5 ; [L7266] char *ldvarg6 ; [L7267] void *tmp___3 ; [L7268] struct sk_buff *ldvarg8 ; [L7269] void *tmp___4 ; [L7270] int tmp___5 ; [L7271] int tmp___6 ; [L7272] int tmp___7 ; [L7273] int tmp___8 ; [L7274] int tmp___9 ; VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={36893488147419103235:0}, ldvarg5={36893488147419103236:0}, ref_cnt=0] [L7276] CALL, EXPR ldv_init_zalloc(48UL) VAL [\old(size)=48, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=48, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=48] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=48, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=48, tmp={-18446744073709551617:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=48, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=48, tmp={-18446744073709551617:0}] [L6221] return (p); VAL [\old(size)=48, \result={-18446744073709551617:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-18446744073709551617:0}, ref_cnt=0, size=48, tmp={-18446744073709551617:0}] [L7276] RET, EXPR ldv_init_zalloc(48UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(48UL)={-18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg1={36893488147419103235:0}, ldvarg5={36893488147419103236:0}, ref_cnt=0] [L7276] tmp = ldv_init_zalloc(48UL) [L7277] ldvarg0 = (struct socket *)tmp VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg5={36893488147419103236:0}, ref_cnt=0, tmp={-18446744073709551617:0}] [L7278] CALL, EXPR ldv_init_zalloc(8UL) VAL [\old(size)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=8] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-36893488147419103233:0}, ref_cnt=0, size=8, tmp={-36893488147419103233:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-36893488147419103233:0}, ref_cnt=0, size=8, tmp={-36893488147419103233:0}] [L6221] return (p); VAL [\old(size)=8, \result={-36893488147419103233:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-36893488147419103233:0}, ref_cnt=0, size=8, tmp={-36893488147419103233:0}] [L7278] RET, EXPR ldv_init_zalloc(8UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(8UL)={-36893488147419103233:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg5={36893488147419103236:0}, ref_cnt=0, tmp={-18446744073709551617:0}] [L7278] tmp___0 = ldv_init_zalloc(8UL) [L7279] ldvarg7 = (loff_t *)tmp___0 VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg5={36893488147419103236:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}] [L7280] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551618:0}, ref_cnt=0, size=1, tmp={18446744073709551618:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551618:0}, ref_cnt=0, size=1, tmp={18446744073709551618:0}] [L6221] return (p); VAL [\old(size)=1, \result={18446744073709551618:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551618:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551618:0}, ref_cnt=0, size=1, tmp={18446744073709551618:0}] [L7280] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={18446744073709551618:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg5={36893488147419103236:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}] [L7280] tmp___1 = ldv_init_zalloc(1UL) [L7281] ldvarg4 = tmp___1 VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}] [L7282] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103233:0}, ref_cnt=0, size=232, tmp={36893488147419103233:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103233:0}, ref_cnt=0, size=232, tmp={36893488147419103233:0}] [L6221] return (p); VAL [\old(size)=232, \result={36893488147419103233:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={36893488147419103233:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={36893488147419103233:0}, ref_cnt=0, size=232, tmp={36893488147419103233:0}] [L7282] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={36893488147419103233:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}] [L7282] tmp___2 = ldv_init_zalloc(232UL) [L7283] ldvarg3 = (struct sk_buff *)tmp___2 VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}] [L7284] CALL, EXPR ldv_init_zalloc(1UL) VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=1] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=1, tmp={18446744073709551617:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=1, tmp={18446744073709551617:0}] [L6221] return (p); VAL [\old(size)=1, \result={18446744073709551617:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={18446744073709551617:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={18446744073709551617:0}, ref_cnt=0, size=1, tmp={18446744073709551617:0}] [L7284] RET, EXPR ldv_init_zalloc(1UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(1UL)={18446744073709551617:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}] [L7284] tmp___3 = ldv_init_zalloc(1UL) [L7285] ldvarg6 = (char *)tmp___3 VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}] [L7286] CALL, EXPR ldv_init_zalloc(232UL) VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6215] void *p ; [L6216] void *tmp ; [L6218] EXPR, FCALL calloc(1UL, size) VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, size=232] [L6218] tmp = calloc(1UL, size) [L6219] p = tmp VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654849:0}, ref_cnt=0, size=232, tmp={-55340232221128654849:0}] [L6220] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6220] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=232, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654849:0}, ref_cnt=0, size=232, tmp={-55340232221128654849:0}] [L6221] return (p); VAL [\old(size)=232, \result={-55340232221128654849:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, calloc(1UL, size)={-55340232221128654849:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-55340232221128654849:0}, ref_cnt=0, size=232, tmp={-55340232221128654849:0}] [L7286] RET, EXPR ldv_init_zalloc(232UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_init_zalloc(232UL)={-55340232221128654849:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}] [L7286] tmp___4 = ldv_init_zalloc(232UL) [L7287] ldvarg8 = (struct sk_buff *)tmp___4 [L7288] FCALL ldv_initialize() [L7289] CALL ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [\old(c)=0, \old(n)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={36893488147419103235:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={36893488147419103235:0}, s={36893488147419103235:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=8, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={36893488147419103235:0}, n=8, ref_cnt=0, s={36893488147419103235:0}, s={36893488147419103235:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=8, \result={36893488147419103235:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=8, ref_cnt=0, s={36893488147419103235:0}, s={36893488147419103235:0}, tmp={36893488147419103235:0}] [L7289] RET ldv_memset((void *)(& ldvarg1), 0, 8UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg1), 0, 8UL)={36893488147419103235:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}] [L7290] ldvarg2 = __VERIFIER_nondet_uint () [L7291] CALL ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [\old(c)=0, \old(n)=4, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, s={36893488147419103236:0}] [L6226] void *tmp ; VAL [\old(c)=0, \old(n)=4, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={36893488147419103236:0}, s={36893488147419103236:0}] [L6228] EXPR, FCALL memset(s, c, n) VAL [\old(c)=0, \old(n)=4, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, memset(s, c, n)={36893488147419103236:0}, n=4, ref_cnt=0, s={36893488147419103236:0}, s={36893488147419103236:0}] [L6228] tmp = memset(s, c, n) [L6229] return (tmp); VAL [\old(c)=0, \old(n)=4, \result={36893488147419103236:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, n=4, ref_cnt=0, s={36893488147419103236:0}, s={36893488147419103236:0}, tmp={36893488147419103236:0}] [L7291] RET ldv_memset((void *)(& ldvarg5), 0, 4UL) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_memset((void *)(& ldvarg5), 0, 4UL)={36893488147419103236:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=0, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}] [L7292] ldv_state_variable_1 = 0 [L7293] ref_cnt = 0 [L7294] ldv_state_variable_0 = 1 [L7295] ldv_state_variable_3 = 0 [L7296] ldv_state_variable_2 = 0 VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: [L7318] case 1: VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}, tmp___5=1] [L7319] COND TRUE ldv_state_variable_0 != 0 [L7320] tmp___7 = __VERIFIER_nondet_int() [L7322] case 0: [L7330] case 1: VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}, tmp___5=1, tmp___7=1] [L7331] COND TRUE ldv_state_variable_0 == 1 [L7332] CALL, EXPR atmtcp_init() [L7216] FCALL register_atm_ioctl(& atmtcp_ioctl_ops) [L7217] return (0); VAL [\result=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=1, ldv_state_variable_1=0, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7332] RET, EXPR atmtcp_init() [L7332] ldv_retval_0 = atmtcp_init() [L7333] COND TRUE ldv_retval_0 == 0 [L7334] ldv_state_variable_0 = 3 [L7335] ldv_state_variable_1 = 1 VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}, tmp___5=1, tmp___7=1] [L7338] COND FALSE !(ldv_retval_0 != 0) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}, tmp___5=1, tmp___7=1] [L7298] tmp___5 = __VERIFIER_nondet_int() [L7300] case 0: VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}, tmp___5=0, tmp___7=1] [L7301] COND TRUE ldv_state_variable_1 != 0 [L7302] tmp___6 = __VERIFIER_nondet_int() [L7304] case 0: VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ldvarg0={-18446744073709551617:0}, ldvarg1={36893488147419103235:0}, ldvarg2=24975, ldvarg3={36893488147419103233:0}, ldvarg4={18446744073709551618:0}, ldvarg5={36893488147419103236:0}, ldvarg6={18446744073709551617:0}, ldvarg7={-36893488147419103233:0}, ldvarg8={-55340232221128654849:0}, ref_cnt=0, tmp={-18446744073709551617:0}, tmp___0={-36893488147419103233:0}, tmp___1={18446744073709551618:0}, tmp___2={36893488147419103233:0}, tmp___3={18446744073709551617:0}, tmp___4={-55340232221128654849:0}, tmp___5=0, tmp___6=0, tmp___7=1] [L7305] COND TRUE ldv_state_variable_1 == 1 [L7306] EXPR \read(ldvarg1) [L7306] CALL atmtcp_ioctl(ldvarg0, ldvarg2, ldvarg1) [L7169] int err ; [L7170] struct atm_vcc *vcc ; [L7171] struct atm_vcc *tmp ; [L7172] bool tmp___0 ; [L7173] int tmp___1 ; [L7175] err = 0 [L7176] CALL, EXPR ATM_SD(sock) [L6342] struct atm_vcc *tmp ; [L6344] EXPR sock->sk VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, sock->sk={36893488147419103240:36893488147419103237}] [L6344] CALL, EXPR atm_sk(sock->sk) VAL [__this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={36893488147419103240:36893488147419103237}] [L6337] return ((struct atm_vcc *)sk); VAL [\result={36893488147419103240:36893488147419103237}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sk={36893488147419103240:36893488147419103237}, sk={36893488147419103240:36893488147419103237}] [L6344] RET, EXPR atm_sk(sock->sk) VAL [__this_module={26:-25}, atm_sk(sock->sk)={36893488147419103240:36893488147419103237}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, sock->sk={36893488147419103240:36893488147419103237}] [L6344] tmp = atm_sk(sock->sk) [L6345] return (tmp); VAL [\result={36893488147419103240:36893488147419103237}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, tmp={36893488147419103240:36893488147419103237}] [L7176] RET, EXPR ATM_SD(sock) [L7176] tmp = ATM_SD(sock) [L7177] vcc = tmp VAL [\old(arg)=0, \old(cmd)=24975, __this_module={26:-25}, arg=0, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24975, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, tmp={36893488147419103240:36893488147419103237}, vcc={36893488147419103240:36893488147419103237}] [L7178] COND FALSE !((cmd != 24960U && cmd != 24974U) && cmd != 24975U) [L7182] CALL, EXPR capable(12) [L7680] return __VERIFIER_nondet_bool(); [L7182] RET, EXPR capable(12) [L7182] tmp___0 = capable(12) [L7183] COND TRUE \read(tmp___0) [L7184] tmp___1 = 0 VAL [\old(arg)=0, \old(cmd)=24975, __this_module={26:-25}, arg=0, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cmd=24975, err=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, sock={-18446744073709551617:0}, sock={-18446744073709551617:0}, tmp={36893488147419103240:36893488147419103237}, tmp___0=1, tmp___1=0, vcc={36893488147419103240:36893488147419103237}] [L7188] COND FALSE !(\read(tmp___1)) [L7193] case 24960U: [L7201] case 24974U: [L7204] case 24975U: [L7205] CALL atmtcp_remove_persistent((int )arg) [L7138] struct atm_dev *dev ; [L7139] struct atmtcp_dev_data *dev_data ; VAL [\old(itf)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7141] CALL, EXPR atm_dev_lookup(itf) VAL [\old(arg0)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] CALL, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(size)=1598, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6181] void *p ; [L6182] void *tmp ; [L6183] int tmp___0 ; [L6185] tmp___0 = __VERIFIER_nondet_int() [L6186] COND FALSE !(tmp___0 != 0) [L6189] tmp = malloc(size) [L6190] p = tmp VAL [\old(size)=1598, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:0}, ref_cnt=0, size=1598, tmp={-73786976294838206465:0}, tmp___0=0] [L6191] CALL assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6177] COND FALSE !(!cond) VAL [\old(cond)=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, cond=1, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6191] RET assume_abort_if_not((unsigned long )p != (unsigned long )((void *)0)) VAL [\old(size)=1598, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:0}, ref_cnt=0, size=1598, tmp={-73786976294838206465:0}, tmp___0=0] [L6192] return (p); VAL [\old(size)=1598, \result={-73786976294838206465:0}, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:0}, ref_cnt=0, size=1598, tmp={-73786976294838206465:0}, tmp___0=0] [L7669] RET, EXPR ldv_malloc(sizeof(struct atm_dev)) VAL [\old(arg0)=0, __this_module={26:-25}, arg0=0, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_malloc(sizeof(struct atm_dev))={-73786976294838206465:0}, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7669] return ldv_malloc(sizeof(struct atm_dev)); [L7141] RET, EXPR atm_dev_lookup(itf) VAL [\old(itf)=0, __this_module={26:-25}, atm_dev_lookup(itf)={-73786976294838206465:0}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7141] dev = atm_dev_lookup(itf) [L7142] COND FALSE !((unsigned long )dev == (unsigned long )((struct atm_dev *)0)) [L7146] EXPR dev->ops VAL [\old(itf)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-73786976294838206465:0}, dev->ops={19:-3}, itf=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7146] COND TRUE (unsigned long )dev->ops != (unsigned long )((struct atmdev_ops const *)(& atmtcp_v_dev_ops)) [L7147] CALL atm_dev_put(dev) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6377] int tmp ; [L6378] long tmp___0 ; [L6379] int tmp___1 ; [L6381] CALL, EXPR atomic_dec_and_test(& dev->refcnt) [L6126] char c ; [L6130] return ((int )((signed char )c) != 0); VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=1, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=36893488147419103239, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, v={-73786976294838206465:157}, v={-73786976294838206465:157}] [L6381] RET, EXPR atomic_dec_and_test(& dev->refcnt) [L6381] tmp___1 = atomic_dec_and_test(& dev->refcnt) [L6382] COND TRUE tmp___1 != 0 [L6383] CALL, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6045] EXPR addr + (unsigned long )(nr >> 6) [L6045] return ((int )((unsigned long )*(addr + (unsigned long )(nr >> 6)) >> ((int )nr & 63)) & 1); [L6383] RET, EXPR constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6383] tmp = constant_test_bit(0L, (unsigned long const volatile *)(& dev->flags)) [L6384] CALL, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6258] return (exp); VAL [\old(c)=0, \old(exp)=0, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, \result=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, c=0, exp=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6384] RET, EXPR ldv__builtin_expect(tmp == 0, 0L) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-73786976294838206465:0}, dev={-73786976294838206465:0}, ldv__builtin_expect(tmp == 0, 0L)=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=-6, tmp___1=1] [L6384] tmp___0 = ldv__builtin_expect(tmp == 0, 0L) [L6385] COND FALSE !(tmp___0 != 0L) [L6392] EXPR dev->ops [L6392] EXPR (dev->ops)->dev_close VAL [(dev->ops)->dev_close={-1:7}, \old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev={-73786976294838206465:0}, dev={-73786976294838206465:0}, dev->ops={19:-3}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, tmp=-6, tmp___0=0, tmp___1=1] [L6392] COND TRUE (unsigned long )(dev->ops)->dev_close != (unsigned long )((void (* )(struct atm_dev * ))0) [L6393] EXPR dev->ops [L6393] EXPR (dev->ops)->dev_close [L6393] CALL (*((dev->ops)->dev_close))(dev) [L6824] struct atm_dev *atmtcp_dev ; [L6825] struct atmtcp_dev_data *dev_data ; [L6827] EXPR vcc->dev_data [L6827] atmtcp_dev = (struct atm_dev *)vcc->dev_data [L6828] EXPR atmtcp_dev->dev_data [L6828] dev_data = (struct atmtcp_dev_data *)atmtcp_dev->dev_data [L6829] dev_data->vcc = (struct atm_vcc *)0 [L6830] EXPR dev_data->persist VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_dev={-73786976294838206465:23}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={-73786976294838206465:-15}, dev_data->persist=0, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-73786976294838206465:0}, vcc={-73786976294838206465:0}] [L6830] COND FALSE !(dev_data->persist != 0) [L6834] atmtcp_dev->dev_data = (void *)0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_dev={-73786976294838206465:23}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={-73786976294838206465:-15}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-73786976294838206465:0}, vcc={-73786976294838206465:0}] [L6835] CALL kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, p={-73786976294838206465:-15}, ref_cnt=0] [L6835] RET kfree((void const *)dev_data) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_dev={-73786976294838206465:23}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, dev_data={-73786976294838206465:-15}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0, vcc={-73786976294838206465:0}, vcc={-73786976294838206465:0}] [L6836] CALL ldv_atm_dev_deregister_5(atmtcp_dev) [L7476] FCALL atm_dev_deregister(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={-73786976294838206465:23}, ldv_func_arg1={-73786976294838206465:23}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7477] ldv_state_variable_3 = 0 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, ldv_func_arg1={-73786976294838206465:23}, ldv_func_arg1={-73786976294838206465:23}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L6836] RET ldv_atm_dev_deregister_5(atmtcp_dev) [L6837] vcc->dev_data = (void *)0 [L6838] CALL ldv_module_put_6(& __this_module) [L7484] CALL ldv_module_put(ldv_func_arg1) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={26:-25}, ref_cnt=0] [L7596] COND TRUE (unsigned long )module != (unsigned long )((struct module *)0) VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={26:-25}, module={26:-25}, ref_cnt=0] [L7597] COND TRUE ldv_module_refcounter <= 1 VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, module={26:-25}, module={26:-25}, ref_cnt=0] [L7598] CALL ldv_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] [L7526] reach_error() VAL [\old(ldv_module_refcounter)=1, \old(ldv_state_variable_3)=0, __this_module={26:-25}, atmtcp_c_dev_ops={12:0}, atmtcp_c_dev_ops_group0={0:0}, atmtcp_control_dev={13:0}, atmtcp_ioctl_ops={15:0}, atmtcp_v_dev_ops={14:0}, atmtcp_v_dev_ops_group0={0:0}, atmtcp_v_dev_ops_group1={0:0}, LDV_IN_INTERRUPT=1, ldv_module_refcounter=1, ldv_retval_0=0, ldv_retval_1=0, ldv_state_variable_0=3, ldv_state_variable_1=1, ldv_state_variable_2=0, ldv_state_variable_3=0, ref_cnt=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 626 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 375.0s, OverallIterations: 20, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.1s, AutomataDifference: 314.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 79 mSolverCounterUnknown, 18138 SdHoareTripleChecker+Valid, 294.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 17241 mSDsluCounter, 92495 SdHoareTripleChecker+Invalid, 283.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79648 mSDsCounter, 9811 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 43037 IncrementalHoareTripleChecker+Invalid, 52927 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9811 mSolverCounterUnsat, 12847 mSDtfsCounter, 43037 mSolverCounterSat, 0.8s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4453 GetRequests, 4007 SyntacticMatches, 17 SemanticMatches, 429 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2916 ImplicationChecksByTransitivity, 25.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2325occurred in iteration=3, InterpolantAutomatonStates: 271, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 11456 StatesRemovedByMinimization, 18 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 16.5s SatisfiabilityAnalysisTime, 32.4s InterpolantComputationTime, 5412 NumberOfCodeBlocks, 5412 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 6631 ConstructedInterpolants, 0 QuantifiedInterpolants, 11999 SizeOfPredicates, 18 NumberOfNonLiveVariables, 18572 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 34 InterpolantComputations, 12 PerfectInterpolantSequences, 8286/8940 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 12:29:37,828 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-e04fb08 [2022-11-16 12:29:40,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 12:29:40,180 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 12:29:40,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 12:29:40,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 12:29:40,205 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 12:29:40,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 12:29:40,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 12:29:40,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 12:29:40,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 12:29:40,212 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 12:29:40,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 12:29:40,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 12:29:40,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 12:29:40,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 12:29:40,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 12:29:40,218 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 12:29:40,219 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 12:29:40,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 12:29:40,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 12:29:40,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 12:29:40,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 12:29:40,233 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 12:29:40,234 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 12:29:40,239 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 12:29:40,247 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 12:29:40,248 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 12:29:40,249 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 12:29:40,249 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 12:29:40,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 12:29:40,251 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 12:29:40,252 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 12:29:40,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 12:29:40,255 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 12:29:40,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 12:29:40,257 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 12:29:40,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 12:29:40,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 12:29:40,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 12:29:40,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 12:29:40,262 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 12:29:40,263 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-16 12:29:40,318 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 12:29:40,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 12:29:40,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 12:29:40,320 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 12:29:40,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 12:29:40,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 12:29:40,324 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 12:29:40,324 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 12:29:40,324 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 12:29:40,325 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 12:29:40,326 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 12:29:40,326 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-16 12:29:40,326 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 12:29:40,327 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-16 12:29:40,327 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 12:29:40,327 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 12:29:40,328 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 12:29:40,328 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-16 12:29:40,328 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 12:29:40,328 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-16 12:29:40,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 12:29:40,329 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 12:29:40,329 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 12:29:40,329 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:29:40,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 12:29:40,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 12:29:40,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-16 12:29:40,331 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 12:29:40,331 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 12:29:40,331 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-16 12:29:40,331 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-16 12:29:40,332 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-16 12:29:40,332 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 12:29:40,332 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e6823a3e354b35bf05bec5e81d72dc7306859bf56793457624e681693cebdf0b [2022-11-16 12:29:40,712 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 12:29:40,741 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 12:29:40,744 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 12:29:40,745 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 12:29:40,748 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 12:29:40,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-16 12:29:40,815 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/256bf49ce/21e1a73752a847f085c4c20b60120f86/FLAGe6a4c948b [2022-11-16 12:29:41,722 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 12:29:41,722 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-16 12:29:41,764 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/256bf49ce/21e1a73752a847f085c4c20b60120f86/FLAGe6a4c948b [2022-11-16 12:29:42,188 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/data/256bf49ce/21e1a73752a847f085c4c20b60120f86 [2022-11-16 12:29:42,190 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 12:29:42,192 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 12:29:42,193 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 12:29:42,193 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 12:29:42,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 12:29:42,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:42" (1/1) ... [2022-11-16 12:29:42,198 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c68a10f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:42, skipping insertion in model container [2022-11-16 12:29:42,198 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 12:29:42" (1/1) ... [2022-11-16 12:29:42,208 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 12:29:42,307 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:29:43,578 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-16 12:29:43,633 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 12:29:43,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:29:43,716 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-16 12:29:43,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 12:29:44,119 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-16 12:29:44,132 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 12:29:44,141 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:29:44,180 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 12:29:44,551 WARN L229 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/sv-benchmarks/c/ldv-linux-4.2-rc1/linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i[225078,225091] [2022-11-16 12:29:44,564 WARN L611 FunctionHandler]: implicit declaration of function ldv_xmalloc [2022-11-16 12:29:44,566 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 12:29:44,622 INFO L208 MainTranslator]: Completed translation [2022-11-16 12:29:44,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44 WrapperNode [2022-11-16 12:29:44,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 12:29:44,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 12:29:44,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 12:29:44,624 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 12:29:44,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:44,723 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:44,852 INFO L138 Inliner]: procedures = 155, calls = 1103, calls flagged for inlining = 57, calls inlined = 55, statements flattened = 2393 [2022-11-16 12:29:44,853 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 12:29:44,854 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 12:29:44,854 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 12:29:44,854 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 12:29:44,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:44,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:44,903 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:44,904 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:45,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:45,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:45,115 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:45,123 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:45,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 12:29:45,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 12:29:45,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 12:29:45,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 12:29:45,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (1/1) ... [2022-11-16 12:29:45,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 12:29:45,159 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 12:29:45,172 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 12:29:45,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 12:29:45,218 INFO L130 BoogieDeclarations]: Found specification of procedure atm_sk [2022-11-16 12:29:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_sk [2022-11-16 12:29:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2022-11-16 12:29:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_from_linear_data [2022-11-16 12:29:45,219 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_from_linear_data [2022-11-16 12:29:45,219 INFO L130 BoogieDeclarations]: Found specification of procedure change_bit [2022-11-16 12:29:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure change_bit [2022-11-16 12:29:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure atm_alloc_charge [2022-11-16 12:29:45,220 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_alloc_charge [2022-11-16 12:29:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-11-16 12:29:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2022-11-16 12:29:45,220 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-16 12:29:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2022-11-16 12:29:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE2 [2022-11-16 12:29:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2022-11-16 12:29:45,221 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2022-11-16 12:29:45,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2022-11-16 12:29:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2022-11-16 12:29:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2022-11-16 12:29:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure variable_test_bit [2022-11-16 12:29:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure variable_test_bit [2022-11-16 12:29:45,222 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2022-11-16 12:29:45,222 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2022-11-16 12:29:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2022-11-16 12:29:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2022-11-16 12:29:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-11-16 12:29:45,223 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-11-16 12:29:45,223 INFO L130 BoogieDeclarations]: Found specification of procedure sk_sleep [2022-11-16 12:29:45,224 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_sleep [2022-11-16 12:29:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_module_put [2022-11-16 12:29:45,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_module_put [2022-11-16 12:29:45,224 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_ioctl [2022-11-16 12:29:45,225 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_ioctl [2022-11-16 12:29:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2022-11-16 12:29:45,225 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2022-11-16 12:29:45,225 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2022-11-16 12:29:45,226 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2022-11-16 12:29:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2022-11-16 12:29:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE2 [2022-11-16 12:29:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-16 12:29:45,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE8 [2022-11-16 12:29:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2022-11-16 12:29:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2022-11-16 12:29:45,227 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2022-11-16 12:29:45,227 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2022-11-16 12:29:45,228 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2022-11-16 12:29:45,228 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2022-11-16 12:29:45,229 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_dev_close [2022-11-16 12:29:45,229 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_dev_close [2022-11-16 12:29:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_init_zalloc [2022-11-16 12:29:45,230 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_init_zalloc [2022-11-16 12:29:45,230 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-11-16 12:29:45,231 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-11-16 12:29:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-16 12:29:45,231 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_memset [2022-11-16 12:29:45,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_memset [2022-11-16 12:29:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure sk_atm [2022-11-16 12:29:45,232 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_atm [2022-11-16 12:29:45,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 12:29:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2022-11-16 12:29:45,233 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2022-11-16 12:29:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_send [2022-11-16 12:29:45,233 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_send [2022-11-16 12:29:45,233 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2022-11-16 12:29:45,234 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2022-11-16 12:29:45,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-16 12:29:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 12:29:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2022-11-16 12:29:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE8 [2022-11-16 12:29:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE2 [2022-11-16 12:29:45,235 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2022-11-16 12:29:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-16 12:29:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2022-11-16 12:29:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_create [2022-11-16 12:29:45,236 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_create [2022-11-16 12:29:45,236 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_c_close [2022-11-16 12:29:45,236 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_c_close [2022-11-16 12:29:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_deregister [2022-11-16 12:29:45,237 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_deregister [2022-11-16 12:29:45,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-11-16 12:29:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2022-11-16 12:29:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE2 [2022-11-16 12:29:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 12:29:45,238 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 12:29:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-11-16 12:29:45,239 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_close [2022-11-16 12:29:45,240 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_close [2022-11-16 12:29:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 12:29:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 12:29:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2022-11-16 12:29:45,240 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2022-11-16 12:29:45,241 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2022-11-16 12:29:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_put [2022-11-16 12:29:45,241 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_put [2022-11-16 12:29:45,241 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2022-11-16 12:29:45,241 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2022-11-16 12:29:45,242 INFO L130 BoogieDeclarations]: Found specification of procedure atm_dev_lookup [2022-11-16 12:29:45,242 INFO L138 BoogieDeclarations]: Found implementation of procedure atm_dev_lookup [2022-11-16 12:29:45,242 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2022-11-16 12:29:45,242 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2022-11-16 12:29:45,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE1 [2022-11-16 12:29:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_v_send [2022-11-16 12:29:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_v_send [2022-11-16 12:29:45,243 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:29:45,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~VOID [2022-11-16 12:29:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure atmtcp_send_control [2022-11-16 12:29:45,244 INFO L138 BoogieDeclarations]: Found implementation of procedure atmtcp_send_control [2022-11-16 12:29:45,244 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_unlock [2022-11-16 12:29:45,245 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_unlock [2022-11-16 12:29:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 12:29:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 12:29:45,248 INFO L130 BoogieDeclarations]: Found specification of procedure _raw_read_lock [2022-11-16 12:29:45,248 INFO L138 BoogieDeclarations]: Found implementation of procedure _raw_read_lock [2022-11-16 12:29:45,886 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 12:29:45,889 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 12:29:51,444 INFO L769 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2022-11-16 12:30:13,972 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 12:30:13,986 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 12:30:13,986 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 12:30:13,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:13 BoogieIcfgContainer [2022-11-16 12:30:13,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 12:30:13,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 12:30:13,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 12:30:13,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 12:30:13,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 12:29:42" (1/3) ... [2022-11-16 12:30:13,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce321e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:13, skipping insertion in model container [2022-11-16 12:30:13,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 12:29:44" (2/3) ... [2022-11-16 12:30:13,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ce321e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 12:30:13, skipping insertion in model container [2022-11-16 12:30:13,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 12:30:13" (3/3) ... [2022-11-16 12:30:13,999 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-4.2-rc1.tar.xz-08_1a-drivers--atm--atmtcp.ko-entry_point.cil.out.i [2022-11-16 12:30:14,019 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 12:30:14,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-16 12:30:14,087 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 12:30:14,095 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;@9a0ae22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 12:30:14,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-16 12:30:14,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) [2022-11-16 12:30:14,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2022-11-16 12:30:14,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:14,119 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:14,119 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:14,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:14,125 INFO L85 PathProgramCache]: Analyzing trace with hash 653302310, now seen corresponding path program 1 times [2022-11-16 12:30:14,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:14,142 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1669758134] [2022-11-16 12:30:14,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:14,143 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:14,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:14,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:14,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 12:30:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:15,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-16 12:30:15,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:15,855 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2022-11-16 12:30:15,855 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:15,856 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:15,856 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1669758134] [2022-11-16 12:30:15,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1669758134] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:15,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:15,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-11-16 12:30:15,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579776141] [2022-11-16 12:30:15,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:15,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-16 12:30:15,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:15,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-16 12:30:15,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-16 12:30:15,900 INFO L87 Difference]: Start difference. First operand has 625 states, 447 states have (on average 1.342281879194631) internal successors, (600), 464 states have internal predecessors, (600), 137 states have call successors, (137), 40 states have call predecessors, (137), 39 states have return successors, (132), 129 states have call predecessors, (132), 132 states have call successors, (132) Second operand has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:30:16,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:16,806 INFO L93 Difference]: Finished difference Result 1251 states and 1782 transitions. [2022-11-16 12:30:16,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-16 12:30:16,810 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 133 [2022-11-16 12:30:16,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:16,838 INFO L225 Difference]: With dead ends: 1251 [2022-11-16 12:30:16,838 INFO L226 Difference]: Without dead ends: 613 [2022-11-16 12:30:16,847 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:30:16,851 INFO L413 NwaCegarLoop]: 859 mSDtfsCounter, 6 mSDsluCounter, 3420 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 4279 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:16,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 4279 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-11-16 12:30:16,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states. [2022-11-16 12:30:16,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 613. [2022-11-16 12:30:16,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 613 states, 442 states have (on average 1.3257918552036199) internal successors, (586), 452 states have internal predecessors, (586), 132 states have call successors, (132), 39 states have call predecessors, (132), 38 states have return successors, (130), 127 states have call predecessors, (130), 130 states have call successors, (130) [2022-11-16 12:30:16,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 613 states to 613 states and 848 transitions. [2022-11-16 12:30:17,001 INFO L78 Accepts]: Start accepts. Automaton has 613 states and 848 transitions. Word has length 133 [2022-11-16 12:30:17,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:17,005 INFO L495 AbstractCegarLoop]: Abstraction has 613 states and 848 transitions. [2022-11-16 12:30:17,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.6) internal successors, (43), 6 states have internal predecessors, (43), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2022-11-16 12:30:17,006 INFO L276 IsEmpty]: Start isEmpty. Operand 613 states and 848 transitions. [2022-11-16 12:30:17,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2022-11-16 12:30:17,019 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:17,021 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:17,054 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:17,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:17,237 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:17,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:17,237 INFO L85 PathProgramCache]: Analyzing trace with hash 551984542, now seen corresponding path program 1 times [2022-11-16 12:30:17,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:17,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [457623862] [2022-11-16 12:30:17,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:17,240 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:17,241 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:17,244 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:17,287 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 12:30:18,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:18,181 INFO L263 TraceCheckSpWp]: Trace formula consists of 1367 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:30:18,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 12 proven. 1 refuted. 0 times theorem prover too weak. 211 trivial. 0 not checked. [2022-11-16 12:30:18,776 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:21,048 INFO L134 CoverageAnalysis]: Checked inductivity of 224 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-16 12:30:21,049 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:21,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [457623862] [2022-11-16 12:30:21,049 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [457623862] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:21,049 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:30:21,049 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2022-11-16 12:30:21,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2056295973] [2022-11-16 12:30:21,050 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:21,051 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-16 12:30:21,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:21,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-16 12:30:21,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2022-11-16 12:30:21,052 INFO L87 Difference]: Start difference. First operand 613 states and 848 transitions. Second operand has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-16 12:30:22,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:22,842 INFO L93 Difference]: Finished difference Result 1221 states and 1698 transitions. [2022-11-16 12:30:22,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-16 12:30:22,844 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) Word has length 135 [2022-11-16 12:30:22,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:22,850 INFO L225 Difference]: With dead ends: 1221 [2022-11-16 12:30:22,850 INFO L226 Difference]: Without dead ends: 619 [2022-11-16 12:30:22,853 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2022-11-16 12:30:22,855 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 8 mSDsluCounter, 7542 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 8385 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:22,855 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 8385 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-11-16 12:30:22,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 619 states. [2022-11-16 12:30:22,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 619 to 619. [2022-11-16 12:30:22,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 619 states, 446 states have (on average 1.3228699551569507) internal successors, (590), 456 states have internal predecessors, (590), 133 states have call successors, (133), 40 states have call predecessors, (133), 39 states have return successors, (131), 128 states have call predecessors, (131), 131 states have call successors, (131) [2022-11-16 12:30:22,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 619 states to 619 states and 854 transitions. [2022-11-16 12:30:22,892 INFO L78 Accepts]: Start accepts. Automaton has 619 states and 854 transitions. Word has length 135 [2022-11-16 12:30:22,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:22,893 INFO L495 AbstractCegarLoop]: Abstraction has 619 states and 854 transitions. [2022-11-16 12:30:22,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 6.444444444444445) internal successors, (58), 11 states have internal predecessors, (58), 4 states have call successors, (16), 2 states have call predecessors, (16), 5 states have return successors, (16), 4 states have call predecessors, (16), 4 states have call successors, (16) [2022-11-16 12:30:22,898 INFO L276 IsEmpty]: Start isEmpty. Operand 619 states and 854 transitions. [2022-11-16 12:30:22,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-11-16 12:30:22,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:22,902 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:22,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:23,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:23,123 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:23,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:23,124 INFO L85 PathProgramCache]: Analyzing trace with hash -784279514, now seen corresponding path program 2 times [2022-11-16 12:30:23,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:23,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1337653415] [2022-11-16 12:30:23,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:23,127 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:23,127 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:23,128 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:23,148 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 12:30:23,802 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:30:23,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:23,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:30:23,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:26,734 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2022-11-16 12:30:26,734 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:26,734 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:26,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1337653415] [2022-11-16 12:30:26,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1337653415] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:26,735 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:26,735 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 12:30:26,735 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527993598] [2022-11-16 12:30:26,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:26,736 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:30:26,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:26,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:30:26,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:26,737 INFO L87 Difference]: Start difference. First operand 619 states and 854 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 12:30:26,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:26,889 INFO L93 Difference]: Finished difference Result 1797 states and 2493 transitions. [2022-11-16 12:30:26,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:30:26,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) Word has length 137 [2022-11-16 12:30:26,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:26,898 INFO L225 Difference]: With dead ends: 1797 [2022-11-16 12:30:26,899 INFO L226 Difference]: Without dead ends: 1203 [2022-11-16 12:30:26,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:26,903 INFO L413 NwaCegarLoop]: 1118 mSDtfsCounter, 784 mSDsluCounter, 810 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 1928 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:26,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 1928 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 12:30:26,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1203 states. [2022-11-16 12:30:26,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1203 to 1200. [2022-11-16 12:30:26,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1200 states, 869 states have (on average 1.327963176064442) internal successors, (1154), 888 states have internal predecessors, (1154), 254 states have call successors, (254), 77 states have call predecessors, (254), 76 states have return successors, (252), 246 states have call predecessors, (252), 252 states have call successors, (252) [2022-11-16 12:30:26,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1200 states to 1200 states and 1660 transitions. [2022-11-16 12:30:26,989 INFO L78 Accepts]: Start accepts. Automaton has 1200 states and 1660 transitions. Word has length 137 [2022-11-16 12:30:26,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:26,991 INFO L495 AbstractCegarLoop]: Abstraction has 1200 states and 1660 transitions. [2022-11-16 12:30:26,991 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 2 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (11), 1 states have call predecessors, (11), 1 states have call successors, (11) [2022-11-16 12:30:26,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1200 states and 1660 transitions. [2022-11-16 12:30:26,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-11-16 12:30:26,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:26,995 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:27,022 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:27,212 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:27,213 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:27,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:27,213 INFO L85 PathProgramCache]: Analyzing trace with hash -122962978, now seen corresponding path program 1 times [2022-11-16 12:30:27,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:27,215 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [323624347] [2022-11-16 12:30:27,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:27,215 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:27,215 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:27,216 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:27,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 12:30:28,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:28,075 INFO L263 TraceCheckSpWp]: Trace formula consists of 1470 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 12:30:28,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:28,827 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-11-16 12:30:28,827 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:31,407 INFO L134 CoverageAnalysis]: Checked inductivity of 233 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-11-16 12:30:31,407 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:31,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [323624347] [2022-11-16 12:30:31,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [323624347] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:31,408 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:30:31,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2022-11-16 12:30:31,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711013204] [2022-11-16 12:30:31,409 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:31,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-11-16 12:30:31,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:31,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-11-16 12:30:31,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2022-11-16 12:30:31,411 INFO L87 Difference]: Start difference. First operand 1200 states and 1660 transitions. Second operand has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:30:33,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:33,155 INFO L93 Difference]: Finished difference Result 2391 states and 3328 transitions. [2022-11-16 12:30:33,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-16 12:30:33,157 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 154 [2022-11-16 12:30:33,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:33,165 INFO L225 Difference]: With dead ends: 2391 [2022-11-16 12:30:33,165 INFO L226 Difference]: Without dead ends: 1202 [2022-11-16 12:30:33,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 309 GetRequests, 295 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2022-11-16 12:30:33,171 INFO L413 NwaCegarLoop]: 843 mSDtfsCounter, 13 mSDsluCounter, 5869 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 6712 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:33,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 6712 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-11-16 12:30:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1202 states. [2022-11-16 12:30:33,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1202 to 1202. [2022-11-16 12:30:33,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1202 states, 871 states have (on average 1.3272101033295063) internal successors, (1156), 890 states have internal predecessors, (1156), 254 states have call successors, (254), 77 states have call predecessors, (254), 76 states have return successors, (252), 246 states have call predecessors, (252), 252 states have call successors, (252) [2022-11-16 12:30:33,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1202 states to 1202 states and 1662 transitions. [2022-11-16 12:30:33,227 INFO L78 Accepts]: Start accepts. Automaton has 1202 states and 1662 transitions. Word has length 154 [2022-11-16 12:30:33,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:33,228 INFO L495 AbstractCegarLoop]: Abstraction has 1202 states and 1662 transitions. [2022-11-16 12:30:33,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.818181818181818) internal successors, (75), 13 states have internal predecessors, (75), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:30:33,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1202 states and 1662 transitions. [2022-11-16 12:30:33,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2022-11-16 12:30:33,231 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:33,231 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:33,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:33,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:33,457 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:33,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:33,457 INFO L85 PathProgramCache]: Analyzing trace with hash 865547622, now seen corresponding path program 2 times [2022-11-16 12:30:33,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:33,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [646841626] [2022-11-16 12:30:33,459 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:33,459 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:33,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:33,461 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:33,479 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 12:30:34,162 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:30:34,162 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:34,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 1153 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:30:34,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:34,344 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2022-11-16 12:30:34,345 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:34,345 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:34,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [646841626] [2022-11-16 12:30:34,345 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [646841626] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:34,345 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:34,345 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:30:34,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194864133] [2022-11-16 12:30:34,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:34,346 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:30:34,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:34,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:30:34,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:34,347 INFO L87 Difference]: Start difference. First operand 1202 states and 1662 transitions. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:30:34,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:34,592 INFO L93 Difference]: Finished difference Result 2201 states and 3027 transitions. [2022-11-16 12:30:34,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:30:34,592 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 156 [2022-11-16 12:30:34,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:34,599 INFO L225 Difference]: With dead ends: 2201 [2022-11-16 12:30:34,599 INFO L226 Difference]: Without dead ends: 1028 [2022-11-16 12:30:34,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:34,606 INFO L413 NwaCegarLoop]: 715 mSDtfsCounter, 709 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 709 SdHoareTripleChecker+Valid, 715 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:34,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [709 Valid, 715 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:30:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2022-11-16 12:30:34,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2022-11-16 12:30:34,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 747 states have (on average 1.319946452476573) internal successors, (986), 760 states have internal predecessors, (986), 208 states have call successors, (208), 73 states have call predecessors, (208), 72 states have return successors, (206), 202 states have call predecessors, (206), 206 states have call successors, (206) [2022-11-16 12:30:34,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1400 transitions. [2022-11-16 12:30:34,730 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1400 transitions. Word has length 156 [2022-11-16 12:30:34,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:34,731 INFO L495 AbstractCegarLoop]: Abstraction has 1028 states and 1400 transitions. [2022-11-16 12:30:34,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 2 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:30:34,731 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1400 transitions. [2022-11-16 12:30:34,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2022-11-16 12:30:34,735 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:34,735 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:34,768 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:34,959 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:34,959 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:34,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:34,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1850370297, now seen corresponding path program 1 times [2022-11-16 12:30:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:34,961 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [195225254] [2022-11-16 12:30:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:34,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:34,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:34,962 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:34,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 12:30:35,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:35,886 INFO L263 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 12:30:35,892 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:36,777 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 24 proven. 6 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-11-16 12:30:36,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:40,136 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-16 12:30:40,136 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:40,136 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [195225254] [2022-11-16 12:30:40,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [195225254] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:40,137 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:30:40,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2022-11-16 12:30:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1288833241] [2022-11-16 12:30:40,137 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:40,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-11-16 12:30:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-11-16 12:30:40,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-11-16 12:30:40,139 INFO L87 Difference]: Start difference. First operand 1028 states and 1400 transitions. Second operand has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:30:42,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:42,452 INFO L93 Difference]: Finished difference Result 2047 states and 2808 transitions. [2022-11-16 12:30:42,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-11-16 12:30:42,454 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 173 [2022-11-16 12:30:42,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:42,460 INFO L225 Difference]: With dead ends: 2047 [2022-11-16 12:30:42,460 INFO L226 Difference]: Without dead ends: 1030 [2022-11-16 12:30:42,464 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 347 GetRequests, 331 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2022-11-16 12:30:42,465 INFO L413 NwaCegarLoop]: 712 mSDtfsCounter, 10 mSDsluCounter, 6366 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 7078 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:42,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 7078 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-11-16 12:30:42,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2022-11-16 12:30:42,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 1030. [2022-11-16 12:30:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1030 states, 749 states have (on average 1.3190921228304406) internal successors, (988), 762 states have internal predecessors, (988), 208 states have call successors, (208), 73 states have call predecessors, (208), 72 states have return successors, (206), 202 states have call predecessors, (206), 206 states have call successors, (206) [2022-11-16 12:30:42,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1030 states to 1030 states and 1402 transitions. [2022-11-16 12:30:42,518 INFO L78 Accepts]: Start accepts. Automaton has 1030 states and 1402 transitions. Word has length 173 [2022-11-16 12:30:42,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:42,519 INFO L495 AbstractCegarLoop]: Abstraction has 1030 states and 1402 transitions. [2022-11-16 12:30:42,519 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 7.461538461538462) internal successors, (97), 15 states have internal predecessors, (97), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:30:42,519 INFO L276 IsEmpty]: Start isEmpty. Operand 1030 states and 1402 transitions. [2022-11-16 12:30:42,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-11-16 12:30:42,522 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:42,523 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:42,560 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:42,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:42,739 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:42,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:42,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1083564159, now seen corresponding path program 2 times [2022-11-16 12:30:42,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:42,742 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1769364707] [2022-11-16 12:30:42,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:42,742 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:42,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:42,743 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:42,787 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 12:30:43,469 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:30:43,469 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:43,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 1072 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:30:43,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:44,293 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2022-11-16 12:30:44,294 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:44,294 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:44,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1769364707] [2022-11-16 12:30:44,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1769364707] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:44,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:44,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:30:44,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304055628] [2022-11-16 12:30:44,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:44,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:30:44,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:44,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:30:44,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:44,296 INFO L87 Difference]: Start difference. First operand 1030 states and 1402 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:30:44,679 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:44,679 INFO L93 Difference]: Finished difference Result 3021 states and 4119 transitions. [2022-11-16 12:30:44,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:30:44,680 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 175 [2022-11-16 12:30:44,680 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:44,692 INFO L225 Difference]: With dead ends: 3021 [2022-11-16 12:30:44,692 INFO L226 Difference]: Without dead ends: 2020 [2022-11-16 12:30:44,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:44,697 INFO L413 NwaCegarLoop]: 860 mSDtfsCounter, 636 mSDsluCounter, 702 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 636 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:44,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [636 Valid, 1562 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-16 12:30:44,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2020 states. [2022-11-16 12:30:44,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2020 to 2016. [2022-11-16 12:30:44,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1469 states have (on average 1.3206262763784888) internal successors, (1940), 1494 states have internal predecessors, (1940), 404 states have call successors, (404), 143 states have call predecessors, (404), 142 states have return successors, (402), 394 states have call predecessors, (402), 402 states have call successors, (402) [2022-11-16 12:30:44,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2746 transitions. [2022-11-16 12:30:44,813 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2746 transitions. Word has length 175 [2022-11-16 12:30:44,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:44,814 INFO L495 AbstractCegarLoop]: Abstraction has 2016 states and 2746 transitions. [2022-11-16 12:30:44,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (14), 3 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:30:44,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2746 transitions. [2022-11-16 12:30:44,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-11-16 12:30:44,818 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:44,819 INFO L195 NwaCegarLoop]: trace histogram [8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:44,845 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:45,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:45,035 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:45,035 INFO L85 PathProgramCache]: Analyzing trace with hash 1216301736, now seen corresponding path program 1 times [2022-11-16 12:30:45,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:45,037 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1082447146] [2022-11-16 12:30:45,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:45,038 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:45,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:45,039 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:45,083 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-11-16 12:30:46,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:46,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 1645 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:30:46,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:47,175 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 33 proven. 10 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2022-11-16 12:30:47,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:30:51,335 INFO L134 CoverageAnalysis]: Checked inductivity of 263 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 222 trivial. 0 not checked. [2022-11-16 12:30:51,336 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:51,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1082447146] [2022-11-16 12:30:51,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1082447146] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:30:51,336 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:30:51,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2022-11-16 12:30:51,337 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571085526] [2022-11-16 12:30:51,337 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:30:51,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-11-16 12:30:51,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:51,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-11-16 12:30:51,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2022-11-16 12:30:51,338 INFO L87 Difference]: Start difference. First operand 2016 states and 2746 transitions. Second operand has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-16 12:30:54,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:54,766 INFO L93 Difference]: Finished difference Result 4032 states and 5533 transitions. [2022-11-16 12:30:54,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-11-16 12:30:54,768 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) Word has length 182 [2022-11-16 12:30:54,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:54,781 INFO L225 Difference]: With dead ends: 4032 [2022-11-16 12:30:54,781 INFO L226 Difference]: Without dead ends: 2028 [2022-11-16 12:30:54,788 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=106, Invalid=400, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:30:54,789 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 20 mSDsluCounter, 6370 mSDsCounter, 0 mSdLazyCounter, 176 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7083 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:54,790 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7083 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 176 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2022-11-16 12:30:54,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states. [2022-11-16 12:30:54,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 2028. [2022-11-16 12:30:54,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2028 states, 1480 states have (on average 1.318918918918919) internal successors, (1952), 1505 states have internal predecessors, (1952), 404 states have call successors, (404), 144 states have call predecessors, (404), 143 states have return successors, (402), 394 states have call predecessors, (402), 402 states have call successors, (402) [2022-11-16 12:30:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2028 states to 2028 states and 2758 transitions. [2022-11-16 12:30:54,916 INFO L78 Accepts]: Start accepts. Automaton has 2028 states and 2758 transitions. Word has length 182 [2022-11-16 12:30:54,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:54,918 INFO L495 AbstractCegarLoop]: Abstraction has 2028 states and 2758 transitions. [2022-11-16 12:30:54,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 15 states have (on average 6.8) internal successors, (102), 17 states have internal predecessors, (102), 4 states have call successors, (27), 2 states have call predecessors, (27), 5 states have return successors, (24), 4 states have call predecessors, (24), 4 states have call successors, (24) [2022-11-16 12:30:54,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2028 states and 2758 transitions. [2022-11-16 12:30:54,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2022-11-16 12:30:54,924 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:54,924 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:54,960 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:55,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:55,148 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:55,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:55,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1013021780, now seen corresponding path program 2 times [2022-11-16 12:30:55,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:55,151 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1995787772] [2022-11-16 12:30:55,151 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:30:55,151 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:55,151 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:55,153 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:55,161 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-11-16 12:30:55,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 12:30:55,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:30:56,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-16 12:30:56,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:56,119 INFO L134 CoverageAnalysis]: Checked inductivity of 273 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-11-16 12:30:56,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:30:56,120 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:30:56,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1995787772] [2022-11-16 12:30:56,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1995787772] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:30:56,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:30:56,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 12:30:56,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400111929] [2022-11-16 12:30:56,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:30:56,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 12:30:56,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:30:56,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 12:30:56,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:56,122 INFO L87 Difference]: Start difference. First operand 2028 states and 2758 transitions. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:30:56,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:30:56,518 INFO L93 Difference]: Finished difference Result 5456 states and 7431 transitions. [2022-11-16 12:30:56,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 12:30:56,519 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 183 [2022-11-16 12:30:56,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:30:56,538 INFO L225 Difference]: With dead ends: 5456 [2022-11-16 12:30:56,538 INFO L226 Difference]: Without dead ends: 3461 [2022-11-16 12:30:56,547 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 182 GetRequests, 181 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 12:30:56,550 INFO L413 NwaCegarLoop]: 821 mSDtfsCounter, 527 mSDsluCounter, 678 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 1499 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:30:56,550 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [527 Valid, 1499 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-16 12:30:56,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3461 states. [2022-11-16 12:30:56,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3461 to 3454. [2022-11-16 12:30:56,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3454 states, 2522 states have (on average 1.3251387787470261) internal successors, (3342), 2563 states have internal predecessors, (3342), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-16 12:30:56,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3454 states to 3454 states and 4704 transitions. [2022-11-16 12:30:56,768 INFO L78 Accepts]: Start accepts. Automaton has 3454 states and 4704 transitions. Word has length 183 [2022-11-16 12:30:56,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:30:56,768 INFO L495 AbstractCegarLoop]: Abstraction has 3454 states and 4704 transitions. [2022-11-16 12:30:56,768 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 2 states have call successors, (19), 2 states have call predecessors, (19), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:30:56,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3454 states and 4704 transitions. [2022-11-16 12:30:56,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2022-11-16 12:30:56,774 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:30:56,775 INFO L195 NwaCegarLoop]: trace histogram [9, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:30:56,805 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2022-11-16 12:30:56,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:56,991 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:30:56,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:30:56,991 INFO L85 PathProgramCache]: Analyzing trace with hash 145557291, now seen corresponding path program 1 times [2022-11-16 12:30:56,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:30:56,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1136547525] [2022-11-16 12:30:56,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:30:56,993 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:30:56,994 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:30:56,995 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:30:57,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-11-16 12:30:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:30:58,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 1616 conjuncts, 10 conjunts are in the unsatisfiable core [2022-11-16 12:30:58,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:30:59,330 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 38 proven. 15 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-16 12:30:59,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:31:04,178 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-16 12:31:04,179 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:04,179 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1136547525] [2022-11-16 12:31:04,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1136547525] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:31:04,179 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:31:04,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2022-11-16 12:31:04,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285579933] [2022-11-16 12:31:04,180 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:31:04,180 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-11-16 12:31:04,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:04,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-11-16 12:31:04,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-11-16 12:31:04,182 INFO L87 Difference]: Start difference. First operand 3454 states and 4704 transitions. Second operand has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:31:08,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:08,454 INFO L93 Difference]: Finished difference Result 6904 states and 9466 transitions. [2022-11-16 12:31:08,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-11-16 12:31:08,456 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 187 [2022-11-16 12:31:08,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:08,478 INFO L225 Difference]: With dead ends: 6904 [2022-11-16 12:31:08,479 INFO L226 Difference]: Without dead ends: 3462 [2022-11-16 12:31:08,493 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 379 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=132, Invalid=518, Unknown=0, NotChecked=0, Total=650 [2022-11-16 12:31:08,493 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 31 mSDsluCounter, 6372 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 7086 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:08,495 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 7086 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2022-11-16 12:31:08,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3462 states. [2022-11-16 12:31:08,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3462 to 3462. [2022-11-16 12:31:08,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3462 states, 2530 states have (on average 1.3241106719367588) internal successors, (3350), 2571 states have internal predecessors, (3350), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-16 12:31:08,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3462 states to 3462 states and 4712 transitions. [2022-11-16 12:31:08,735 INFO L78 Accepts]: Start accepts. Automaton has 3462 states and 4712 transitions. Word has length 187 [2022-11-16 12:31:08,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:08,736 INFO L495 AbstractCegarLoop]: Abstraction has 3462 states and 4712 transitions. [2022-11-16 12:31:08,737 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 6.352941176470588) internal successors, (108), 19 states have internal predecessors, (108), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:31:08,737 INFO L276 IsEmpty]: Start isEmpty. Operand 3462 states and 4712 transitions. [2022-11-16 12:31:08,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2022-11-16 12:31:08,744 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:08,744 INFO L195 NwaCegarLoop]: trace histogram [10, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:08,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:08,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:08,958 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:08,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:08,959 INFO L85 PathProgramCache]: Analyzing trace with hash -201535321, now seen corresponding path program 2 times [2022-11-16 12:31:08,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:08,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [7475276] [2022-11-16 12:31:08,960 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:31:08,961 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:08,961 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:08,962 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:08,963 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-11-16 12:31:11,930 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:31:11,930 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:31:11,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 1627 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:31:11,988 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:13,418 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 43 proven. 21 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-16 12:31:13,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:31:19,305 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 62 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-16 12:31:19,305 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:19,305 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [7475276] [2022-11-16 12:31:19,305 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [7475276] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:31:19,306 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:31:19,306 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2022-11-16 12:31:19,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938776911] [2022-11-16 12:31:19,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:31:19,307 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-16 12:31:19,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:19,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-16 12:31:19,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=342, Unknown=0, NotChecked=0, Total=420 [2022-11-16 12:31:19,308 INFO L87 Difference]: Start difference. First operand 3462 states and 4712 transitions. Second operand has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:31:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:24,598 INFO L93 Difference]: Finished difference Result 6920 states and 9482 transitions. [2022-11-16 12:31:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-16 12:31:24,600 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) Word has length 188 [2022-11-16 12:31:24,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:24,620 INFO L225 Difference]: With dead ends: 6920 [2022-11-16 12:31:24,620 INFO L226 Difference]: Without dead ends: 3470 [2022-11-16 12:31:24,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 381 GetRequests, 355 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2022-11-16 12:31:24,636 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 26 mSDsluCounter, 9911 mSDsCounter, 0 mSdLazyCounter, 309 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 10625 SdHoareTripleChecker+Invalid, 342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:24,636 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 10625 Invalid, 342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 309 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2022-11-16 12:31:24,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3470 states. [2022-11-16 12:31:24,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3470 to 3470. [2022-11-16 12:31:24,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3470 states, 2538 states have (on average 1.3230890464933018) internal successors, (3358), 2579 states have internal predecessors, (3358), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-16 12:31:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3470 states to 3470 states and 4720 transitions. [2022-11-16 12:31:24,942 INFO L78 Accepts]: Start accepts. Automaton has 3470 states and 4720 transitions. Word has length 188 [2022-11-16 12:31:24,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:24,943 INFO L495 AbstractCegarLoop]: Abstraction has 3470 states and 4720 transitions. [2022-11-16 12:31:24,943 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.7894736842105265) internal successors, (110), 21 states have internal predecessors, (110), 4 states have call successors, (20), 2 states have call predecessors, (20), 5 states have return successors, (20), 4 states have call predecessors, (20), 4 states have call successors, (20) [2022-11-16 12:31:24,943 INFO L276 IsEmpty]: Start isEmpty. Operand 3470 states and 4720 transitions. [2022-11-16 12:31:24,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2022-11-16 12:31:24,949 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:24,949 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:24,990 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:25,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:25,171 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:25,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:25,172 INFO L85 PathProgramCache]: Analyzing trace with hash 1923495595, now seen corresponding path program 3 times [2022-11-16 12:31:25,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:25,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [232493031] [2022-11-16 12:31:25,174 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-16 12:31:25,174 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:25,174 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:25,176 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:25,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-11-16 12:31:27,874 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-11-16 12:31:27,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:31:27,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 1329 conjuncts, 9 conjunts are in the unsatisfiable core [2022-11-16 12:31:27,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:27,984 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:31:28,038 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:31:28,215 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 12:31:28,242 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 12:31:28,412 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-11-16 12:31:28,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:31:28,412 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:28,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [232493031] [2022-11-16 12:31:28,412 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [232493031] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:31:28,412 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:31:28,412 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:31:28,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391137386] [2022-11-16 12:31:28,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:31:28,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:31:28,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:28,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:31:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:31:28,414 INFO L87 Difference]: Start difference. First operand 3470 states and 4720 transitions. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:31:32,911 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.22s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:31:35,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:31:38,204 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:31:40,342 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:31:40,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:40,893 INFO L93 Difference]: Finished difference Result 6907 states and 9407 transitions. [2022-11-16 12:31:40,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:31:40,899 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 189 [2022-11-16 12:31:40,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:40,918 INFO L225 Difference]: With dead ends: 6907 [2022-11-16 12:31:40,918 INFO L226 Difference]: Without dead ends: 3482 [2022-11-16 12:31:40,929 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:31:40,930 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 3 mSDsluCounter, 1344 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2058 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.2s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:40,930 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2058 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 4 Unknown, 0 Unchecked, 12.2s Time] [2022-11-16 12:31:40,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3482 states. [2022-11-16 12:31:41,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3482 to 3478. [2022-11-16 12:31:41,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3478 states, 2546 states have (on average 1.3220738413197173) internal successors, (3366), 2587 states have internal predecessors, (3366), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-16 12:31:41,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3478 states to 3478 states and 4728 transitions. [2022-11-16 12:31:41,140 INFO L78 Accepts]: Start accepts. Automaton has 3478 states and 4728 transitions. Word has length 189 [2022-11-16 12:31:41,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:31:41,141 INFO L495 AbstractCegarLoop]: Abstraction has 3478 states and 4728 transitions. [2022-11-16 12:31:41,141 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2022-11-16 12:31:41,143 INFO L276 IsEmpty]: Start isEmpty. Operand 3478 states and 4728 transitions. [2022-11-16 12:31:41,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2022-11-16 12:31:41,150 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:31:41,151 INFO L195 NwaCegarLoop]: trace histogram [11, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:31:41,182 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Forceful destruction successful, exit code 0 [2022-11-16 12:31:41,375 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:41,375 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:31:41,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:31:41,375 INFO L85 PathProgramCache]: Analyzing trace with hash -2080493221, now seen corresponding path program 1 times [2022-11-16 12:31:41,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:31:41,377 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [585934611] [2022-11-16 12:31:41,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:31:41,377 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:31:41,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:31:41,378 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:31:41,379 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-11-16 12:31:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:31:42,394 INFO L263 TraceCheckSpWp]: Trace formula consists of 1669 conjuncts, 12 conjunts are in the unsatisfiable core [2022-11-16 12:31:42,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:31:44,924 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 48 proven. 28 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2022-11-16 12:31:44,924 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-16 12:31:53,680 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2022-11-16 12:31:53,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:31:53,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [585934611] [2022-11-16 12:31:53,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [585934611] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-16 12:31:53,681 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-16 12:31:53,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2022-11-16 12:31:53,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1738945613] [2022-11-16 12:31:53,681 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-16 12:31:53,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-11-16 12:31:53,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:31:53,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-11-16 12:31:53,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=415, Unknown=0, NotChecked=0, Total=506 [2022-11-16 12:31:53,683 INFO L87 Difference]: Start difference. First operand 3478 states and 4728 transitions. Second operand has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-16 12:31:59,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:31:59,965 INFO L93 Difference]: Finished difference Result 6952 states and 9514 transitions. [2022-11-16 12:31:59,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-11-16 12:31:59,966 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) Word has length 196 [2022-11-16 12:31:59,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:31:59,984 INFO L225 Difference]: With dead ends: 6952 [2022-11-16 12:31:59,985 INFO L226 Difference]: Without dead ends: 3486 [2022-11-16 12:31:59,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 369 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 10.3s TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870 [2022-11-16 12:31:59,997 INFO L413 NwaCegarLoop]: 714 mSDtfsCounter, 39 mSDsluCounter, 6374 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 7088 SdHoareTripleChecker+Invalid, 296 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2022-11-16 12:31:59,998 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 7088 Invalid, 296 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [39 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2022-11-16 12:32:00,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3486 states. [2022-11-16 12:32:00,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3486 to 3486. [2022-11-16 12:32:00,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3486 states, 2554 states have (on average 1.3210649960845733) internal successors, (3374), 2595 states have internal predecessors, (3374), 682 states have call successors, (682), 250 states have call predecessors, (682), 249 states have return successors, (680), 672 states have call predecessors, (680), 680 states have call successors, (680) [2022-11-16 12:32:00,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3486 states to 3486 states and 4736 transitions. [2022-11-16 12:32:00,202 INFO L78 Accepts]: Start accepts. Automaton has 3486 states and 4736 transitions. Word has length 196 [2022-11-16 12:32:00,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:00,203 INFO L495 AbstractCegarLoop]: Abstraction has 3486 states and 4736 transitions. [2022-11-16 12:32:00,204 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 21 states have (on average 5.809523809523809) internal successors, (122), 23 states have internal predecessors, (122), 4 states have call successors, (22), 2 states have call predecessors, (22), 5 states have return successors, (22), 4 states have call predecessors, (22), 4 states have call successors, (22) [2022-11-16 12:32:00,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3486 states and 4736 transitions. [2022-11-16 12:32:00,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 198 [2022-11-16 12:32:00,209 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:00,210 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:00,242 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:00,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:00,437 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:00,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:00,437 INFO L85 PathProgramCache]: Analyzing trace with hash -554478753, now seen corresponding path program 2 times [2022-11-16 12:32:00,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:32:00,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1363360258] [2022-11-16 12:32:00,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 12:32:00,438 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:00,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:32:00,439 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:32:00,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2022-11-16 12:32:03,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-16 12:32:03,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 12:32:04,024 INFO L263 TraceCheckSpWp]: Trace formula consists of 1680 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 12:32:04,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-16 12:32:04,830 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:04,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:32:04,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1363360258] [2022-11-16 12:32:04,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1363360258] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:04,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:04,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:32:04,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169002740] [2022-11-16 12:32:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:04,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:32:04,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:32:04,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:32:04,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:32:04,833 INFO L87 Difference]: Start difference. First operand 3486 states and 4736 transitions. Second operand has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 12:32:06,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:06,262 INFO L93 Difference]: Finished difference Result 8233 states and 11523 transitions. [2022-11-16 12:32:06,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:32:06,263 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) Word has length 197 [2022-11-16 12:32:06,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:06,288 INFO L225 Difference]: With dead ends: 8233 [2022-11-16 12:32:06,288 INFO L226 Difference]: Without dead ends: 4792 [2022-11-16 12:32:06,300 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-11-16 12:32:06,301 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 575 mSDsluCounter, 4143 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 87 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 5046 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 87 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:06,301 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 5046 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [87 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-11-16 12:32:06,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4792 states. [2022-11-16 12:32:06,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4792 to 3510. [2022-11-16 12:32:06,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3510 states, 2574 states have (on average 1.3185703185703186) internal successors, (3394), 2615 states have internal predecessors, (3394), 682 states have call successors, (682), 250 states have call predecessors, (682), 253 states have return successors, (688), 676 states have call predecessors, (688), 680 states have call successors, (688) [2022-11-16 12:32:06,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3510 states to 3510 states and 4764 transitions. [2022-11-16 12:32:06,663 INFO L78 Accepts]: Start accepts. Automaton has 3510 states and 4764 transitions. Word has length 197 [2022-11-16 12:32:06,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:06,664 INFO L495 AbstractCegarLoop]: Abstraction has 3510 states and 4764 transitions. [2022-11-16 12:32:06,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.857142857142858) internal successors, (83), 6 states have internal predecessors, (83), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 1 states have call successors, (14) [2022-11-16 12:32:06,665 INFO L276 IsEmpty]: Start isEmpty. Operand 3510 states and 4764 transitions. [2022-11-16 12:32:06,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-11-16 12:32:06,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:06,672 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:06,711 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:06,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:06,887 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:06,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:06,888 INFO L85 PathProgramCache]: Analyzing trace with hash 133179952, now seen corresponding path program 1 times [2022-11-16 12:32:06,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:32:06,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609661621] [2022-11-16 12:32:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:06,890 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:32:06,891 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:32:06,937 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2022-11-16 12:32:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:08,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 1682 conjuncts, 17 conjunts are in the unsatisfiable core [2022-11-16 12:32:08,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:09,049 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:32:09,107 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-11-16 12:32:09,402 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 12:32:09,433 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-11-16 12:32:09,728 INFO L134 CoverageAnalysis]: Checked inductivity of 318 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-16 12:32:09,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:09,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:32:09,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [609661621] [2022-11-16 12:32:09,728 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [609661621] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:09,730 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:09,730 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-11-16 12:32:09,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678970725] [2022-11-16 12:32:09,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:09,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-16 12:32:09,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:32:09,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-16 12:32:09,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-11-16 12:32:09,733 INFO L87 Difference]: Start difference. First operand 3510 states and 4764 transitions. Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:32:14,544 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:32:17,732 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:32:20,123 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:32:22,292 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-11-16 12:32:23,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:23,002 INFO L93 Difference]: Finished difference Result 7019 states and 9563 transitions. [2022-11-16 12:32:23,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-16 12:32:23,010 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) Word has length 201 [2022-11-16 12:32:23,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:23,046 INFO L225 Difference]: With dead ends: 7019 [2022-11-16 12:32:23,047 INFO L226 Difference]: Without dead ends: 3554 [2022-11-16 12:32:23,061 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-16 12:32:23,062 INFO L413 NwaCegarLoop]: 713 mSDtfsCounter, 4 mSDsluCounter, 4179 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 1 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4892 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:23,063 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4892 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 118 Invalid, 4 Unknown, 0 Unchecked, 12.6s Time] [2022-11-16 12:32:23,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2022-11-16 12:32:23,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 3534. [2022-11-16 12:32:23,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3534 states, 2590 states have (on average 1.3166023166023166) internal successors, (3410), 2631 states have internal predecessors, (3410), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 684 states have call predecessors, (720), 680 states have call successors, (720) [2022-11-16 12:32:23,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3534 states to 3534 states and 4812 transitions. [2022-11-16 12:32:23,429 INFO L78 Accepts]: Start accepts. Automaton has 3534 states and 4812 transitions. Word has length 201 [2022-11-16 12:32:23,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:23,430 INFO L495 AbstractCegarLoop]: Abstraction has 3534 states and 4812 transitions. [2022-11-16 12:32:23,430 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 6 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 4 states have call predecessors, (15), 2 states have call successors, (15) [2022-11-16 12:32:23,431 INFO L276 IsEmpty]: Start isEmpty. Operand 3534 states and 4812 transitions. [2022-11-16 12:32:23,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2022-11-16 12:32:23,437 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:23,437 INFO L195 NwaCegarLoop]: trace histogram [12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:23,473 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:23,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:23,659 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:23,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:23,659 INFO L85 PathProgramCache]: Analyzing trace with hash 203555927, now seen corresponding path program 1 times [2022-11-16 12:32:23,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:32:23,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [928206864] [2022-11-16 12:32:23,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:23,662 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:23,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:32:23,662 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:32:23,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2022-11-16 12:32:24,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:24,732 INFO L263 TraceCheckSpWp]: Trace formula consists of 1713 conjuncts, 11 conjunts are in the unsatisfiable core [2022-11-16 12:32:24,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 311 trivial. 0 not checked. [2022-11-16 12:32:26,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:26,308 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:32:26,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [928206864] [2022-11-16 12:32:26,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [928206864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:26,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:26,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-16 12:32:26,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564812187] [2022-11-16 12:32:26,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:26,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-16 12:32:26,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:32:26,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-16 12:32:26,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:32:26,310 INFO L87 Difference]: Start difference. First operand 3534 states and 4812 transitions. Second operand has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 12:32:27,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:27,230 INFO L93 Difference]: Finished difference Result 7818 states and 10835 transitions. [2022-11-16 12:32:27,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-16 12:32:27,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) Word has length 208 [2022-11-16 12:32:27,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:27,252 INFO L225 Difference]: With dead ends: 7818 [2022-11-16 12:32:27,253 INFO L226 Difference]: Without dead ends: 4329 [2022-11-16 12:32:27,263 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 202 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-11-16 12:32:27,264 INFO L413 NwaCegarLoop]: 907 mSDtfsCounter, 148 mSDsluCounter, 4345 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 5252 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:27,264 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 5252 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-11-16 12:32:27,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4329 states. [2022-11-16 12:32:27,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4329 to 3542. [2022-11-16 12:32:27,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3542 states, 2598 states have (on average 1.3156274056966897) internal successors, (3418), 2635 states have internal predecessors, (3418), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 688 states have call predecessors, (720), 680 states have call successors, (720) [2022-11-16 12:32:27,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4820 transitions. [2022-11-16 12:32:27,552 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4820 transitions. Word has length 208 [2022-11-16 12:32:27,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:27,552 INFO L495 AbstractCegarLoop]: Abstraction has 3542 states and 4820 transitions. [2022-11-16 12:32:27,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.142857142857142) internal successors, (85), 5 states have internal predecessors, (85), 2 states have call successors, (21), 2 states have call predecessors, (21), 4 states have return successors, (17), 4 states have call predecessors, (17), 2 states have call successors, (17) [2022-11-16 12:32:27,553 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4820 transitions. [2022-11-16 12:32:27,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2022-11-16 12:32:27,558 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:27,559 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:27,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:27,780 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:27,780 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:27,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:27,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1558303520, now seen corresponding path program 1 times [2022-11-16 12:32:27,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:32:27,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [645230092] [2022-11-16 12:32:27,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:27,783 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:27,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:32:27,785 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:32:27,827 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2022-11-16 12:32:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 12:32:28,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1699 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-16 12:32:28,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 12:32:29,196 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 335 trivial. 0 not checked. [2022-11-16 12:32:29,196 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 12:32:29,196 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 12:32:29,197 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [645230092] [2022-11-16 12:32:29,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [645230092] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 12:32:29,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 12:32:29,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 12:32:29,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471288391] [2022-11-16 12:32:29,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 12:32:29,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 12:32:29,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 12:32:29,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 12:32:29,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 12:32:29,199 INFO L87 Difference]: Start difference. First operand 3542 states and 4820 transitions. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-16 12:32:30,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 12:32:30,048 INFO L93 Difference]: Finished difference Result 8337 states and 11679 transitions. [2022-11-16 12:32:30,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 12:32:30,049 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) Word has length 207 [2022-11-16 12:32:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 12:32:30,066 INFO L225 Difference]: With dead ends: 8337 [2022-11-16 12:32:30,066 INFO L226 Difference]: Without dead ends: 4840 [2022-11-16 12:32:30,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 12:32:30,077 INFO L413 NwaCegarLoop]: 906 mSDtfsCounter, 339 mSDsluCounter, 1614 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-11-16 12:32:30,078 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 2520 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-11-16 12:32:30,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4840 states. [2022-11-16 12:32:30,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4840 to 3542. [2022-11-16 12:32:30,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3542 states, 2598 states have (on average 1.3156274056966897) internal successors, (3418), 2635 states have internal predecessors, (3418), 682 states have call successors, (682), 250 states have call predecessors, (682), 261 states have return successors, (720), 688 states have call predecessors, (720), 680 states have call successors, (720) [2022-11-16 12:32:30,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3542 states to 3542 states and 4820 transitions. [2022-11-16 12:32:30,426 INFO L78 Accepts]: Start accepts. Automaton has 3542 states and 4820 transitions. Word has length 207 [2022-11-16 12:32:30,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 12:32:30,427 INFO L495 AbstractCegarLoop]: Abstraction has 3542 states and 4820 transitions. [2022-11-16 12:32:30,427 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (16), 1 states have call predecessors, (16), 1 states have call successors, (16) [2022-11-16 12:32:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3542 states and 4820 transitions. [2022-11-16 12:32:30,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2022-11-16 12:32:30,435 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 12:32:30,435 INFO L195 NwaCegarLoop]: trace histogram [12, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 12:32:30,467 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2022-11-16 12:32:30,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:30,660 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-16 12:32:30,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 12:32:30,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1916797959, now seen corresponding path program 1 times [2022-11-16 12:32:30,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 12:32:30,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [78294508] [2022-11-16 12:32:30,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 12:32:30,663 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 12:32:30,663 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 12:32:30,664 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 12:32:30,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_33fbcf7c-0cf0-40f9-b9df-edf46f2ceaf8/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2022-11-16 12:35:46,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 12:35:46,320 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.